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Ty-Mawr ˆ www.lime.org.uk

traditional & ecological building materials…deunyddiau adeiladu traddodiadol ac ecolegol

Caring for buildings…Caring for the environment…Caring for health…

Gofalu am adeiladau…Gofalu am yr amgylchedd…Gofalu am iechyd…

2011


Company Principles – breathing life into buildings!

Established in 1995, by husband and wife - Nigel and Joyce Gervis, Ty-Mawr ˆ Lime Ltd has made an enormous contribution to resurrecting the use of traditional building materials in Wales as well as further afield and has become a market leader in the design, manufacture and distribution of environmentally-friendly building materials and systems providing a 'one-stop' shop for clients throughout the UK. They have received several awards for their work in this field and at the end of 2009, were named as one of the 52 ‘sustainability champions’ on Wales' first Green List! Their approach to buildings and building products is based on the following principles that are still central to the whole business, namely:

caring for buildings Caring appropriately for buildings requires an understanding of how they are constructed and hence how they function – only then is it possible to identify the right materials to repair them with. We understand the technical qualities of each of our products, this enables us to give the best possible advice and support for each project. Careful product selection is vital to ensure the health and longevity of your building.

caring for the environment All of our products are designed, assessed and selected to have minimal environmental impact. We continually work to monitor and improve the environmental credentials of all of our products e.g. we have developed plasters that use recycled glass as an aggregate (instead of extracting virgin sand) or hemp fibres which are fully renewable. We were the first company in Wales to gain our BS8555 Environment Management System Award under the UKAS Accredited Seren Scheme. It demonstrates our commitment to the environment from the paper we choose, to the way in which we dispose of any waste. It runs through every aspect of our business, we are not merely producing and selling these products because it is fashionable, it is absolutely core to our business and always has been e.g. our head office and training centre no longer run on oil, they are heated through a heat recovery system installed on the manufacturing yard, backed up by a biomass boiler - this means that we are saving up to 40 tonnes of carbon dioxide emissions per annum! See page 47!

quality We have been determined to maintain the quality of our products and services as the business has grown. In 2007, we gained our ISO9001:2000 quality

management system award helping to ensure that we continue to deliver the best possible products and services.

caring for health Our products pose no health hazard to those using or living with the materials. It is estimated that we spend up to 90% of our time indoors, so the quality of the internal environment is important to our well being. Our materials do not contribute to indoor pollution; in fact some of them actually help to improve indoor air quality e.g. T y-Mawr ˆ THERMAFLEECE® sheep's wool insulation actually locks in formaldehyde given off by heavily glued products and our plasters, paints and boards help to regulate humidity, this is key to maintaining appropriate comfort levels in the room.

sustainability We want to contribute to a sustainable future – we believe that one important aspect of this is through supporting local communities – we strive to buy and promote local and British products. Where this is not possible, we work to find the product with the best ecological and technical credentials and hope that in generating a market, a local product may eventually be produced. This has happened with several of our products, most notably our sheep's wool insulation which is now made from Welsh wool, as well as reducing product road miles, this will contribute in a small way to sustaining the rural communities in which we live and work.

innovation Finally, we are excited about combining new and traditional materials in innovative ways. As a result, we have developed some award winning products: the insulated limecrete floor (pages 18-20) and the glaster® plaster and mortar (pages 22-24) and hemp lime plaster (pages 13-15) ranges.

Cover: T y-Gwydr ˆ - Courtesy www.ty-newyddlexels.co.uk, www.co2dl.co.uk (architect)Ty-Mawr ˆ Head Office and Training Centre, Llangors Lake (Ty-Mawr ˆ - central), Henry, Harvey and Cai (Ty-Mawr ˆ boys!), Ty-Mawr ˆ Thermafleece Welsh Sheeps wool insulation.

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Contents

Tˆy-Mawr’s Distribution Warehouse, Brecon

Section 1

Section 3

Lime Products

Paints and Finishing Products

Introduction and Benefits Types of Lime Choosing a Lime Traditional Fat Lime Putty Aggregates for Mortars, Plasters & Screeds

2-3 4 5-6 7 8-9

Traditional Fat Lime Mortar

10-11

Traditional Fat Lime Plaster

12

Introduction

48

Aglaia Surface Preparation

49-50

Aglaia Wall Paints (Natural Emulsion)

51-52

Specialist and Textured Wall Paints Beeck's Internal Wall Paints

53 54-56

Earthborn Wall Paints

57-59

Choosing a Wall Paint - Summary

60-61

Internal Wood and Floor Treatments

62 63

Lime Hemp Plaster and Daub

13-15

Hydraulic Lime

16-17

Aglaia Wood Primers

Limecrete Floor

18-20

Aglaia Wood Paint

64-66

Aglaia Wood Glazes

67

Paints for Metal

67

glaster® Floor Screed and Bedding Mortar 25

Paints for Sawn Wood

67

Tools and Ancillaries 26-27 > pozzolans, hessian, laths, reinforcing hair, primal, fine casting plaster, jute scrim, nail gun, mortar mills, pan mixer, hand tools

Aglaia Oils and Waxes

68

Limewash > Ty-Mawr ˆ Limewash, Shelter Coats, Casein, Tallow

28

Section 4

Pigments

29

Paint Matching and Mixing

29

Limecrete Floor Calculation Form glaster® Plasters and Mortars

21 22-24

Beeck's Exterior Masonry Paints Earthborn Masonry Paints

Buildings and the Environment > New Timber-frame > Warm Roof > Solid Wall Insulation > External Wall Insulation > Internal Wall Insulation

30-33

Choosing a Board/Insulation

34-35

Section 5

Section 2 Boards and Insulation

36

Celenit Wood Wool Boards

36-37

Woodfibre Insulation Boards Gutex Homatherm Insulation Products

38-39 40-41

Thermafleece® Sheep’s Wool Insulation 42-44 Original, EcoRoll, TF35 Hemp Insulation, Edenbloc

69-71 72 Ty-Mawr ˆ Training Centre

Courses and Books Introduction Courses > Introduction to Lime > Lime Plastering > Decorative Plasterwork > Pargetting > Energy Efficiency in Old Buildings > Thatching > Drystone Walling > Venue Hire, CPDs and Books

Reed Mat, Reed Boards

glaster® panels

73 73 74 74 75 75 76 76 77

Adminstration Services and Placing an Order Terms and Conditions Deliveries and Distribution How to find us!

78 79 80 81

45

Calsitherm Climate Board

46

Energy Efficiency Measures at Ty-Mawr ˆ

47

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

Local sourcing - 10% of UK carbon dioxide emissions is attributed to the production and transportation of building products – it is important to source locally where possible to minimise road miles! 1


Lime Products Introduction & Benefits Parthenon built in 432BC

Benefits of Lime - caring for buildings Lime has been used as the binder in mortars, plasters, paints and floors for centuries, it is usually blended with an aggregate to make mortar or an aggregate and fibre to make plaster/render. Lime has a proven track record, it has been used in architecture since 12,000 B.C. and there are plenty of examples from antiquity that still survive today (how many modern buildings will be standing in the next hundred or even thousand years, like the Parthenon built in 432BC). We were cement-free in the UK up until the 1920s, so buildings pre-dating this would primarily have been constructed of lime. It is staggering to think that all of the stone and brick buildings we see around us every day like Victorian terraces, Georgian streets, farmhouses, churches, chapels, barns, village halls, castles, cathedrals, stately homes and abbeys are all built without cement - and those that have been repaired and cared for appropriately with lime are still standing. It is often thought that lime is not as 'strong' as cement and so has no place in buildings today, but lime has other qualities, qualities that have helped traditional buildings to survive (very sustainable having buildings that last for centuries!) and qualities that are now encouraging a new generation of builders/developers to incorporate lime into their new builds - creating healthier, more sustainable homes. > lime products are vapour permeable - this is important in solid wall buildings as it means that any moisture is allowed to escape from the walls. This helps to control condensation and damp within the building (most modern renders, plasters, mortars and paints are impervious, trapping moisture in the walls, leading to problems such as condensation, mould growth and even degradation of the fabric of the building such as timbers rotting, bricks/masonry crumbling). > lime mortars are relatively flexible and will accommodate some movement in a wall without cracking, each joint of lime mortar is like a mini expansion joint. If lime cracks it can ‘self-heal’ when exposed to air unlike its modern counterparts which are harder and hence more brittle. This allows movement and flex within structures whilst allowing them to remain upright! (just look up at the beautiful domed ceiling in a great cathedral, only achieveable because of this quality!) Often in earth quake zones, the 'traditional' buildings constructed of lime remain standing whilst modern 'cement' buildings fall down as they are more brittle. > lime mortars are sacrificial - so any salt or frost damage occurs in the mortar not in the more expensive components like brick/masonry.

2

See www.lime.org.uk for technical data and latest prices

Courtesy: The National Trust

“A breathing building” GOOD EAVES AND WELL MAINTAINED RAINWATER GOODS

= EQUILIBRIUM

TIMBER LINTEL RAIN EVAPORATION OF MOISTURE

INTERNAL LIME PLASTER WITH VAPOUR PERMEABLE PAINT

LIME MORTAR POINTING (or lime render with vapour permeable paint) EVAPORATION OF MOISTURE

EVAPORATION OF MOISTURE

LAND DRAIN

VAPOUR PERMEABLE FLOOR

RISING DAMP

Solid Wall Construction Building - maintained with soft, traditional, vapour permeable materials.

“Sick building” POORLY MAINTAINED RAINWATER GOODS TIMBER LINTEL - WET ROT RAIN IMPERVIOUS PLASTER AND OR IMPERVIOUS PAINT (TRAPS MOISTURE)

WATER PENETRATION THROUGH CRACKS

POTENTIALLY LEADS TO CONDENSATION, MOULD GROWTH

HARD IMPERVIOUS RENDER AND OR PAINT (TRAPS MOISTURE) BLOCKED LAND DRAIN PAVING

DENSE CONCRETE FLOOR

RISING DAMP

Solid Wall Construction - repaired with hard, modern impervious materials potentially trapping moisture and leading to problems such as damp, condensation, mould growth, wet/dry rot etc. Tel: 01874 611350


Lime Products Lime allows bricks to be reclaimed ready to be re-used, cement is so strong that this is not often possible!.

Impervious, hard cement render has been removed revealing rotten lintels and degrading masonry caused by trapped moisture.

Caring for the environment

Caring for health

We, as well as others, have been keen over the last few years to highlight the potential of lime within new builds as a cement replacement. The use of cement has grown enormously, by 2020, world production is expected to top 3,500 million tonnes, three times the level used just a decade ago. 10% of worldwide Carbon Dioxide emissons are attributed to the production of cement (this is comparable with the aviation industry). The cement industry itself has taken measures to reduce the impact but there are things we can all do like considering alternatives whenever we think about using it in our buildings/structures. The range of limes now available as well as the work we have been doing in developing 'systems' has made the possibility of this much greater. See new timber-framed buildings (see page 30), upgrading 'solid wall' constructions (see pages 32-33), warm roofs (see page 31) and limecrete floors (see pages 18-21).

> lime is considered to be less harmful to human health than many of its modern counterparts: lime plaster is hygroscopic (literally means ‘water seeking’) which draws the moisture from the internal to the external environment, this helps to regulate humidity creating a more comfortable living environment as well as helping to control condensation and mould growth which have been shown to have links to allergies and asthmas.

lime plasters and limewash are nontoxic, therefore they do not contribute to indoor air pollution unlike many modern paints.

Finally, lime products create a beautiful, lively, unique aesthetic that no modern material can replicate....well we think so...

The Lime Cycle Water-born Carbon Dioxide (CO2) is absorbed over time to form Calcium Carbonate (CaCO3) Burning limestone in a kiln drives off Carbon Dioxide (CO2) and water (H2O

ON

> lime enables other natural and sustainable products such as wood including woodfibre, wood wool boards, hemp, straw etc to be used because of its ability to control moisture (if cement was used, these buildings would compost!).

Limestone Calcium Carbonate (CaCO3)

IN G

Slaked lime (putty) is mixed with selected sands to produce mortars and plasters, or with water to produce limewash

N

RN

AT I

O

Limestone from the quarry

BU

> lime mortars allow other building components such as stone, wood and bricks to be reused and recycled because they can be easily cleaned of mortar/limewash.

CARB

> lime is burnt at a lower temperature than cement and so has an immediate energy saving of 20% (although kilns etc are improving so figures do change). A standard lime mortar has about 60-70% of the embodied energy of a cement mortar. It is also considered to be more environmentally friendly because of its ability, through carbonation, to re-absorb its own weight in Carbon Dioxide (compensating for that given off during burning and so forms the well known lime cycle - see opposite).

Introduction & Benefits

Impervious modern paints prevent the wall from ‘breathing’ – it will blister, peel and flake and can lead to problems of condensation and mould growth.

Slaking Lime Burnt Lime Calcium Hydroxide Calcium Oxide (Ca(OH)2 (CaO)

Burnt lime is also known as quicklime or lumplime

Heat S L A KIN G

Slaking burnt lime in either:

or iii) in damp sand to produce a hot mix

i) an excess of water to produce a putty

or ii) a shortfall of water to produce a powder (hydrate)

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

3


Lime Products Types of Lime Courtesy: Sara Bennison

Courtesy: www.gelynisfarm.co.uk

Types of Lime

Hydraulic Lime (see pages 16-17)

There are many types of lime on the market. It is crucially important to understand their differences and the way in which they perform, only then is it possible to make an informed choice about which lime to use for different applications and environments.

In more recent years hydraulic ‘hydrated’ limes have been successfully produced from limestone containing clay and other impurities which gives it a faster initial set in more extreme conditions (including under water). There are many types of hydraulic lime and they are categorised according to the following (NHL - Naturally Hydraulic Lime):

Slaked/High Calcium/Putty/Air/‘Fat’ or Non-Hydraulic Lime (see pages 7-15) This lime is produced by slaking fresh Quicklime in an excess of water. It is also known as non-hydraulic lime because it requires exposure to air in order to carbonate and does not set under water. This lime is Courtesy: Singleton Birch manufacturers of the only British hydraulic lime.

Lime Hemp Plaster

glaster®

regarded as the most appropriate lime for old buildings where maximum permeability and flexibility is required.

Premixed ‘wet’ products are made from this lime putty with the addition of an aggregate and/or fibre.

Lime Mortar

Top Coat Plaster

> Feebly hydraulic lime (NHL2) – contains less than 12% clay which means it is slower to set; > Moderately hydraulic lime (NHL3.5) – contains 12%-18% clay which gives a slightly faster set; > Eminently hydraulic lime (NHL5/Z) – has up to 25% clay content which means that a much faster set is achieved.

Base Coat Plaster

Ty-Mawr’s ˆ premixed ‘wet’ lime products that are ready to use!

Hydrated or ‘Bag’ Lime This is the lime generally available in builders merchants. It is a non-hydraulic lime produced by slaking Quicklime with a shortfall of water which results in a powder. It is generally considered to be an inferior product to the fat lime putty described above for a number of reasons but primarily because it starts to degrade from the moment it is made and can actually fully carbonate in the bag before use. Widespread use of ‘bag’ lime has given ‘lime’ a poor name because of the instances where it simply has none of its original properties left by the time the end-user works with it, hence it fails, dusts etc. If ‘bag’ lime is the only option, then it should be purchased as fresh as possible and left to soak for two days in clean water. Although the resulting product is chemically the same as ‘fat’ lime putty, it is physically different, in particular it is less ‘sticky’.

4

See www.lime.org.uk for technical data and latest prices

Feebly Hydraulic

Moderately Hydraulic

Eminently Hydraulic

These limes have become increasingly popular over the last decade because of their comparative ‘ease of use’ and ‘strength’, compared to fat limes. For a dry, premixed hydraulic lime mortar/plaster - see pages 22-25.

Lime Putty Products

Hydraulic Limes NHL 2 NHL 3.5 NHL 5

Increased strength, reduced permeability and flexibility. Tel: 01874 611350


Lime Products Choosing a Lime Lime work must be protected from rain, drying winds and sun not just frost!

Pozzolans (see page 26) Pozzolans are ‘heated’ materials such as brickdust, Pulverised Fuel Ash (PFA), Calcined Clay, that contain silica, alumina and iron which become reactive towards alkalis including lime. They are frequently used to help to give a fat lime mortar a ‘faster’ set (essentially creating an ‘artificial’ hydraulic lime) and are therefore helpful in many situations to broaden the applications for fat limes. It is believed that many historic mortars were ‘fat’ or ‘non-hydraulic’ as those that have been analysed contained these ‘heated material’ which change the performance of the mortar. Today, hydraulic limes are more commonly used, sometimes wrongly, for increased set and strength. Please see below for some guidance on specifying and choosing the right lime. Properties Understanding the properties of the various limes will help to ensure a successful result through appropriate specification, see below. Type of lime / binder Impurities which affect setting properties

Pure/Air Fat Lime Putty

Feebly Hydraulic NHL2

Moderately Hydraulic NHL3.5

Eminently Hydraulic NHL5 (Z)

Negligible

Under 12% natural active clay minerals

12 - 18% natural active clay minerals

18 - 25% natural active clay minerals

Llancwyfan’s 14th Century Church, off the West coast of Anglesey, Wales. Courtesy: www.scharerconservation.co.uk

Lime Mortar Selection Application

Type of Lime

Suggested Mix Ratio by volume

Notes

Pointing/Building Stone/Brickwork

Fat Lime Mortar Hydraulic Lime NHL3.5/2

Premixed or 3 Sand*: 1 Lime Putty 2.5 Sand*: 1 Hydraulic Lime

glaster® Lime Mortar

Dry, Premix

■ The exact ratio will depend on the sand/aggregate used. ■ The colour, texture, workability and success of the mortar is predominantly influenced by the selection of sand/aggregate. ■ The softer the stone/brick, the softer the mortar must be. ■ To match an existing mortar, send a sample to us.

Flag Stone Bedding

Hydraulic Lime NHL5/Z glaster® Bedding Mortar

2.5 Sand*: 1 Hydraulic Lime Dry, Premix

■ For smaller tiles, please contact us. ■ Samples are highly recommended

Paving, Copings Chimneys, Parapets

Hydraulic Lime NHL5/Z

2 Sand*: 1 Hydraulic Lime

■ For

exposed areas, or any high weathering applications.

*It is important to choose a sharp, well-graded, well washed sand (see pages 8-9). NHL= Natural Hydraulic Lime (see pages 16-17).

> the existing materials – repairing likewith-like – this will usually provide the most satisfactory solution both aesthetically and technically, however it should not be done without considering Portland Cement the performance of the original materials, as well as the future Artificial mix of limestone plus demands. clay/slag >50%

> the time of year – the ideal time to do fat lime work, Strong, rapid set particularly external work, is poor permeability Strength (N/mm≤) Soft, slower set during the spring and early good permeability Speed of set in water (days) summer, lime work should never 0.5 Hours be done when the temperature is likely to fall below 5°C before The above diagram shows the ‘trade offs’ that need to be carbonation has taken place (which can take considered when choosing a lime - the stronger the lime, the months). Therefore, if work can not be faster it sets but the compromise is ‘vapour permeability’ and rescheduled to another time of the year ‘flexibility’ consideration should be given to adding a pozzolan to a fat lime (e.g. brickdust, Choosing a Lime calcined clay) to speed up the set or to using It is important for the well being of the a hydraulic lime. Appropriate protection is building that the most appropriate lime vital. product is chosen. Every situation needs to be carefully assessed e.g. in terms of: > the available time – occasionally work is > softness of the stone, brick etc – this programmed without enough time to should be a major factor in selection. The support the use of the materials specified, mortar should always be ‘softer’ than the rapid builds necessitate rapid sets therefore stone/brick, see Lime Mortar table above. adding a pozzolan to a fat lime or using a hydraulic lime should be considered (if > the environmental conditions – where the work can’t be reprogrammed!). environment is very wet e.g. sea-defence walls, canal walls, cellars, copings, pavings; a hydraulic lime is more appropriate because of its ability to set under water, see Lime Mortar table above. Vapour Permeability (ng/Pa.s.m)

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

Courtesy: www.roystondavies.co.uk

tips Use the quantity calculator on www.lime.org.uk to assist with calculating the materials required. 5


Lime Products Choosing a lime Craswell church - evidence of external lime plaster

On-site supervision/training

Occasionally, the choice still seems to be based on the availability of skills, unfortunately, lack of available skills means that often the stronger hydraulic limes or even cement are introduced into buildings where they have no place and will, in the long term, almost certainly contribute to damp problems and damage the very fabric of the building.

Application guides supplied with all of our lime-based products provide far more detailed information and set out some ‘golden rules’ for successful results. Before beginning to use any lime product, it should be understood that lime is caustic and eyes and skin should be protected at all times.

Traditional Lime Plaster Selection Building Material•

Site Type

Suggested Base Coat / Levelling Coat

Minimum Build-up

Suggested Top Coat

Minimum Build-up

– please note the top coat should not be stronger than the base coat

Cob, Rammed Earth, Strawbale (haired base coats)

Internal External

Fat Lime Base Coat Plaster Fat Lime Base Coat Plaster or Hydraulic Lime NHL2

2 x 9mm 2 x 9mm 2 x 9mm

Fat Lime Top Coat Plaster Fat Lime External Top Coat Plaster or Hydraulic Lime NHL2

1 x 3mm 1 x 3mm 1 x 6mm

Reed Mat, Reed Board (haired base coat)

Internal External

Fat Lime Plaster For Boards

2 x 9mm N/A

Fat Lime Top Coat Plaster

1 x 3mm

Celenit Wood Wool Boards (mesh base coat)

Internal **

Fat Lime Plaster For Boards (unhaired) Plaster or Hydraulic Lime NHL3.5/2 (with Beach aggregate) Hydraulic Lime NHL3.5 (with Beach aggregate)

1 x 9mm

Fat Lime Top Coat Plaster

1 x 3mm

1 x 9mm

Hydraulic lime NHL3.5

1 x 9mm

1 x 9mm

Hydraulic lime NHL3.5

1 x 9mm

Fat Lime Plaster For Boards or Hydraulic Lime NHL3.5 (with Beach aggregate) Hydraulic Lime NHL3.5 (with Beach aggregate)

2 x 6mm 2 x 6mm

Fat Lime Top Coat Plaster

1 x 3mm

2 x 9mm

Hydraulic Lime NHL3.5

1 x 9mm

External Woodfibre Board (mesh base coat)

Internal **

External Lath (internal only) Soft Stone (haired base coats)

Internal External

Fat Lime Base Coat Plaster Hydraulic Lime NHL3.5/2

2 x 9mm 2 x 9mm

Fat Lime Top Coat Plaster Fat Lime Top Coat Plaster or Hydraulic Lime NHL3.5/2

1 x 3mm 1 x 6mm

Soft Brick (haired base coat)

Internal External

Fat Lime Base Coat Plaster Fat Lime Base Coat Plaster or Hydraulic Lime NHL3.5/2

2 x 9mm 2 x 9mm 2 x 9mm

Fat Lime Top Coat Plaster Fat Lime Top Coat Plaster or Hydraulic Lime NHL3.5/2

1 x 3mm 1 x 6mm 1 x 6mm

Hard Stone (haired base coats)

Internal External

Hydraulic Lime NHL2 Hydraulic Lime NHL3.5

2 x 9mm 2 x 9mm

Fat Lime Top Coat Plaster Hydraulic Lime NHL3.5

1 x 3mm 1 x 6mm

Hard Engineering Brick Concrete Blocks (mesh base coat)

Internal

Hydraulic Lime NHL3.5/2

2 x 9mm

External

Hydraulic Lime NHL3.5

2 x 9mm

Fat Lime Top Coat Plaster or Hydraulic Lime NHL3.5/2 Hydraulic Lime NHL3.5/2

1 x 3mm 1 x 6mm 1 x 6mm

Insulation Blocks* (mesh base coat)

Internal External

Hydraulic Lime NHL3.5/2 Hydraulic Lime NHL3.5

2 x 9mm 2 x 9mm

Fat Lime Top Coat Plaster Hydraulic Lime NHL3.5/2

1 x 3mm 1 x 6mm

•Dub out uneven surfaces prior to applying first coat. *Insulation blocks have very high suction, be careful to maintain moisture content in render. ** Lime Hemp plaster is preferred in these scenarios - see table on page 15. Please note: Manufacturers application guides must be followed. To reduce the environmental impact of your lime plaster, use glaster® see pages 22-24 or lime hemp plaster see pages 13-15 as alternatives to standard lime plasters. NHL= Natural Hydraulic Lime (to which plastering/rendering aggregate see page 8-9 must be added in correct ratio).

6

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Lime Products Traditional Fat Lime Putty Courtesy: National Museums and Galleries of Wales, Kennixton Farmhouse, St Fagan’s

Courtesy: J. Beavan, Timber frame - lime plaster, in-fill panels

We make our own lime putty - it is produced by ‘slaking’ a British quicklime in an excess of water. It is then allowed to mature. This fat lime putty can then be used to make plaster/mortar by blending it with an appropriate aggregate – see pages 8-9, or diluted to make a limewash - see page 28.

Benefits > it is regarded as the most appropriate lime to use in the conservation of old buildings where it is important to maximise softness, vapour permeability and flexibility. > it keeps indefinitely and especially well in buckets when stored correctly. > our dedicated warehouse facility, automated batching and stock rotation ensures that our putty is produced and stored to the highest standard. > we produce our own putties in Wales, in our manufacturing facility that is under our ISO9001 2008 quality management system.

Courtesy: Spitalfields Trust, Allt-y-Bela

> we capture the waste heat given off during slaking hence producing one of the most environmentally friendly putties on the market.

Courtesy: www.pindropclub.co.uk strawdio

1 tonne bulk bag 20 litre in bucket LIM-PUB LIM-PUBU Available in “Coarse” or “Fine”, please specify when ordering. Please note: For prices and further information, see www.lime.org.uk. Large order discounts are available for this product, please call for a quotation. For information about delivery - see page 80.

tips Fat lime putty is the ideal binder for plasters/mortars when used with soft brick/stone, straw, clay/cob buildings. Cement as well as hydraulic limes are too strong and hence incompatible longer term with many of these ‘softer’ buildings.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

7


Lime Products Aggregates for Mortars, Plasters & Screeds To make a successful lime mortar or plaster, lime must be blended with an appropriate sand/aggregate. It is important to choose a well-washed, wellgraded sand which will aid workability and minimise shrinkage. At Ty-Mawr, ˆ we have trialed and carefully selected an excellent range of appropriate aggregates in a wide range of colours and textures. This allows us to help you to produce a mortar as close to the original as possible where required (see mortar analysis on page 11).

We carefully blend some aggregates to produce a perfect grading for lime mortars and plasters – see below – this saves time gauging different sands on-site as well as giving the plaster/mortar the best possible qualities in terms of aesthetics and ease of use to aid a successful job. For those concerned about the level of impact caused by sand extraction, we offer a comprehensive range of recycled aggregates - better for the environment. Please call should you want assistance with choosing an aggregate or see page 11.

Aggregates for Mortars

tips Good aggregate selection is vital in producing a workable mix with minimal shrinkage as well as achieving an appropriate finish.

1 tonne bulk bag 25kg small bag

Old Red Sandstone Fine

AGGB-DHB AGGB-DHSB

1 tonne bulk bag 25kg small bag

Standard

AGGB-QVB AGGB-QVSB

1 tonne bulk bag 25kg small bag

Old Red Sandstone Coarse

AGGB-WDB AGGB-WDSB

1 tonne bulk bag 25kg small bag

Cotswold

AGGB-HVB AGGB-HVSB

1 tonne bulk bag 25kg small bag

Shale

AGGB-IBB AGGB-IBSB

1 tonne bulk bag 25kg small bag

Blaenavon

AGGB-HZB AGGB-HZSB

1 tonne bulk bag 25kg small bag

Buff

AGGB-IVB AGGB-IVSB

1 tonne bulk bag 25kg small bag

Cheshire

AGG-GB AGG-GSB

1 tonne bulk bag 25kg small bag

Beach

AGG-HB AGG-HSB

Aggregates for Backing Coat Plasters/Renders 1 tonne bulk bag 25kg small bag

Standard

AGGB-QVB AGGB-QVSB

1 tonne bulk bag 25kg small bag

Beach

AGG-HB AGG-HSB

Do not use normal sea sand. Contact us for advice. 8

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Lime Products Aggregates for Mortars, Plasters & Screeds

Pointing with Lime Mortar

Recycled glass aggregate

Aggregates for Top Coat Plaster Internally

Fine Silica

AGG-JB AGG-JSB

Externally

Beach (Smooth)

AGG-HB AGG-HSB

Roughcast

AGGB-GGPGB AGGB-GGPFSB

Recycled Glass Aggregates 1 tonne bulk bag 25kg small bag

for screeding for screeding

AGGR-PB AGGR-PSB

1 tonne bulk bag 25kg small bag

for basecoats and decorative plasterwork for basecoats and decorative plasterwork

AGGR-XB AGGR-XSB

1 tonne bulk bag 25kg small bag

for shelter coats for shelter coats

AGGR-TB AGGR-TSB

Aggregate, horse hair, lime putty, hydraulic lime

on es c form at

B to

of

Tyˆ -M

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ritish s ta

our aggreg

Important - aggregates do vary over time and some quarries can run out or even close down, so please ensure you purchase sufficient quantities for each job if the colour is critical. We always strive to find a close replacement. See www.lime.org.uk for current prices, for further information or delivery - see page 80.

ards • all nd

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

tips Our recycled aggregates can be used as a straight replacement for sand - this has the environmental benefit of reducing the extraction of sand whilst utilising a waste product see glaster® range on pages 22-25. 9


Lime Products Traditional Fat Lime Mortar Damage caused by cement pointing

Courtesy: St Paulinus Church, Llangors

Old and historic buildings will require re-pointing as the mortar gradually deteriorates over time. By using lime mortar to re-point, it will ensure that the building continues to function as it was designed - see page 2. A well re-pointed and well maintained wall will not need re-doing for another century or so! Our premixed lime mortars are ready-touse, wet mortars that simply require ‘knocking-up’ prior to use (in a drum or site mixer or by using a whisk bit on a drill and a bucket).

The whole of St Teilo's 13th Century Church was reconstructed at the National Museum of Wales, St Fagan's using only our fat lime mortar - just as it would have been originally.

They are produced by blending our fat lime putty with specially selected British Standard aggregates in our automated production facility to ensure consistency and quality.

Benefits of pre-mixed mortar: > gives a consistent, accurate mix hence removes the potential for mixing and gauging errors on-site. > minimises waste - enables you to ‘knock-up’ as much as you require in a day, anything left over can be reused, so nothing goes to waste. > helps to keep the site organised and clean. > colour and texture variations can be accommodated making sure regional variations are maintained. > high quality aggregate selection produces a very workable ‘fatty’ mix, minimising shrinkage.

Selecting a Mortar It is important when re-pointing an old building to select an appropriate mortar. Consideration should be given to both the colour and texture of the original mortar (unless it is to be subsequently limewashed). The box of samples shows a selection of our standard mortars (see opposite) which may assist your choice. Alternatively, you can send us a sample of your mortar (the size of a golf ball) for matching purposes.

tips We do not add cement to any of our products. To speed up the set or to increase the strength, see page 26 for pozzolans or call for advice.

Consideration must then also be given to the strength and flexibility required for a successful, long term mortar – see page 5, or call us for advice.

Approximate Coverage (Please note this can vary greatly depending on the size of the stone/brick and depth of joints.) Pointing 1 tonne covers 40sqm of stonework 1 tonne covers 100sqm of brickwork.

Note: a lime mortar is not a cement mortar with a shovel of hydrated lime in it! 10

See www.lime.org.uk for technical data and latest prices

Mortar samples

Box of nine mortar samples ideal for specifiers or contractors LIM-MSAM

Building 1 tonne lays 4sqm of stone – 450mm thick wall. 1 tonne lays 900 bricks – 225mm thick wall. Need help? Our quantity calculator on www.lime.org.uk will help to calculate the amount of material you require or call our advisers on 01874 611350

Tel: 01874 611350


Lime Products Traditional Fat Lime Mortar

tips

Ty-Mawr ˆ Range of Traditional Premixed Fat Lime Mortars

Cheshire (CH) price code A

Shale (SH) price code B

Old Red Sandstone Fine Standard (ST) price code A (ORSF) price code A

Cotswold (CT) price code A

Old Red Sandstone Coarse (ORSC) price code A

Blaenavon (BL) price code C

Buff (BU) price code C

Beach (H) price code B

Please note: the photographs show approximate representations. To be sure that you are ordering the colour and texture that you require, you can either purchase a sample box (opposite) or you can send us a sample of mortar – we can then advise on the closest standard mix or design a close mix. Alternatively, you can purchase a single 25kg bag to produce your own test panel on site. This is highly recommended. You should be aware that aggregates run out occasionally e.g. if the quarry closes. If it is important that you maintain the colour for the whole of the job, then you should ensure that you purchase sufficient supplies where possible.

1 tonne bulk bag LIM-MBCODE

20 litre bucket LIM-MBUCODE

It should be noted that traditional fat lime products cannot be used in the same way as modern materials. Application guidelines are supplied with the products and free telephone support is provided but it is highly recommended that you use a contractor experienced with lime products. Courses are also available see pages 73-77, and further information on application techniques can be found in “The Lime Handbook” see page 77.

25kg small bag LIM-MSBCODE

Please note: For prices and further information, see www.lime.org.uk. Large order discounts are available for this product, please call for a quotation. For information about delivery - see page 80.

Courtesy: Private Sector Housing, Pembrokeshire County Council.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

11


Lime Products Traditional Fat Lime Plaster A straw bale new build. Courtesy: www.quietearth.org.uk

Pierhead, Cardiff Bay. Courtesy: www.randmwilliams.co.uk

Lime plasters were commonly used in most buildings as the internal finish from the humble cottage to grand cathedrals, it is only in recent times that we have started to strip plasters off to reveal the stone or brick work. However, lime plasters have several attributes, as well as helping to maintain the well being of the building (moisture control and flexibility), lime plaster also has a ‘soft’ aesthetic which gives older buildings a particular ‘feel’. Their ability to control moisture also makes them a highly appropriate finish for use with other ecological materials such as straw, wood and earth, hence their increased use in new eco-builds. Lime plasters also improve the quality of the internal environment as they help to regulate humidity by absorbing moisture thus creating a healthier environment. Lime Plaster Top Coat going onto T y-Mawr ˆ Lime Hemp Plaster on Reedboard. Courtesy: www.earthandlime.co.uk

T y-Mawr ˆ premixed lime plaster is a readyto-use, wet plaster that simply requires ‘knocking-up’ prior to use. For information on suitable substrates - see page 6.

It is produced by blending our fat lime putty with specially selected aggregates – coarse for roughcast and base coats, and fine for the top coats. This is done in our automated production facility which ensures consistency and quality. Our premixed lime plaster can be supplied haired (synthetic or natural) or unhaired so that hair/fibre (see page 26) can then be added on site.

Benefits: > gives a consistent, accurate mix thus removing the potential for mixing and gauging errors on-site. > minimises waste - enables you to ‘knock-up’ as much as you require in a day, anything left over can be reused, so nothing goes to waste. > helps to keep the site organised and clean. > high quality aggregate selection produces a very workable ‘fatty’ mix with minimal shrinkage.

Approximate Coverage - refer to table on page 6 for build-ups! Base Coat - 1 tonne covers 40sqm at 7-8mm thick Top Coat -1 tonne covers 120sqm at 3mm thick

tips By adding a coarse aggregate, a roughcast or harled finish can be achieved - this greatly increases the surface area of the building and hence its ability to shed water - this can often solve water penetration problems in old buildings. 12

1 tonne bulk bag Base Coat - Unhaired LIM-SPUB

20 litre bucket

25kg small bag

LIM-SPUBU

LIM-SPUSB

Base Coat - Haired (please specify wether natural or synthetic) LIM-SPHB LIM-SPHBU

LIM-SPHSB

Top Coat - Unhaired LIM-FPB

(internal) LIM-FPSB

(internal) LIM-FPBU

(external) LIM-FPEBU

(external) LIM-FPESB

Please note: For prices and further information, see www.lime.org.uk. Large order discounts are available for this product, please call for a quotation. For information about delivery - see page 80.

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Lime Products Lime Hemp Plaster Hemp crop 4 weeks after planting

Ty-Mawr’s ˆ Lime Hemp Plaster is a blend of

British lime (binder) and hemp plant fibres/shiv (aggregate), to make a plaster which is suitable for old buildings as well as ecological new builds.

Hemp shiv

> internally for dubbing out (filling hollows) in the wall prior to plastering (to allow an even background for subsequent coats) or for patching old lime plaster. > externally for dubbing out and base coats for a traditional lime or glaster® top coat render.

Why lime? > has been successfully used in building for thousands of years. > helps to control condensation and damp, thus creating a healthier building. > enables other sustainable building materials to be used such as wood, straw, woodfibre boards, clay and earth. > can be recycled at the end of its useful life and will allow other building components to potentially be reclaimed and re-used. > is less damaging to the environment compared to its modern counterparts.

Why hemp fibre? > like all plants, the hemp plant absorbs carbon dioxide as it grows (which is good for the environment). > it is one of the faster growing biomasses, producing up to 25 tonnes of dry matter per hectare per year. > it is a low input plant – it does not require vast amounts of water or pesticides and uses no herbicides to grow, uniquely it also enriches and hence improves the soil in which it grows. > it is now grown in the UK enabling us to produce a fully British product. > it is renewable and therefore does not deplete a finite, natural resource (like sand) and so is more sustainable.

Where? > most conventional backgrounds – stone, brick, block, our wood wool and woodfibre boards, reed mat, reed board and traditional battens/laths. > internally as a plaster which can be left as a textured finish or trowelled smooth (n.b. for a completely smooth finish, the standard top coat plaster (page 12) should be used.) It can then be left unpainted or painted with a vapour permeable paint.

Benefits > made from a natural, renewable plant fibre (instead of depleting a natural aggregate resource). > has greater flexural strength than traditional lime plasters making it extremely durable e.g. it is far more resilient for use on corners, reveals and other vulnerable areas of the building.

Ideal for timber frame infill

> has some thermal properties and can therefore be used to help improve the insulation performance of the wall. It also adds to the thermal mass helping to keep buildings warm in winter and cool in summer. > can greatly improve the air tightness of old buildings, improving the comfort of the room and offering energy savings, (10-15% of heat loss in old buildings is through air leakage and draughts). > can be applied in much thicker coats (single coats can be applied between 10-50mm) than traditional lime plaster therefore is especially useful for ‘dubbing out’ hollows in walls prior to further plaster coats.

Patching with lime hemp. Courtesy: www.limerepairs.com

> is a successful way of ‘patching’ old lime plasters e.g. where electricians/plumbers have been ‘chasing out’. > is easier to use than conventional lime plaster (minimal shrinkage even on high suction backgrounds) offering labour savings. > is vapour permeable and therefore helps to regulate humidity safeguarding the functioning and health of the building. This makes it ideal for use in older buildings. > is beautiful - the coarse/medium plaster gives a soft textured finish otherwise the fine hemp, glaster® or lime top coat plaster can be used for a smoother finish.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

tips Lime Hemp Plaster is ideal for patching old plaster work and for dubbing out. 13


Lime Products Lime Hemp Plaster Tretower Court - Courtesy: CADW and Capps and Capps

Courtesy: S.Holmes – demonstrating the strength of the plaster!

Strength

Insulating

Tests show that the addition of hemp fibres to lime plaster dramatically improves the strength of the plaster, this gives it several advantages:

The addition of hemp fibre also improves the thermal properties of the plaster hence it is often used as an ‘insulating’ plaster. It will not achieve the same performance as some of the other solid wall insulation solutions - see page 33, but it does offer some advantages including:

> it is more robust and hence it is highly suitable for use in vulnerable areas (e.g. corners, reveals) within a building. Courtesy: S.Frost

> less disruption internally

> it has less ‘shrinkage’ which means less tending and that it is ideally suited to patching/repairing existing plaster.

> easier to achieve air tightness > no risk of cold bridging

> it also means that no meshing is required

> maintains the thermal mass of the wall which

(when applied in 10mm plus coats) and no additional hair is required.

helps to even out the temperature internally

> simplicity and hence far less labour.

Moisture The hemp fibres in the plaster actually retain a certain amount of moisture which is ideal for assisting carbonation (curing of lime) given the correct environmental conditions, this also means that it is especially useful for use on ‘high suction’ backgrounds such as blocks where traditional lime plasters might fail. It is a ‘thirsty’ product and so is ideal in timber-frame panels as it helps to wick moisture away from the timber, it is therefore used as the 2011 version of daub in wattle and daub infill panels.

Availability It is supplied ready to use and can be mixed in an ordinary cement mixer. The premixed products offer consistency of mix as well as a cleaner site and minimal waste.

Finishing The coarse/medium plaster gives a textured finish otherwise the fine hemp, glaster® (can be coloured) or traditional lime top coat plaster can be used to give a smoother finish. It can be left unpainted or painted with a vapour permeable paint (see pages 48-72).

Why is Relative Humidity important?

Bacteria

Buildings that are too dry/too humid create ideal environments for harmful agents to thrive which can have an effect on the occupants, we now understand that lime plasters (when finished with a vapour pearmeable paint see pages 48-72) help to maintain the optimal zone (as shown right) and so contribute to a healthy home.

Virus

Optimal zone

It is vapour permeable and so helps to regulate humidity, making a healthier environment - see below.

Mould and fungi Mites Allergy and asthma Tracheal infections Chemical reactions Ozone production Relative humidity %

0

10

20

30

40

50

60

70

80

“The Lime Hemp Plaster is an excellent material which makes using lime an easy process. The ability to build up a significant depth in one go, rather then numerous layers speeds work up considerably. It is a very useful updating of a traditional material”. SS. CARDIFF 4/11

14

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Lime Products Lime Hemp Plaster and Daub

Courtesy: www.traditionalbuilding.com

Lime Hemp Plaster Selection Building Material•

Site Type

Cob, Rammed Earth, Strawbale Lath, Reed Mat, Reed Board Celenit Wood Wool Boards

Woodfibre Board

Internal Internal

Suggested Base Coat/Levelling Coat Lime Hemp Plaster (medium) Lime Hemp Plaster (medium) Lime Hemp Plaster (medium)

Internal Ceilings Heavy Stress Lime Hemp Plaster (medium) (coarse mesh) Light Stress Lime Hemp Plaster (medium) Internal Levelling coat: level background with standard hydraulic lime plaster (min 2 x 10mm), for adhering boards 5mm to back of board, base coat Lime Hemp Plaster (medium) Internal Lime Hemp Plaster (medium) Internal Lime Hemp Plaster (medium)

Minimum Build-up 2 x 15mm

Suggested Top Coat – please note

Minimum

Lime Hemp Plaster (fine)

1 x 6mm**

2 x 10mm

Lime Hemp Plaster (fine)

1 x 6mm**

1 x 10-15mm

Lime Hemp Plaster (fine)

1 x 6mm**

1 x 10-15mm

Lime Hemp Plaster (fine)

1 x 6mm**

1 x 10-15mm 1 x 15mm

Lime Hemp Plaster (fine) Lime Hemp Plaster (fine)

1 x 6mm** 1 x 6mm**

the top coat should not be stronger than the base coat Build-up

Soft Stone, Brick 1 x 8-25mm˚ Lime Hemp Plaster (fine) 1 x 6mm** Hard Stone, Hard 1 x 8-15mm Lime Hemp Plaster (fine) 1 x 6mm** Engineering Brick Concrete Blocks Insulation Blocks* Internal Lime Hemp Plaster (medium) 1 x 10-15mm• Lime Hemp Plaster (fine) 1 x 6mm** •Dub out uneven surfaces prior to applying first coat. ˚Depending on suction. •Could be greater on well keyed, high suction backgrounds. **For a smoother finish, a Lime Top Coat Plaster (standard) can be applied in 1 x 3mm coat. *Insulation blocks have very high suction, be careful to control the suction. N.B. Drying times will be extended with thickness. It is possible to use lime hemp plaster for exterior use, provided the right protection, detailing and curing times are observed.

Approximate Coverage 1 tonne of wet mix covers 50sqm at 15mm coat or 125sqm at 6mm coat 25kg bag of wet mix covers 1.25sqm at 15mm coat or 3sqm at 6mm coat

R S OL I

WA LL B awr

Tyˆ -M

UI

D

FO 25kg small bag LIM-HEM-SB

20 litre bucket LIM-HEM-BU

Medium

LIM-HEMM-B

LIM-HEMM-SB

LIME-HEMM-BU

Fine

LIM-HEMF-B

LIM-HEMF-SB

LIM-HEMF-BU

E • ID A L

Coarse

1 tonne bulk bag LIM-HEM-B

LDIN GS

R E T S A PL

See www.lime.org.uk for prices and quantity calculator. This product appears in the plasters and renders calculator. Bulk discounts are available, please call.

Daub Clay and/or dung based daubs are primarily used now to repair the in-fill panels of timber framed buildings - wattle and daub. The daub is applied by hand to wattles which are interwoven branches, laths (see page 26), or rods. Daub has a plaster-like consistency and can include straw and animal dung. After the daub sets, it is then limewashed (see page 28) to make it more weather resistant.

Haired

1 tonne bulk bag LIM-DAHB

25kg small bag LIM-DAHSB

Unhaired

LIM-DAUB

LIM-DAUSB

Approximate Coverage – 1 tonne covers 20sqm at 15-18mm. Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

Courtesy: Anglesey County Council

15


Lime Products Hydraulic Lime Private new build. Courtesy: D Morgan, Architect www.co2dl.co.uk

Hydraulic Lime is produced from limestone containing clay and other impurities which enables it to set without exposure to air (unlike fat lime products). It therefore means that these limes can be used in harsher conditions e.g. they are ideal for use in foundations, limecrete floors (see pages 18-21), sea-defence walls, chimneys, parapets, copings, paving etc. Courtesy: Galboola Building and Civil Contractors

Hydraulic Limes are supplied as a powder to which water and sand must be added in the correct ratios – see pages 8-9 for our recommended aggregates for use with lime.

Table of Typical Compressive Strengths TYPE OF HYDRAULIC LIME

Courtesy: Mike Whitfield Construction Ltd

TYPICAL COMPRESSIVE STRENGTH (N/mm2) (tested @ 28 days, note greater strengths are achieved thereafter)

(Traditional Fat Lime

0.3 - 0.5)

NHL2

1.3 - 2.0

NHL3.5

2.0 - 4.5

NHL5

5.0 - 10

At T y-Mawr, ˆ we stock the French Castle Hydraulic Lime and the only British Singleton Birch Hydraulic Lime - we feel it is important to have a full range so that we can be as objective as possible with our advice strength, colour and environmental implications are all considerations. Lime Putty Products

Roughcast Aberglasney House and Gardens.

Hydraulic Limes NHL 2 NHL 3.5 NHL 5

Increased strength, reduced permeability and flexibility.

tips Current Building Regulations requires a mortar designation iii – BS5628 for a mortar with a compressive strength on 3.6 N/mm2 at 28 days for a modern 2 storey building – this is achievable with a NHL3.5 hydraulic lime making it a highly suitable product for more sustainable new builds! 16

See www.lime.org.uk for technical data and latest prices

Courtesy: Private Sector Housing, Pembrokeshire County Council

Benefits > variable strengths for most everyday applications: > feebly hydraulic lime (NHL2) – for use in internal plasters, mortar for brick/’soft’ stone. > moderately hydraulic lime (NHL3.5) – for external renders and mortars. > eminently hydraulic lime (NHL5) – for external flaunching and mortars in extreme conditions/situations where high strength is required but low vapour permeability. > NHLZ which has an added ‘pozzolan’ enabling an NHL3.5 to perform like an NHL5. > gain strength over time hence providing flexibility and avoiding the need for expansion joints. > considered to be more environmentally friendly than cement as they are burnt at a lower temperature and uniquely reabsorb some of the carbon dioxide given off during burning as they cure/carbonate in/on the wall. > enable building components to be reclaimed and reused as they are ‘softer’ than cement. > set under water hence ideal for applications in contact with the sea, canals, rivers etc. The French limes tend to have a faster set and have a compressive strength at the higher end of the grading scale, the British lime is at the lower end of the grading scale in these terms but has increased flexibility and vapour permeability. Each therefore is suitable for different uses – no one lime fits all! Please call our sales advisers on 01874 611350 for further information. Note, this is not the hydrated lime generally available in builders and agricultural merchants.

Tel: 01874 611350


Lime Products Hydraulic Lime and Natural Cement

Courtesy: Usk Valley Construction

Approximate Coverage - use our quantity calculator on www.lime.org.uk for further help. To make 1 tonne of wet mortar/plaster, 800kgs of aggregate are required: > For a 3:1 mix, 125kg lime required. For a 2.5:1 mix, 150kg lime required. For a 2:1 mix, 175kg lime required. See pages 5 and 6 for help choosing which lime.

Singleton Birch

Feebly Hydraulic

Moderately Hydraulic

Eminently Hydraulic

HYD-SB-NHL225 (25kg)

HYD-SB-NHL3525 (25kg)

HYD-SB-NHLZ25 (25kg)

Courtesy: The Canal’s Trust

Castle Cement

HYD-CC-NHL225 (25kg)

HYD-CC-NHL3525 (25kg)

HYD-CC-NHL525 (25kg)

Please note: For prices and further information, see www.lime.org.uk. Large order discounts are available for this product, please call for a quotation. For information about delivery - see page 80.

tips

Prompt Cement - a natural cement for extreme conditions. 25kg small bag

PRO-SB

Tempo for Prompt cement - 1 bottle per 25kg bag

It is important to use lime of the right strength for the right situation. Advice should be sought if you are unsure as the increase in speed and strength of set provided by hydraulic limes reduces the flexibility and vapour permeability of the mortar/ plaster/render.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

17


Innovation in

Lime Products Limecrete Floor Courtesy: www.limecrete.co.uk

Courtesy: Ward & Co, St John’s Church Cirencester

History We know that lime has been used since Roman Times either as mass foundation concretes or as lightweight concretes using a variety of aggregates combined with a wide range of pozzolans (fired materials) that help to achieve increased strength and speed of set. This meant that lime could be used in a much wider variety of applications than previously such as floors, vaults or domes.

Courtesy: C.Wyatt

Over the last decade, there has been a renewed interest in using lime for these applications again (after the domination of Portland Cement over the last 50 years or so). At T y-Mawr, ˆ we have been involved in researching and developing different systems for lightweight insulated floors. The T y-Mawr ˆ insulated limecrete floor comprises of three layers:

Flagstones

Edge Insulation

Tˆy-Mawr Bedding Mortar The glaster® Screed The Limecrete Slab

Breather Membrane

Breather Membrane The Insulating Layer/ Hardcore Not to scale

Levelled & Compacted Ground

The insulating layer

LECA (Lightweight Expanded Clay Aggregate)

18

This layer acts as a moisture break as well as providing the insulation for the floor. We offer two alternative materials for this layer recycled foamed glass aggregate or coated LECA (Lightweight Expanded Clay Aggregate). The recycled foamed glass offers some environmental advantages in that it is recycled (as opposed to depleting a natural, finite resource) and is fired at a lower temperature to LECA. It also has a significantly lower bulk density which offers energy and cost savings in terms of transport. It is also dimensionally stable (being angular) which makes it easier for those working with the materials (pouring the slab). Unlike the LECA, it does require a light ‘tamping’. LECA is the more economic alternative.

See www.lime.org.uk for technical data and latest prices

Recycled foamed glass

The limecrete slab The limecrete slab is a blend of hydraulic lime and a natural lightweight aggregate - a naturally fired aggregate, that was extensively used by the Romans. The slab is lightweight, vapour permeable and helps with thermal resistance. It is this slab layer which is the main load-bearing element in the floor, it is here that underfloor heating pipes, if required, are fixed.

The glaster® screed This layer is required if bedding thin tiles or if underfloor heating is to be incorporated into the floor, it acts as the thermal store for the heat which is distributed through the pipes. Again, in trying to improve the ‘green’ credentials of the floor, our glaster® screed is a blend of recycled glass aggregate (as opposed to screeding sand) and a hydraulic lime binder.

Floor finish The finish should be vapour permeable e.g. stone slabs or unsealed quarry tiles are ideal but please note they should be laid and pointed up with a lime mortar (we do a premixed bedding mortar - see page 24), timber flooring is also possible but should be laid loose on the floor for several weeks with the heating running on low before permanent fixing. An air gap must be maintained between the lime screed and the floor boards. This air gap is necessary to prevent timber from warping. However, it can affect the performance of underfloor heating systems and so needs careful consideration. Tel: 01874 611350


Innovation in

Lime Products Limecrete Floor BRE undertaking 'drop' testing on our limecrete floor

Why do I need a ‘vapour permeable’ floor?

“…we had to find a method of controlling the relative humidity levels within the building so that both the historic, and new oak, timberwork would not be adversely affected. The use of a controllable underfloor heating system combined with an insulated limecrete floor… was seen as an ideal way of minimising such problems, enabling the building to dry out gently and naturally, whilst moderating the internal environment for staff and visitors.”

Good eaves and well maintained rainwater goods Timber lintel Rain Evaporation of moisture

Internal lime plaster with breathable paint

Lime mortar pointing (or lime render with breathable paint)

EXTRACT FROM HERITAGE MAGAZINE BY DR GERALLT NASH, CURATOR, NATIONAL MUSEUM OF WALES, ST FAGANS.

Evaporation of moisture Evaporation of moisture

Land drain

Vapour Permeable floor

Why should it be insulated? = Helps to maintain equilibrium

Rising damp

The replacement of original ‘vapour permeable’ floors such as earth, stone slabs and even timber in old buildings with modern impervious damp proof membranes and dense concrete slabs potentially causes rising damp problems by creating a build up of water pressure beneath the membrane/ slab, the moisture will move sideways until it reaches the existing masonry where it will be able to rise within the wall structure. This situation is often exacerbated then by use of waterproof cementitous renders and tanking on the walls which traps the moisture within the masonry. Replacing ‘modern’ hard floors with this lightweight, vapour permeable floor can very quickly begin to remedy this type of ‘old house’ problem. “The floor's performance has been very promising. Though we have lowered it by a foot, there is no evidence of the serious damp problems that were evident throughout the year around the edges of the previous concrete floor.” PR, 2009 These qualities mean that our limecrete flooring system has been chosen by and successfully installed in significant historic building projects such as the Chapter House Floor in Worcester Cathedral, The Priory Church of St Mary and St Blaise, Chichester (12th Century), The Viscount Cowdray Estate, Surrey and by the National Museum and Galleries of Wales for the 13th Century Church at St Fagans, but it is just as useful in barns, farmhouses, terraces and cottages.

In a response to global warming, governments the world over are setting targets to ensure that buildings become much more energy efficient.

Courtesy: St Teilo’s Church, National Museum & Galleries of Wales

Part L of the current Building Regulations requires a U-Value (thermal transmittance) of 0.22 W/m2K for a new thermal element (ground bearing floor) and 0.25 W/m2K for a replacement thermal element. Unlike roofs, walls and intermediate floors, U–Value calculations for ground floors cannot be calculated in the normal manner with reference to the construction detail alone. Heat loss from ground floors depends upon the ratio of exposed floor perimeter to total floor area. It is therefore important to consider all elements if your floor is going to give you the best possible performance for your building. At T yˆ -Mawr, we design the floor build-up for your specific floor to help you with the Building Regulations*, all you need to do is complete a simple form available on www.lime.org.uk “Thanks for your help in organising the materials. I'm very satisfied with the results of the floors they were much easier than I thought to lay - and much cheaper than all the quotes I got from other people.” DEL, MILTON KEYNES. * In certain circumstances Part L Regulations do not apply to listed building works, please discuss this with the Conservation Officer in your Local Planning Authority.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

“a stiff but pourable mix!” Limecrete Channels Courtesy: www.limecrete.co.uk

tips 15% of heat loss in old buildings is through the floor! 19


Innovation in

Lime Products Limecrete Floor

Courtesy: Sapcote Building Contractors - The Chapter House Floor, Worcester Cathedral

Is it approved for use in buildings? T y-Mawr’s ˆ insulated limecrete flooring system has an LABC system-type approval to show that it can be capable of complying with current Building Regulations “subject to standard calculations being undertaken and supplied by T yˆ -Mawr for each scheme”. Factors that influence the design include: VBT mixer - ‘The Big Green Limecrete Machine’ used for bulk mixing and pouring of the limecrete slab. Courtesy: www.limecrete.co.uk

> > > > >

wall thickness and construction type floor area and perimeter length substrate type groundwater pressure radon protection (permeable membranes do not offer radon protection) > intended use > budget

Strength In general terms, the maximum strength that it is possible to achieve using a lime based mix is around 16-18 newtons/mm2. This exceeds the strengths needed in domestic construction by a considerable margin of safety. Using the British hydraulic lime, the tests we have commissioned show the following results: Age

Compressive Strength

tips Limecrete floors can be laid externally and in out-buildings at the right time of year or by using the right protection! 20

(days)

(N/mm2)

28

4.5

56

6.5

90

8.3

Method of determination of compressive strength of concrete cubes, BS 1881, Part 116: 1983

Please note, it will continue to gain strength over time.

See www.lime.org.uk for technical data and latest prices

Are contraction/expansion joints necessary? Our research has shown that the considerations applicable to cementitious concretes with regard to expansion joints are not applicable to lime based concretes. Hydraulic Lime generates little heat during the initial chemical hydraulic set and limecrete has a good flexural strength to compressive strength ratio. These properties mean that huge savings can be made in terms of the labour and equipment usually required to fabricate dowelled and induced contraction joints in cement concrete ground bearing slabs.

Can it be used with underfloor heating? If under floor heating is to be included in the floor system, then a further layer of material is specified – this is the glaster® screed layer which provides a thermal store for the heat distributed through the pipe work. Heat loss though the floor is controlled by the insulation layers beneath (as detailed above). No other insulation material is required beneath the screed but it is advised that you use suitable edge insulation where the screed meets any external un- insulated masonry.

Installation It is not unlike laying a conventional cementbased concrete floor; a contractor with experience in laying floors should be willing and able to install it. Excavation, layer depths and full installation instructions are supplied with the flooring components. T y-Mawr ˆ is renowned for its product support, providing telephone support and site visits. For larger floors, we have a range of mixers and silos available for hire to speed up the mixing process and work with with several experienced installation contractors, please contact us for details.

Tel: 01874 611350


Limecrete Floor Calculation Form St Leonard’s Church, Yarpole & Marches Conservation Services. Courtesy: Ian Godding

Contact Details Name/Company/Organisation: Address: Email:

Telephone:

Delivery Details Address: Post Code of Delivery Address: (Please Note – we cannot provide an accurate quotation for delivery without this information)

Delivery instructions Are there any access restrictions that would prevent access for lorries? (e.g narrow roads, bridges with weight restrictions, overhanging trees etc.) Do/Will you have offload available to be able to unload pallets and bulk bags? YES Do you have an area of hardstanding if we need to organise a tail-lift to offload your delivery? YES

■ ■

NO NO

■ ■

Floor Details (Please complete all sections. Please complete one form for each floor/room.) Type of building: Name/Type of room: Total Area of Floor :

m2

Thickness of external walls:

mm

(Dimensions of room:

X

metres)

Internal measurement of room perimeter excluding any partition walls (i.e length of external perimeter walls only): metres

■ YES ■

Are you installing underfloor heating? YES Is a screed layer required?

■ NO ■ NO

If Yes, what depth of screed do you require?

mm

(Please consult your underfloor heating supplier to determine suitability and screed depth required)

What U-Value are you trying to achieve? ………………………W/sq.m/K or Building Regulations

Laying the floor Would you like further information - on contractors in the delivery postcode area experienced in laying the limecrete floors? - on automatic batching/mixing lorries for the limecrete layers?

■ ■

Payment details: I intend to use/specify materials from Ty-Mawr ˆ

OR I intend to use/specify materials from elsewhere and therefore wish to pay for a calculation see www.lime.org.uk or call for current prices.

Please enclose cheque for £

(free of charge)

or please debit this amount from my card:

Card Number: Valid from:

Expiry Date:

Security Code:

Issue No:

or pay by BACS (Account Ty-Mawr ˆ Lime Ltd, Sort Code 40-26-21, Account No 81155431) Signature: Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

21


glaster® Introduction

Shrewsbury Theatre, Shropshire. Courtesy: Austin Smith Lord Architects, A.J.Philip Plastering

> can be coloured no need to paint. > produces a beautiful, unique aesthetic, (which can be varied by combining different colours of glass with natural pigments added to the lime).

Where? > most conventional backgrounds including stone, brick, block, wood wool and woodfibre boards. > as a mortar for building or pointing up stonework, brickwork or blocks. > externally as a render with a flat or roughcast finish. Courtesy : Adam Richards Architects, London

glaster® is a blend of British lime (binder) and recycled glass (aggregate), to make plasters, renders and mortars which are suitable for old buildings, ecological new builds or for those wanting to add a surface finish with a difference. Why lime? > has been successfully used in building for thousands of years. Courtesy : B.Sargent Pargetted Peacock in glaster®

> helps to control condensation and damp, thus creating a healthier building. > enables other sustainable building materials to be used such as wood, straw, woodfibre boards, clay and earth. > can be recycled at the end of its useful life and will allow other building components to potentially be reclaimed and reused. > is less damaging to the environment compared to its modern counterparts.

Henry with recycled glass aggregate - the same consistency and grading as sand

> internally as a plaster which can be painted, trowelled to a smooth finish or etched to reveal more glass.

Availability glaster® products are available in two premixed ranges: > traditional ‘ready-to-use’ wet premix – manufactured using traditional fat lime putty and recycled crushed glass. This product range is ideal for plastering internally or repairing old buildings where it is important to maintain the flexibility and vapour permeability of the building. It requires mixing, prior to application and is best used within a month of purchase. > dry hydraulic premix – manufactured using a moderately hydraulic lime and recycled glass which is suitable in most ‘usual’ conditions e.g. for stone, brick or block work as a render, plaster or mortar. This range is supplied as a dry premix to which water must be added on-site and then mixed in a mill/site mixer. Silos are also now available. Please call to discuss your requirements.

Why recycled glass?

The raw materials comply with:

> reduces the level of virgin sand extraction.

Glass Aggregate

BS EN 13139 2002

Natural Hydraulic Lime

BS EN 459 PART1 2001

> technically excellent with some performance advantages over sand.

Quick Lime

BS EN 459 PART 1 2001

> hand or spray application.

glaster® is manufactured by T y-Mawr ˆ in Wales in a facility whose quality management system is certified as meeting the requirements of ISO9001:2008

> develops a market for a waste product.

Why glaster®?

> building and occupant health benefits.

22

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


glaster® Plasters and Mortars Courtesy: Marchini Curran Associates & Softroom, duBoulay Contracts. Wahaca Mexican Restaurant, London

Courtesy: www.co2dl.co.uk

glaster® plaster glaster® plaster is suitable for internal plastering as well as external rendering. It is available in a ‘coloured’ range – see below – which can be trowelled smooth or etched to reveal more of the glass aggregate. Alternatively, it can be painted with a vapour permeable paint – see pages 48-61 for appropriate paints. We are also able to ‘tailor-mix’ a specific colour for you – please contact us to discuss your requirements.

Coloured range

NATURAL

CREAM

BURNT UMBER

PALE GREY

DEEP GREY

STONE GREEN

BRICK PINK

YELLOW OCHRE

DEEP ORANGE

Whilst every effort is made to ensure the accuracy of colour, due to the limitations in the print process, variations will occur. Please ask for an actual sample before specifying a colour. Internal glaster® plaster being applied to Ty-Mawr ˆ wood wool boards.

glaster® external roughcast Using a coarser grade of crushed glass and by spray applying the product – a unique render finish can quickly be applied to blockwork, masonry, brick and building boards. The increased surface area of such a finish helps the evaporation of moisture, it is therefore an extremely effective finish for very exposed elevations.

glaster® plaster/render

Approximate Coverage

1 tonne wet premix

36sqm per 9mm coat

20 litre bucket

0.9sqm per 9mm coat

1 tonne dry premix

45sqm per 9mm coat

20 litre bucket

1.1sqm per 9mm coat

80% Coloured glaster® (brick pink)

glaster® Plaster Product Selection Building Material

Site Type

Suggested Base Coats

Minimum Build-up

Suggested Top Coat - please note the top coat should be softer and thinner than previous coats

Minimum Build-up

Cob, Rammed Earth, Strawbale (haired base coats)

Internal

glaster® Fat Lime (unhaired) Plaster or glaster® Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

2 x 9mm 2 x 9mm 2 x 9mm

glaster® Fat Lime (unhaired) Plaster

1 x 9mm•

glaster® Dry Hydraulic Lime Plaster

1 x 9mm

glaster® Fat Lime (unhaired) Plaster or glaster® Dry Hydraulic Lime Plaster n/a

2 x 9mm 2 x 9mm

glaster® Fat Lime (unhaired) Plaster

1 x 9mm•

glaster® Fat Lime (unhaired) Plaster or glaster® Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

1 x 9mm 1 x 9mm 1 x 9mm

glaster® Fat Lime (unhaired) Plaster

1 x 9mm•

glaster® Dry Hydraulic Lime Plaster

1 x 9mm

glaster® Fat Lime (unhaired) Plaster or glaster®Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

1 x 9mm 1 x 9mm 2 x 9mm

glaster® Fat Lime (unhaired) Plaster

1 x 9mm•

External

Reed Mat, Reed Board (haired base coats)

Internal

Celenit Wood Wool Boards (mesh base coat)

Internal

Woodfibre Board (mesh base coat)

Internal

glaster® Dry Hydraulic Lime Plaster

1 x 9mm

Lath (internal only), Soft Stone

Internal External

glaster® Fat Lime (haired) Plaster glaster® Fat Lime (haired) Plaster or glaster® Dry Hydraulic Lime Plaster

2 x 9mm 2 x 9mm 2 x 9mm

glaster® Fat Lime (unhaired) Plaster glaster® Fat Lime (unhaired) Plaster or glaster® Dry Hydraulic Lime Plaster

1 x 9mm• 1 x 9mm 1 x 9mm

Soft Brick (mesh base coat)

Internal

glaster® Fat Lime (unhaired) Plaster or glaster® Dry Hydraulic Lime Plaster glaster® Fat Lime (unhaired) Plaster or glaster® Dry Hydraulic Lime Plaster

2 2 2 2

glaster® Fat Lime (unhaired) Plaster

1 x 9mm•

glaster® Fat Lime (unhaired) Plaster or glaster® Dry Hydraulic Lime Plaster

1 x 9mm 1 x 9mm

External

External

External

External

n/a

x x x x

9mm 9mm 9mm 9mm

Hard Stone (haired base coats)

Internal External

glaster® Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

2 x 9mm 2 x 9mm

glaster® Dry Hydraulic Lime Plaster glaster® Fat Lime (unhaired) Plaster

1 x 9mm• 1 x 9mm

Hard Engineering Brick, Concrete Blocks (mesh base coat)

Internal External

glaster® Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

2 x 9mm 2 x 9mm

glaster® Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

1 x 9mm• 1 x 9mm

Insulation Blocks* (haired base coat)

Internal External

glaster® Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

1 x 9mm 1 x 9mm

glaster® Dry Hydraulic Lime Plaster glaster® Dry Hydraulic Lime Plaster

1 x 9mm• 1 x 9mm

*Insulation blocks have very high suction, be careful to control suction. ˚Available in a coloured range and with different coloured glass, when available. • or for a fine finish add Fat Lime Internal Top Coat Plaster, 1 x 3mm coat

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

23


glaster® Plaster and Mortars

Coloured glaster® render “yellow ochre”

Courtesy : M.Rosenthal

glaster® plaster 1 tonne bulk bag

20 litre bucket

25kg small bag

GLA-FLUB GLA-FLHB GLA-FLC-CODE-B

GLA-FLUBU GLA-FLHBU GLA-FLC-CODE-BU

GLA-FLUSB GLA-FLHSB GLA-FLC-CODE-SB

GLA-DHB GLA-DHC-CODE-B

GLA-DHBU GLA-DHC-CODE-BU

N/A N/A

glaster® Fat Lime Fat Lime Unhaired * Fat Lime Haired* Fat Lime Coloured *

glaster® Dry Hydraulic Dry Hydraulic Lime** Dry Hydraulic Lime Coloured**

(* = made to order, best used within one month, ** - best used within 6 months).

glaster® mortar This mortar is ideal for building or pointing blockwork, masonry and brick. It is available as a dry premixed to which water must be carefully gauged on site. See table opposite for compressive strengths.

glaster® mortar

Approximate Coverage

1 tonne of wet premix

20 litre bucket dry premix

Pointing 40sqm (stone) 100sqm (brick) Building 4sqm (stone @ 450mm thick) Building 900 bricks Pointing 1sqm (stone) 2.5sqm (brick) Pointing 50sqm (stone) 100sqm (brick) Building 4.2sqm (stone @ 450mm thick) Building 1125 bricks Pointing 1.25sqm (stone) 2.75sqm (brick)

glaster® mortar

1 tonne bulk bag

20 litre bucket

25kg small bag

glaster® Fat Lime

GLA-FLUB

GLA-FLUBU

GLA-FLUSB

glaster® Dry Hydraulic

GLA-DHB

GLA-DHBU

N/A

25kg bag/20 litre bucket wet premix 1 tonne dry premix

glaster® roughcast external render

tips For every tonne of recycled glass used - 2 tonnes of virgin sand is preserved 24

Please note: For prices and further information, see www.lime.org.uk. Large order discounts are available for this product, please call for a quotation. For information about delivery - see page 80.

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


glaster® Floor Screed & Bedding Mortar

Polished screed Courtesy: www.limecrete.co.uk

glaster® screed

glaster® screed This product is perfect for use with our insulated limecrete floors, compatible with underfloor heating onto which flagstones, timber floors (ventilated) or unsealed tiles can be laid. Flagstones

Edge Insulation

Tˆy-Mawr Bedding Mortar The glaster® Screed The Limecrete Slab

Breather Membrane

Breather Membrane The Insulating Layer/ Hardcore Levelled & Compacted Ground

Not to scale

glaster® screed

Approximate Coverage

1 tonne dry premix 20 litre bucket dry premix

7sqm @ 50mm 0.2sqm @ 50mm

glaster® screed (dry premix)

1.87

NHL3.5

2.55

NHL5

4.04

LE • IN N AB

• S U S TAI N

NHL2

L

1.16

Please call us if you would like further information or assistance with a proposed project. We are able to offer production of samples, assistance with calculating quantities, application guides, NBS specification clauses, site supervision and/or training (onsite or at our training premises at Ty-Mawr) ˆ if required.

R

E PLAST

AT H A B

STRENGTH (N/mm2) (tested @ 90 days)

product support

RE

table of typical compressive strengths TYPE OF glaster® TYPICAL COMPRESSIVE

Traditional Fat Lime

ATIV E • OV awr Tyˆ -M

Courtesy: www.limecrete.co.uk

E

20 litre bucket GLA-SCBU

B

1 tonne bulk bag GLA-SCB

glaster® bedding/jointing/grouting mortar This is a premixed mortar made using hydraulic lime, recycled glass and a pozzolan for bedding or grouting/jointing tiles or flags (please note samples should always be tried to assess the suitability of the tile as they do vary). It can also be used for grouting rubble stone walls prior to pointing.

glaster® bedding mortar

20 litre bucket

HYD-BMBU

Approximate Coverage BEDDING – 20 litre bucket 2sqm @ 10mm thick combed bed. GROUTING/JOINTING – 20 litre bucket 15sqm of standard 10mm deep and 5mm wide tile joints when using 225mm sq tiles. Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

tips The glaster® range of products appeals to the environmentally minded as well as those looking for a more distinctive finish. 25


Lime Products

Wire Scratcher

Tools & Accessories Laths

Pozzolans Used to increase the setting power of mortars, plasters and renders. Brickdust and Blast Furnace Slag are currently available. Hessian It is extremely important to protect lime work from the rain, frost, direct sunlight and drying wind/breeze to allow carbonation to take place. Laths and Battens Riven (split) and sawn, oak and larch. Riven laths are stronger than sawn or softwood but all provide ideal backgrounds for lime plasters as they can be well wetted which assists the slow drying of the plaster giving a stronger key.

Reinforcing Hair Natural hair is supplied in tied bundles ready to be teased into the plaster mix - horse and goat hair are available. A synthetic fibre alternative is available for plasters that may need to be kept for longer than six weeks.

Bucket Trowel

Brickdust - add 5-25% 25Kg Bag of lime by volume. Blast Furnace Slag – add a 25Kg Bag maximum of 15% of lime by volume

ACC-GGBFSSB

ACC-HESR

Riven Oak Laths (4fts) 200 running ft per bundle Riven Oak Laths (3fts) 150 running ft per bundle Riven Oak Laths (2fts) 100 running ft per bundle Sawn Oak Laths (8fts) 400 running ft per bundle Sawn Oak Laths (4fts) 200 running ft per bundle Sawn Larch Laths (8fts) 400 running ft per bundle Sawn Larch Laths (4fts) 200 running ft per bundle Oak Battens (4fts) 38mm 13/20/25mm

ACC-LORV4 ACC-LORV3 ACC-LORV2 ACC-LOSW8 ACC-LOSW4 ACC-LLSW8 ACC-LLSW4 ACC-BO3813/20/25

Approximately 1.5kg of hair per tonne of plaster or 2 x 0.9kg bags of synthetic fibre

ACC-HH ACC-HG ACC-HSYN

Fine Casting Plaster Fine casting plaster is suitable for fibrous plasterwork including cornices, ceiling roses etc Mesh size 5mm x 10mm

Nail Gun Coil Nail gun ideal for fixing laths. Available for hire 2hp compressor minimum.

26

ACC-BDSB

1.83m x 50m = 91.5sqm per roll

Horse Hair Goat Hair Synthetic Fibre

Primal A water based acrylic emulsion for consolidating 10sqm per litre (varies enormously 1 litre plasterwork. May be syringed between layers with different backgrounds) of plaster to provide a strong consolidating layer. 5 litres

Jute Scrim A hessian scrim for reinforcing plaster. Supplied in rolls.

Churn Brush

See www.lime.org.uk for technical data and latest prices

ACC-PRI1 ACC-PRI5

25kg Bag

ACC-CAST

100mm x 100m 150mm x 200m

ACC-JS100 ACC-JS150

Nail gun purchase Nail gun hire 12,600 nails per box 400 nails per coil

ACC-TNG ACC-TNGH ACC-TSSRSBX ACC-TSSRSC

Tel: 01874 611350


Lime Products Tools & Ancillaries Pan Mixer

Render/Plaster Gun This easy to use gun enables up to 27sqm of render to be applied per hour. Compressor not supplied.

Wooden Float

Range of nozzle sizes supplied for different applications.

Render Gun

ACC-TRG

Render Gun Hire

ACC-HRG

Mortar Mills A mortar mill should be used to mix up mortars or plasters or to knock up pre-mixed mortars or plasters prior to use.

Hire rates vary depending on mill size and period of hire.

Static diesel

ACC-HMMSD

Pan Mixer This forced-action pan mixer gives exceptional value for money. It is ideal for knocking up mortars and plasters. The compact style means it is ideal for almost every site - see above.

Capacity 110 litres. Width 68cm Depth 97cm Height 108cm Weight 100kg

Pan Mixer

ACC-TPM

Pan Mixer Hire

ACC-HPM

Alloy Hawk non-slip - 12” x 12” Block Brush (Economic Maxi) Block Brush (Limewashing) Brick Hammer Bucket Trowel - 7”- see above Churn Brush - see above Finger Trowel - 10mm Finger Trowel - 13mm Gauging Trowel - 7” Grouting Float (fine) Harling Trowel - 165mm x 165mm Inside Corner Trowel Long Handle Churn Brush Mortar Pick Double Pointed Outside Corner Trowel Orange Sponge Float - 11” x 4 1/2” Paint/Plaster Mixer Bit for Drill - 420mm/620mm Plasterers Brush (Nail Board) Plasterers Hawk - 13” x 13” - now made from natural resins Plasterers Trowel - 280mm x120mm Stainless Steel Pointing Hawk - 6” - now made from natural resins Pointing Trowel - 5” Safety Glasses / Goggles Trowel and Square Tool - 3/4” Vinyl Gloves - Box of 100 Wire Scratcher - see above Wooden Cross Grained Float for flat work - see above Wooden Straight Grained Float for curved/uneven work - see above

ACC-TAH ACC-TPB17BB ACC-TMB4 ACC-TBH ACC-TBT ACC-TCB ACC-TFT10 ACC-TFT13 ACC-TGT ACC-TGFF ACC-THT ACC-TICT ACC-TLH ACC-TMPDP ACC-TOCT ACC-TOSF ACC-TPMB420/620 ACC-TNB ACC-TPPH ACC-TPT ACC-TPOH ACC-TPT5 ACC-TG ACC-TTS ACC-TVG ACC-TWS ACC-TWCGF ACC-TWSGF

Other specialist tools are available, please see www.lime.org.uk

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

27


Lime Products Limewash Courtesy: The Dragon Inn Crickhowell

Ty-Mawr ˆ Limewash A traditional mineral paint made from fat lime putty. It “sets” when exposed to carbon dioxide in the air. It is the ideal paint to use on lime plaster, masonry, brick etc as it is highly vapour permeable. It has a matt finish and a 'depth' which most modern paints lack. It reflects light and appears to 'glow' in sunlight.

In some circumstances, it may be necessary to help limewash bind (eg very exposed conditions). Casein, tallow or raw linseed oil can be added for this purpose, but remember that any additive may compromise the 'vapour permeablity' of limewash to some extent. Please note we do recommend the addition of PVA.

Courtesy: Sker House

T yˆ -Mawr Limewash is available as a creamy off-white or a bright white to which pigments can be added. It is also available in a range of colours - see below, or we can tailor-mix a specific colour for you - see page 29. A coloured limewash tends to have a slight colour variation across the surface; this slight blotchy effect is quite normal and is generally considered to be part of its beauty. The adhesion of limewash relies on suction from the surface to which it is applied. It sticks well to lime plasters and renders, stone, brick and similar materials, but does not adhere so well to modern materials and finishes - see pages 60-61 for alternatives.

Block Brushes for limewashing- see www.lime.org.uk

Depending on the condition of the surface, it may be wise to apply a shelter coat. A shelter coat will provide an excellent ‘key’ for the subsequent coats of limewash as often, when limewashing over bare stone, especially if the stone is hard and non-porous, it can be difficult to get pure limewash to stick and/or remain on the surface.

20 litre bucket 10 litre bucket Off-white LIM-LW20 LIM-LW10 Bright White LIM-LWW20 LIM-LWW10 Both can be made to order with tallow, linseed or casein. Off-white Shelter Coat LIM-LWSC20 LIM-LWSC10 Bright White Shelter Coat LIM-LWWSC20 LIM-LWWSC10

Ty-Mawr ˆ Colour Range - see below 20 litre, 10 litre, 1 litre

LIM-LWTRCODE

For other breathable paints - see pages 4872.

Approximate Coverage - three coats (minimum). 3-4 square metres per 1 litre per coat.

28

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Lime Products Pigments Courtesy: Penpont Estate

Pigments

Ynys M么n 150ml PIG-YNYS-150 1 litre PIG-YNYS-1L

Yellow Ochre PIG-YO-150 PIG-YO-1L

Strong Yellow PIG-SY-150 PIG-SY-1L

Warm Yellow Ochre PIG-WYO-150 PIG-WYO-1L

These powder pigments, can be added to our limewash (see page 28) and casein paints (see page 56). These colours are approximate - it is advisable to purchase samples if you require an accurate representation. By combining pigments or varying the quantity of pigment used, the colour range is infinite.

Paint Matching and Mixing Raw Sienna 150ml PIG-RS-150 1 litre PIG-RS-1L

Marigold PIG-M-150 PIG-M-1L

Burnt Umber PIG-BU-150 PIG-BU-1L

Olive PIG-OL-150 PIG-OL-1L

We offer a paint matching service (within the limits of our pigments) and are able to tailor mix paints to achieve the colour you are looking for. Please call to discuss your requirements. Paint Matching

LIM-PM

(charge varies with complexity) Mushroom 150ml PIG-MU-150 1 litre PIG-MU-1L

Stone Green PIG-SG-150 PIG-SG-1L

Strong Red PIG-SR-150 PIG-SR-1L

Plum PIG-PL-150 PIG-PL-1L

Tailor Mixing

LIM-PTM

(charge varies with complexity) While every effort is made to ensure the accuracy of colour, due to the limitations in the print process variations may occur. We recommend the purchase of sample pots for testing in situ.

Ultramarine Blue 150ml PIG-UMB-150 1 litre PIG-UMB-1L

Green PIG-GR-150 PIG-GR-1L

Black PIG-BLK-150 PIG-BLK-1L

These colours have been achieved using 25ml of pigment per litre of natural emulsion (see pages 51- 52). The quantity of pigment required varies depending on the intensity of the colour required. Limewash requires more pigment than any other paint. As a very rough guide, 500ml - 1 litre of pigment is usual in a 20 litre bucket of limewash. Bulk quantities are available, please call for 25kg bag price.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

tips Pigmented limewash and casein paints dry approx 50% lighter on the wall. 29


Boards & Insulation Timber Frame Construction Courtesy: Mr & Mrs Hogg

Buildings and the Environment Buildings have a profound effect on our environment; more and more of our clients are recognising this and hence the rationale for using environmentally-friendly building and decorating materials. The following help to illustrate this:

Ty-Mawr’s ˆ mobile demonstration house at the NEC.

> buildings are responsible for a large proportion of Carbon Dioxide emissions in this country - 50% results from energy used in buildings, 10% from their construction.

> The Environment Agency’s trend data shows that around 2.5 million tonnes of C&D (Construction and Demolition) waste were handled in 2007 by waste facilities in Wales. Nearly half of this waste was landfilled, and only eight years of landfill space remains in Wales. > the development, use and maintenance of buildings result in the consumption of 6 tonnes of building materials per person per year in the UK. If we all choose low impact materials, we could really make an enormous difference! Here are some suggested applications using our sustainable building materials:

New Timber Frame - Increasingly, self builders as well as housing developers are looking for more sustainable, practical solutions for new builds not only to meet government targets to reduce the impact of buildings on the environment but also because they recognise that it is possible to have improved comfort levels in these constructions creating healthier buildings as well as saving energy costs.

Benefits Externally - 25mm Celenit Wood Wool Board Internally - 15mm Celenit Wood Wool Board U-Value - 0.27W/(m2K)

140mm CLS Timber fully filled with Ty-Mawr ˆ THERMAFLEECE®, Sheep’s Wool Insulation/ Edenbloc35 slabs/Thermafleece Hemp/Homatherm FlexCL/Homatherm Mais

Externally - Timber cladding, Gutex Mutiplextop 22mm Internally - 15mm Celenit Wood Wool Board U-Value - 0.24W/(m2K)

> excellent thermal and acoustic performance, achieving current building regulations > reduced on-going energy costs > comprises of natural and sustainable building material components > creates a wall that is ‘vapour permeable’ which allows the building to actively control moisture which leads to a healthier living environment > resists spread of fire

Externally - Gutex Thermowall 40mm Internally - 15mm Celenit Wood Wool Board U-Value - 0.24W/(m2K)

Racking board (if applicable) and Intello plus intelligent vapour control (fully taped) membrane

> excellent environmental credentials > local Welsh wool and British plasters minimising energy used in transport > incorporates plasters made from plant fibres or recycled aggregates instead of sand

Externally - Gutex Thermowall 80mm Internally - 15mm Celenit Wood Wool Board U-Value - 0.18W/(m2K)

Please call us for a U-Value calculation for your project! External Finishes - Hydraulic Lime Render/glaster©

30

Internal Finishes - Lime Plaster, Lime Hemp Plaster or glaster©

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Boards & Insulation Warm Roof Timber frame new build, Courtesy: Bere Architects

There are lots of ways to make old buildings more energy efficient using our materials- saving money on fuel as well as reducing carbon dioxide emissions, hence reducing the environmental footprint of the building.

There are very many insulation materials on the market but some are damaging to the environment in their production as well as potentially causing landfill/disposal problems for the future, hence we have explored, produce and/or supply one of the largest ranges of environmentally-friendly insulation materials.

Energy Efficiency in Old Buildings Warm roof Courtesy: Elly Bailey

25% through the roof

45% through walls

able vail A Now

Call for brochure 01874 611350.

15% through draughts and windows

15% through floor

Warm Roof - In existing buildings, 25% of heat is said to be lost through the roof, the warm roof has become increasingly popular particularly in barn conversions or in situations where the original roof is being replaced. It is also widely used in new builds. Gutex Ultratherm 60mm Wood Fibre Insulating Sarking Board 100mm rafters fully filled with Tˆy-Mawr THERMAFLEECE® Sheep’s Wool Insulation/Edenbloc 35 Slabs/ Thermafleece Hemp Insulation Counter batten tiles (same a existing warm roof)

Gutex Thermosafe - wd 60mm 25mm Celenit Wood Wool and Lime Plaster U-Value 0.18W/(m2K) Tˆy-Mawr THERMAFLEECE® 70mm in counter perlins or rafter hangers 25mm Celenit Wood Wool and Lime Plaster U-Value 0.18W/(m2K)

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

tips Heating our homes is one of the most energy hungry things we do, so good insulation is one of the best ways to reduce our CARBON DIOXIDE emissions. 31


Boards & Insulation Solid Wall Insulation - External EWI - Gutex woodfibre board

Solid Wall Insulation - In the UK, 1 in 4 of our homes has ‘solid’ walls, around 45% of the heat lost in an un-insulated solid walled home is through the walls. In the drive towards energy efficiency and carbon savings, we are all being encouraged to insulate our homes but solid walled buildings are designed to allow moisture to evaporate and therefore any insulation solution must work in the same way as the building to avoid the problems that we now know are associated with trapped moisture. If all solid walls were insulated there would be a massive carbon dioxide saving of 16,000,000 tonnes per annum (equivalent to the emissions from 2.7 million homes for a year). Type of solid wall insulation

Saving per year

CO2 saved per year

Internal

Around £380

2 tonnes

External

£400

2.1 tonnes

How do I insulate solid walls? There are two methods of insulating solid walls: externally and internally. > External Wall Insulation - is installed from the outside effectively wrapping the building. This type of installation method will change the physical appearance of the building (which will usually require planning permission) and will necessitate the removal of rainwater goods and may require adaptation of the roof and wall junctions as well as window and door openings as the wall is effectively being made thicker. It is possible to use Ty-Mawr ˆ lime hemp plaster externally with the correct detailing, protection and environment to carbonate but it should have a standard lime render/glaster® top coat. The lime hemp will provide some insulation and is less disruptive than the board system. It will also help to improve air tightness – see our lime hemp insulating plaster on pages 13-15.

*Estimated figures based on insulating a gas-heated, semidetached home with three bedrooms. The Energy Saving Trust

Please call us for technical sheets or visit www.lime.org.uk for further information and current pricing.

Solid wall (500mm=1.9 W/m2K)

tips At Ty-Mawr, ˆ we are able to undertake both static and dynamic modelling of proposed build-ups of systems to assess the potential condensation risk and impact on performance for your building. 32

Also applicable to solid brick wall and timber-framed buildings – values will vary, please call for calculations. glaster® or standard lime render can be used for top coats. Alternatively, the board system could be timber clad which would require counter battens and the boards would require mechanical fixings.

Woodfibre Board (80mm=0.39 W/m2K)

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Boards & Insulation Solid Wall Insulation - Internal Lime hemp plaster Courtesy: S.Frost

> Internal Wall Insulation - is applied from the inside and necessitates the removal of all fittings e.g. radiators, skirting boards, architraves etc. The options shown (below) are graphical representations of some of our solutions but please contact us should you require an actual calculation and condensation risk analysis undertaken for your specific situation. Please note your architect should then consider any problems of the site and

any detailing required such as use of a breather membrane. The boards can carry various plasters including our lime plasters, glaster® and lime hemp products, the application guides must be followed for successful results – see www.lime.org.uk or call us for details. The components in these options are described in more detail on the following pages.

Options Solid wall (500mm=1.9 W/m2K)

Improved thermal value, reduced energy bills, reduced carbon footprint

Tˆy-Mawr Lime Hemp Plaster (50mm=1.2 W/m2K)

Calsitherm Calcium Silicate Board (30mm=0.77 W/m2K)

Woodfibre Board (40mm=0.64 W/m2K)

Woodfibre Board (100mm=0.3 W/m2K)

Tˆy-Mawr Thermafleece Wool or Hemp Insulation (100mm) & Wood Wool Board (15mm=0.30 W/m2K)

Edenbloc35 Composite Board (100mm=0.26 W/m2K)

These figures are for illustrative purposes only – different walls perform differently and various studies show that this data in most software is not always accurate when it comes to stone walls! Please contact us to discuss your specific project. This is a highly vapour permeable plaster made from lime putty and hemp fibre instead of sand, it is therefore more sustainable than other plasters. It is the most economic and easy to apply (one trade) IWI solution. It will save you energy and importantly, help to achieve air tightness in your building which will improve comfort levels (10-15% of heat loss in old buildings is through draughts and air leaks). This option also adds to the thermal mass* and allows you to continue to benefit from it which will keep your building cool in summer and warm in winter. It is the least disruptive as you will not necessarily need to move skirting boards etc. It is the least effective thermally and will not achieve building regulations but it has significant advantages which makes a popular solution for our clients. It has a very appropriate aesthetic and feel suitable for old buildings. This board is applied directly to the lime plaster (no studding out required etc) using a proprietary mortar, but the surface must be even. It is hygroscopic thus helping to regulate humidity within the room and inhibits mould growth. It is the ‘thinnest’ of our solutions meaning that the least amount of space is lost internally. Just 30mm can reduce your energy consumption by 40-50%. Reveal boards are available to cope with window openings and sections can be made to order to accommodate plaster covings etc. It is easy to cut and work with. It is the most expensive in terms of material cost of our options but there are labour savings on-site. We have various woodfibre boards for this application – see pages 38-41 which can easily meet or exceed current building regulations requirements. It requires an even background of lime plaster and can be adhered using a lime plaster. It is vapour permeable and so allows the safe passage of moisture which is essential for solid wall insulation. It isolates the thermal mass from the room but it means that the room will heat up quicker. Various thicknesses are available which will give different overall thermal values for the walls, as well as reveal boards to cope with window and door openings. Joints and fixings must be well executed to avoid thermal bridging. We have various woodfibre boards for this application – see pages 38-41 which can easily meet or exceed current building regulations requirements. It requires an even background of lime plaster and can be adhered using a lime plaster. It is vapour permeable and so allows the safe passage of moisture which is essential for solid wall insulation. It isolates the thermal mass from the room but it means that the room will heat up quicker. Various thicknesses are available which will give different overall thermal values for the walls, as well as reveal boards to cope with window and door openings. Joints and fixings must be well executed to avoid thermal bridging. This system is the most economic in terms of materials of all of the options that can meet building regulations (presented here). It is more involved in its detailing and installation, studding out is required and great care must be taken to avoid any thermal bridging. It will make a huge contribution to comfort levels and energy costs. It again isolates the thermal mass but will allow the room to warm up quicker. It is vapour permeable, a breather membrane should be used on the cold side of the insulation if there are high moisture levels in the wall. Call for advice!

This newly launched semi rigid boarded product can be easily cut and fixed to level plastered walls. It can be finished with a wood wool board and lime plaster. Although the material costs are higher than the other options, it offers a solution that complies with building regulations, is British and has the best thermal performance of any of the ecological boards. It has no glues and is considered to be one of the most sustainable solutions. It gives an 86% improvement but again isolates any benefit from the thermal mass. Careful attention to detailing and fixing is again required to avoid thermal bridging.

*Thick, solid wall buildings have high thermal capacities which means that they absorb heat slowly over time and release it relatively slowly as the surroundings cool down. This can have a significant stabilising effect on the internal environment, keeping the building cool in summer and warm in winter.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

33


Boards & Insulation Summary Table Calsitherm at Roch Castle: Courtesy Keith Griffiths Declared Thermal Reaction to Fire Vapour Denisty Conductivity Class (A to E) or permeability (k) Value (lower Fire Resistance (lower the the number the (EI or F rating) number better) the better) BOARDS AND PLASTER BASES - INTERNAL WALLS AND CEILINGS Traditional N/A N/A N/A N/A Laths Reedmat Reedboard

N/A 0.055

Celenit Wood Wool Boards

0.064

Calsitherm Calcium Silicate Board Gutex Thermoroom Woodfibre Board Homatherm ID-Q11 standard

Courtesy: Royston Davies Conservation Builders www.roystondavies.co.uk

Format

Riven Oak (4ft, 3ft, 2ft), 26 Sawn Oak (8ft, 4ft), Sawn Larch (8ft, 4ft) 2m x 5m Rolls 36 20mm - 1m x 2m 36

N/A 2

N/A 255Kg/m3 Boards

5

15mm - 533Kg/m3 15mm Walls, 25mm - 460Kg/m3 25mm Ceilings, 2400mm x 60mm

0.059

N/A Reed Boards with 18mm noncombustible plaster finish are fire resistant in accordance with DIN 4102 25mm Board with 15mm Lime Plaster is rated as EI45 to BS EN 1362-1 A1 - non flammable

6

200 - 240Kg/m3

0.038

E

3

130Kg/m3

0.038

E

3

140Kg/m3

20/40/60/80mm 1250mm x 600mm

Pavadentro

0.042

E

5

180Kg/m3

60/80/100mm 1020mm x 600mm

Pavatex Profil

0.043

E

5

180Kg/m3

40/60mm 1020mm x 600mm

200Kg/m3

18/22/28/35mm 2500mm x 750mm

50/60/80/100/120mm 1780mm x 600mm 20/40/60/80/100/120/ 140mm 1270mm x 60mm 22/35/52/60/80/ 100/120mm 2500mm or 1800mm x 610mm 22mm, 35mm 2500mm x 770mm

SARKING & SHEATHING BOARDS ALL TONGUE & GROOVE EDGED Gutex Multiplex 0.044 E 3 Top

30/50mm suitable for masonry only - 1250mm x 500mm 20/40/60/80mm 1780mm x 600mm

Gutex Ultratherm Gutex Multitherm

0.044

E

3

190Kg/m3

0.039

E

3

140Kg/m3

Homatherm UD-Q11 protect

0.043

E

3

190Kg/m3

Pavatex Isolair

0.047

E

5

240Kg/m3

Pavatherm Plus

0.043

E

5

180Kg/m3

N/A

N/A

N/A

5

3

160Kg/m3

20-160mm 1250mm x 590mm

EXTERNAL WALLS Traditional Laths N/A

60/80/100mm 1580mm x 780mm

0.064

Gutex Thermowall

0.039

25mm Board with 15mm Lime Plaster is rated as EI45 to BS EN 1362-1 E

Gutex Thermowall-gf

0.043

E

3

190Kg/m3

40-60mm 1276mm x 576mm

Pavatex Diffutherm

0.042

E

5

180Kg/m3

60/80/100mm 1300mm x 790mm

See www.lime.org.uk for technical data and latest prices

Traditional background for lime plasters providing a good key, strength (riven is strongest) and can be wetted prior to plastering to aid carbonation. Economic alternative to lathing, easy to fit but no insulation. Economic alternative to lathing providing some insulation. Ideal for curved walls but not always easy to cut to shape at edges. Excellent vapour permeability.

36-37

Highly recommended for use with lime plasters for partition walls and ceilings providing excellent acoustic as well as some thermal insulation. Economic alternative to plasterboard! Water proof and freeze proof. 46 This board is directly applied to the wall using kp-mortar, n.b. it must have a flat lime (not gypsum) plaster. Highly hygroscopic (assist with regulating humidity) and inhibits mould growth. 39 Woodfibre board manufactured using a dry process (no glue layers), ideal for the retrofit insulation of interior walls on older buildings and insulating under the rafters for interior plaster application - see page 6 for plaster build-ups. 40-41 Ideal for the interior insulation of walls in masonry, brick and wood construction. Its hygrothermal properties will protect the building fabric, creates healthy comfortable living environment. See This innovative new woodfibre insulation board is targeted website specifically at the repair and refurbishment markets. The Pavadentro board has been created to effectively insulate external walls on the inside, while greatly reducing the risk of condensation build up within the fabric of the building. See Woodfibre board for insulating floors or internal walls with website plaster. 39

Superior sarking board for new roofs, roof refurbishments and external wall insulation behind a ventilated faรงade. High density and has a unique tongue and groove format for increased wind and water tightness. Effective protection against heat loss in winter and heat protection in summer months. Recommended for our warm roof system (see page 31). 39 As above but seamlessly combined with an insulating board for better insulation. 39 A moisture resistant insulating woodfibre board with single-ply homogenous construction, is an ideal sheathing board for exterior walls under faรงade facing. 40-41 For over rafter applications, the boards must be installed in a dry condition across the whole surface and be free of gaps. It can be used as emergency roofing (temporary covering) and exposed to weather for up to ten weeks. See For use over rafters as an insulating sarking board. Has BBA website certification for use on pitched roofs. It is made from 95% wood fibre from sustainable sources, contains PVA but no wood preservatives. See As above with better insulation. website

Riven Oak (4ft, 3 ft, 2ft), 26 Sawn Oak (8ft, 4ft), Sawn Larch (8ft, 4ft) 50mm - 360Kg/m3 50mm 36-37 2400mm x 600mm

Celenit Wood Wool Boards

34

Further Comments info on page

Traditional background for lime plasters providing a good key, strength (riven is strongest) and can be wetted prior to plastering to aid carbonation. Highly recommended for use with lime plasters providing excellent acoustic as well as some thermal insulation. Economic alternative to plasterboard!

39

A single-ply, glue-free board, giving effective sound and thermal insulation for external application on masonry walls and fully supported timber. Excellent vapour pearmeability. 39 A single-ply, tongue and grooved, glue-free board giving effective sound and thermal insulation for external application on timber-frame walls. Excellent vapour pearmeability. See Ideal for insulating solid walls as breathable but can also be website used on existing cavity walling and on new build masonry construction. Excellent acoustic performance ensuring increased flanking sound protection. Tongue and grooved edges. cont.

Tel: 01874 611350


Boards & Insulation Summary Table Courtesy: Royston Davies Conservation Builders www.roystondavies.co.uk

Courtesy: www.nickmilesbuildingcontractors.co.uk Declared Thermal Conductivity (k) Value (lower the number the better) EXTERNAL WALLS (continued) Homatherm Energie 0.039 PlusMassive (FD-Q11 standard) Homatherm 0.043 EnergiePlus:comfort (FD-Q11 protect)

Reaction to Fire Class (A to E) or Fire Resistance (EI or F rating)

Vapour permeability (lower the number the better)

Denisty

Format

Further Comments info on page

E

3

140Kg/m3

22-160mm - 1250mm or 845mm x 600mm

40-41

E

3

160-185Kg/m3 Tongued and Gooved - 40-120mm - 1300mm x 590mm

40-41

BOARD INSULATION FOR FLOORS Gutex 0.042 Thermosafe-wd

E

3

140Kg/m3

Tongued and Grooved 38-39 - 40mm and 100mm

Pavatex Profil

0.043

E

5

180Kg/m3

40/60mm 102mm x 600mm

Homatherm HDP-Q11 protect

0.039

E

3

140Kg/m3

40/120mm 1250mm x 600mm

Highly resistent to compressive forces and so ideal for insulation under screed and floor coverings, and above and between rafter insulation and for the insulation of interior ceilings. See Ideal for insulating solid floors where a solid wood or dry fix website tile system is specified. They are interlocking and interlocking timber battens are available which are just 'shy' of the surface below to reduce the cold bridging through this element. In acoustic floors it also reduces impact sound transmission. 40-41 Extra robust board so ideal for under screeds but can also be used for attic and roof insulation. Manufatured using the dry method.

FLEXIBLE INSULATION T y-Mawr ˆ 0.038 Thermafleece

BS 5803-4

1-2

23Kg/m3

50/75/100mm - 400/ 600mm x 1200mm Batts

Thermafleece Ecoroll

0.039

BS 5803-4

1-2

20Kg/m3

Thermafleece TF35 0.035

BS 5803-4

1-2

30Kg/m3

50/75/100/140/ 150mm x 370mm or 570mm wide. Roll lengths vary 50/70mm - 370 & 570mm x 1200mm Batts

Thermafleece Hemp

0.040

BS 5803-4

1-2

28Kg/m3

50/70mm - 370 & 570mm x 1200mm Batts

Pavaflex

0.038

E

5

55Kg/m3

50/80/100/140mm thick x 375 & 575mm x 1350mm length

Homatherm Holzflex Mais

0.037

E

1

55Kg/m3

FlexCL Recycled Newpaper

0.039

B2

1

70Kg/m3

40/60/80/100/120/ 140/160/180/200mm - 1250mm x 570mm Batts. 60/90/100/120/140/ 160/180mm - 625mm x 1200mm Batts.

Edenbloc 35

0.035

E

5

45Kg/m3

50/60/75/100mm 600m x1200mm Custom thickness up to 300mm

Glue-free woodfibre boards, especially suitable for the thermal upgrade of old solid walls - manufactured in small size and thickness up to 160mm thickness. Butt edged. Especially for timber frame construction with tongue and grooved edges. Single-layer of up to 120mm, highly insulating with low thermal conductivity. The installation can take place directly on the studding.

42-43

Excellent thermal and acoustic insulation. Slabs that fit securely between rafters, joists and studs. Contains 85% Welsh wool and 15% polyester binder with a high recycled content. BBA-approved and certified to last the life of the building. Ours is exclusively made with Welsh wool to help support our local, rural communities and to minimise road miles 42-46 THERMAFLEECE EcoRoll is a low density wool based insulation roll that is quick and easy to install. It contains 75% Sheep’s wool, 15% recycled polyester and 10% polyester binder with a high recycled content. 42-44 This is a high density wool based insulation designed to meet higher energy efficiency requirements. No quilted wool-based insulation meets the performance set by THERMAFLEECE TF35. For use in roofs – lofts & warm roof, walls – timber frame & solid wall and floors – suspended ground floor & between floors. 45 Hemp is a fast-growing, low-impact plant crop that produces fine fibres suitable for insulation. THERMAFLEECE Hemp, a blend of 60% UK grown hemp and recycled polyester, is a safe, efficient and durable alternative when plant fibres are the preferred choice. See Can be used in loft spaces, between rafters and within walls website and floors in new build, renovation and conservation projects. It is not suitable for in-cavity wall insulation or under ground floor slabs. Life Cycle Assessment analysis shows there is more carbon locked up within Pavaflex than is released in production, allowing the insulation to be considered carbon negative. 41 Highly recommended from an ecological point of view as glue free - using 100% natural starch as the binder. Semi-rigid woodfibre, friction-fit insulation can be inserted between rafters and studs, wood frame spaces and the service layers. 41 Flexible batt form, made from recycled newspaper and recycled jute sacking. The material is treated with borax to resist insects and to make the insulation fire-resistant. The material is very comfortable to work with, and can be readily cut to fit where necessary. Installation is safe and easy, protecting the health of both installers and building occupants. 45 A natural, low density rigid insulation that can be used in many internal situations including wall lining, under rafters, between rafters and timber studs to provide first class thermal insulation. It provides a sustainable alternative to synthetic foam materials such polystyrene and is ideal in situations where thermal performance and breathability are paramount. It has 60% recycled content and contains no synthetic binders, substantially reducing environmental impact and the need to rely on fossil derived materials. It has the ability to eliminate thermal bridging factors which can improve insulation performance by as much as 30% compared to other natural insulation.

Disclaimer – information in this table is provided for guidance only, it is essential to consult the manufacturers technical data sheets to check suitability, figures, sizes and technical performance, prior to specifying/ordering – all available on www.lime.org.uk.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

35


Boards & Insulation Plaster Carriers & Boards Celenit Wood Wool Boards

Reed Mat - is lathing supplied in a roll. Reeds from managed reed beds are laid parallel and bound using narrow gauge zinc wire to form a long sheet. It is suitable for internal use as a base for plastering on walls and ceilings. It can be used against a solid background or over studs or joists as a practical alternative lining material to gypsum plasterboard and lath-and-plaster. Reed mats are particularly suited to using with lime, clay or gypsum plasters in building restoration and new-build. 2m x 5m (10sqm per mat)

• SUS

E

CO

DED

N

RE

awr Tyˆ -Mucts Prod

MME

BD-RM25

Reed Board – is a semi-rigid building board. It is made from natural reeds laid parallel and tightly bound using thin gauge galvanised wire.

IN A BL TA

It is suitable for internal use as a base for plastering on walls and ceilings. It can be used against a solid background or over studs or joists as a practical alternative lining material to gypsum plasterboard and lath-and-plaster. The 20mm board can be used as a curved backing for plaster. It can also be used unfinished to create feature walls, as an insulation board or to act as permanent formwork. It can be used externally in landscaping schemes to form natural partitions. 20mm – 1m x 2m (2sqm per board)

36

Celenit is one of Europe’s leading manufacturers and suppliers of environmentally excellent insulation made from mineralised fir wood-wool bound. To guarantee constant quality, Celenit has developed probably the most innovative production plants in Europe. The panels produced conform to European UNI EN 13168 and are CE marked. The quality management system operated by Celenit is in compliance with the standard UNI EN ISO 9001:2008 (certificate No. 1351). These Wood Wool Boards have been used in buildings for over 40 years and have proved to be a very popular product as a lime carrier over the 15 years in which we have been promoting and selling them for use with our products. Unlike most other wood wool boards, these are waterproof, freeze-proof and damp-proof, making them appropriate for use in even the most severe temperature conditions. They are particularly popular as a background for our glaster® see pages 22-24 and Lime Hemp plasters see pages 13-15. It is, however, important to follow the application guides provided for a successful render/plaster finish.

Benefits: > an environmentally friendly alternative to plasterboard. > assists in achieving insulation values (heat and acoustic) and meeting requirements. > compatible with vapour pearmeable structures – absorb and release moisture naturally. > unlimited lifespan. > contains no harmful substances but are vermin and fungus resistant. > robust but easy to cut and work with on-site. > timber from sustainably managed forests (PCFC certfificate). > now available in a range of natural colours (see page 37) for partitions and ceilings.

BD-RB20

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Boards & Insulation Wood Wool Boards

Celenit Wood Wool Boards

Washer fixing

Internal Walls

Internal Walls/Ceilings

External Walls

15mm - 0.6m x 2.4m (130 boards per oversized pallet) BD-TPB-15

25mm - 0.6m x 2.4m (88 boards per oversized pallet) BD-TPB-25

50mm - 0.6m x 2.4m (44 boards per oversized pallet) BD-TPB-50

Washer Fixings 100 washers/box BD-FIX-100

T y-Mawr ˆ - Render Mesh 1m x 50m (4mm squares) BD-TRM-150-4

1m x 50m (10mm squares) BD-TRM-150-10

Celenit Ceiling and Partition Panels Celenit panels painted with potassium silicate biological colours, certified by naturalplusÂŽ for false ceilings and partitions.

tips Highly popular as a tried and tested plaster carrier for use in older properties instead of plasterboard or for infill panels in old or new timber framed buildings.

Please note samples are available but they are manufactured to order, please allow 4 weeks.

NEW

Various panel formats are available with edge detailing to suit fixing/hanging systems. Please call for further information.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

37


Boards & Insulation Gutex Wood Fibreboards

Benefits: > Low thermal conductivity, which guarantees excellent protection in winter against cold. > Highest possible volumetric heat capacity for the best protection against heat in summer. > Superb vapour permeable design, which regulates humidity and produces pleasant interior living conditions. > Unsurpassed absorption of impact and structural noise. Courtesy: Mike Whitefield Consrtuction Ltd.

Gutex has been manufacturing insulating boards from wood for over 75 years in the Black Forest, Germany. Today, they are a leader in innovative, environment-friendly manufacturing, capable of producing highly superior single-ply, wood fibreboard insulation in thicknesses up to 240mm i.e. they do not need to glue boards together as most other manufacturers do. GUTEX insulating wood fibreboards are the ideal choice for both home improvement and new buildings, fulfilling all technical and environmental requirements.

> Can be used with our plasters (see pages 6, 15 and 23) and with our other insulation products in timber-frame, solid wall and warm roof build-ups (see pages 30-32). > Easy, problem-free disposal and recycling. > Manufactured from raw material obtained from local Black Forest forests where only sustained forestry practices are employed. > Outstanding quality control and are subject to approval by an independent, authorised test and certification agency (FMPA, Stuttgart).

Call for a full colour brochure/PDF.

• SUS

E

IN A BL TA

DED

Prod

CO

N

RE

awr Tyˆ -Mucts MME

tips 40% less energy is required to produce dry manufactured insulation rather than wet manufactured insulation boards. 38

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Boards & Insulation Gutex Wood Fibreboards 1 GUTEX Multiplex-top

7 GUTEX Thermoinstal

Rain-tight sub plate with homogeneous single-ply construction. Also suitable for interior applications. Available thicknesses: 18, 22, 28 and 35mm Width x Length: 75 x 250cm

Compression resistant insulation board with single-ply homogenous construction. Ideal for the thermal insulation of installation cavities, electrical power and plumbing lines. Available thickness: 50mm Width x Length: 60 x 125cm

2 GUTEX Ultratherm Rain-tight, durable, insulating sub plate board, with homogeneous single-ply construction. Available thicknesses: 50, 60, 80, 100 and 120mm Width x Length: 60 x 178cm

3 GUTEX Multitherm A moisture resistant insulation woodfibre board with single-ply homogeneous construction, is an ideal sarking board for exterior walls under facade facing. Available thicknesses: 20 - 160mm Width x Length: 60 x 127cm

8 GUTEX Thermoroom Insulation board with single-ply homogenous construction. Ideal for the retrofit insulating of interior walls in older buildings. Available thicknesses: 20 - 100mm Width x Length: 50 x 120cm

9 GUTEX Thermosafe-wd Highly resistant to compressive forces with single-ply construction. Designed to provide thermal insulation for all walls and floors. Available thicknesses: 20 - 160mm Width x Length: 60 x 125cm

4 GUTEX Thermosafe-homogen Universal insulating board with homogeneous construction and excellent properties for protection against summer heat and cold in winter. Available thicknesses: 20 - 200mm Width x Length: 62.5 x 120cm

10 GUTEX Thermosafe-nf

GUTEX Thermosafe

11 GUTEX Thermofloor

The original universal insulating board with multi-ply construction performs excellently in both hot or cold insulation applications. Available thicknesses: 20 - 100mm Width x Length: 62.5 x 120cm

Extremely versatile impact insulation board for all floor applications, including wet and dry screed. Available thicknesses: 21mm (20mm after installation), 31mm (30mm after installation) Width x Length: 60 x 120cm

Comes with joint strips. Especially suitable for wood flooring, providing the ideal substructure for screwfastening. Available thickness: 41mm (40mm after installation) Width x Length: 38 x 119cm

5 GUTEX Thermoflex Flexible, resilient wood fibreboard for insulation between rafters and framework. Available thicknesses: 40 - 200mm Width x Length: 57 x 122cm

12 GUTEX Happy Step Designed for diverse interior applications. Available thicknesses: 4 and 6mm Width x Length: 59 x 86cm

13 GUTEX Thermowall/-gf 6 GUTEX Thermoflat Compression proof insulating board for flat roofs. Available thicknesses: 100 - 160mm Width x Length: 60 x 123cm

The ideal plaster baseboard for GUTEX’s environmentally friendly thermal insulation composite systems. Available thicknesses: 20 - 160mm Width x Length: 59 x 125cm, 60 x 130cm, 60 x 83cm, 125 x 260/280cm

Please call to check availability as not all boards are kept in stock. See www.lime.org.uk for current prices. Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

39


Boards & Insulation

External Walls Energie:Plus comfort – homogenous render base board for wooden framework construction > tongue & groove edged for airtightness and span timbers

Homatherm Woodfibre Insulation Boards

> compact plaster baseboard > directly attached to studwork > manufactured using most innovative dry method

Format 1325mm x 615mm

BD-HFDQ11-40TG

40mm thick

BD-HFDQ11-60TG

60mm thick

BD-HFDQ11-80TG

80mm thick

BD-HFDQ11-100TG

100mm thick

Energie:Plus massive – homogenous render base board for masonry and massive timber walls > butt edged

Homatherm has been working with wood as a raw material since 1929, they are a highly innovative company working out of Berga in Germany. In 1994, they produced the world's first flexible cellulose insulation board, the flexCL® which is still the world’s only cellulose insulation batt - see opposite.

> highly suitable for thermal upgrades on solid walls > manufactured using most innovative dry method

Format 1250mm x 600mm

In 2002, they launched HOMATHERM holzFlex® - the first thoroughly threedimensional, cross-bonded, flexible woodfibre insulating board and in 2005 they developed it further with the development of holzFlex® Mais - the first flexible wood-fibre insulating board made of 100 % natural materials.

60mm thick

BD-HFDQ11-80

80mm thick

BD-HFDQ11-100

100mm thick

> manufactured using most innovative dry method

Format 1250mm x 600mm

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BD-HFDQ11-60

> suitable for masonry and timber walls

22mm thick

BD-HIDQ11-40

40mm thick

BD-HIDQ11-60

60mm thick

BD-HIDQ11-80

80mm thick

BD-HIDQ11-100

00mm thick

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BD-HIDQ11-22

MME

Call us for a full product brochure or for U-value calculations and condensation risk analysis for your project!

40

40mm thick

> for interiors of existing building renovations

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ID-Q11 – internal wall insulation and plaster base board

awr

Tyˆ -Mucts

22mm thick

Internal Walls

These products can be used with our lime plasters – see pages 6, 15 and 23 for suggested build-ups.

IN A BL TA

BD-HFDQ11-22

See www.lime.org.uk for technical data and latest prices

Please see www.lime.org.uk for technical sheets, prices and availability. Not all products are kept in stock, please call to check availability and plan your project.

Tel: 01874 611350


Sarking & Sheathing Boards UD-Q11 protect – energy and cost-saving sarking board, can also be used for sheathing > insulating rigid woodfibre, tongue and groove, sarking and sheathing board > ideal for renovation > can be used as emergency roofing for 10 weeks > manufactured using most innovative dry method

Format 22mm - 50mm 2520mm x 600mm 80mm - 120mm 1825mm x 615mm

BD-HUDQ11-22

22mm thick

BD-HUDQ11-35

35mm thick

BD-HUDQ11-52

52mm thick

BD-HUDQ11-60

60mm thick

BD-HUDQ11-80

80mm thick

BD-HUDQ11-100

100mm thick

BD-HUDQ11-120

120mm thick

Boards & Insulation Homatherm Sarking Boards & Flexible Insulation

Flexible Insulation holzFlex Mais – the only 100% natural woodfibre insulation which uses a natural starch binder instead of glue > flexible wood fibre batt > suitable for full fill insulation of studwork > for applications with high ecological demands > cross-linked uniformly in three dimensions > bonded with an ecological binder made from corn starch > manufactured using dry method

Format 1200mm x 570mm

BD-HHFMAIS-40

40mm thick

BD-HHFMAIS-60

60mm thick

BD-HHFMAIS-80

80mm thick

BD-HHFMAIS-100

100mm thick

BD-HHFMAIS-120

120mm thick

BD-HHFMAIS-140

140mm thick

BD-HHFMAIS-160

160mm thick

BD-HHFMAIS-180

180mm thick

BD-HHFMAIS-200

200mm thick

flexCL® - worlds only cellulose (recycled newspaper) insulation batt > friction fit cellulose insulation batts > best acoustic protection for roof, wall and floor applications > manufactured using dry method > cross-linked uniformly in three dimensions

Format 1250mm x 570mm

BD-FLEXCL-30

30mm thick

BD-FLEXCL-40

40mm thick

BD-FLEXCL-50

50mm thick

BD-FLEXCL-60

60mm thick

BD-FLEXCL-80

80mm thick

BD-FLEXCL-100

100mm thick

BD-FLEXCL-120

120mm thick

BD-FLEXCL-140

140mm thick

BD-FLEXCL-160

160mm thick

BD-FLEXCL-180

180mm thick

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

41


Boards & Insulation Sheep’s Wool Insulation

Ty-Mawr Thermafleece in the Loft Courtesy : The Gliffaes Country House Hotel, Crickhowell www.gliffaeshotel.com

Sheep’s wool is a natural fibre from a fully renewable resource (ie sheep!). We have joined forces with THERMAFLEECE® to produce a wool insulation - T y-Mawr ˆ THERMAFLEECE® - which is made exclusively for us from Welsh wool. It is therefore an excellent choice for those wanting to build/renovate sustainably, whilst contributing to supporting our rural economies and way of life!

Benefits Courtesy: www.printsofwales.biz

Regulates the rooms humidity like here in Wales’ only handmade paper mill www.creativepaper.co.uk

> helps to keep buildings cool in summer and warm in winter. Cool in summer when the outside temperature increases and begins to heat the wool, it releases moisture; that has a cooling effect on the fibre which reduces the flow of heat to the inside of the building. This can reduce peak temperature by up to 7°c. Warm in winter - the absorption of moisture by wool insulation can increase peak temperature by up to 4°c when compared to buildings in which alternative forms of insulation are installed; > can absorb and desorb water vapour without compromising its thermal efficiency. It is therefore ideal for use in roofs, timber frame and solid walls as it avoids a damaging build-up of moisture by allowing water vapour to migrate through the structure see pages 30-33. > uses only 14% of the embodied energy that is used to manufacture glass fibre insulation, therefore paying back its manufacturing energy cost seven times faster than glass fibre; > is harmless and can be installed without gloves or protective clothing.

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> has a life expectancy similar to that of the construction in which it is installed; other cheaper modern installations have a lesser life expectancy, making the whole life cost of wool much closer to those materials. > exclusive to T y-Mawr, ˆ of the wool content, we can guarantee that there is a minimum content of 75% Welsh wool.

> can be recycled for other environmentally friendly applications at the end of its useful life. It contains no permethrin, pyrethroids, pesticides or formaldehydes; > it has a higher fire resistance than cellulose and cellular plastic insulants; it does not burn but rather melts away from an ignition source and extinguishes itself. T y-Mawr ˆ THERMAFLEECE® is treated with a natural fire-proofing agent to improve its intrinsic fire resistance and complies with BS 5803-4 (Spread of Fire) achieving results of zero for ignitability, spread of flame and heat evolved; > is protected against attack by moths and beetles using a borax treatment. Borax is a natural mineral salt that is used in a wide variety of applications. The use of borax to treat wool is extremely safe and poses no risk to people or the environment. Our wool is treated with borax at the wool cleaning stage to ensure a consistent treatment that penetrates deep into the wool fibre; > has excellent acoustic properties which means that it can now be specified as part of your noise control scheme - 100mm between floors and partition walls will meet current Building Regulations Part E. > has full British certification as well as being sucessfully installed in thousands of square metres of loft, wall and floor applications. > now available in roll format (Ecoroll product) and in a higher density product (TF35) - see opposite!

tips When comparing the economics of different insulation products, remember to take into account the thermal value, density, vapour permeability, origin of the raw materials, as well as other components/ binders, not just the price as they can effect performance, long term cost and/or the environmental credentials of the product. 42

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Boards & Insulation Sheep’s Wool Insulation Courtesy : Atkins and Brecon Road Infant School, Merthyr Tydfi Thermafleece Original

Thermafleece Ecoroll

Thermafleece TF35

Thermafleece Hemp

Comments

Composition

Manufactured in the UK using Welsh sheep’s wool, it meets the highest quality and performance standards, which is supported with a BBA certification. It is a woolrich insulation made from 85% British wool and 15% polyester binder containing a high recycled content.

Made from 75% coarse wool of British hill sheep which is unsuitable for many common applications. Rather than going to waste, we transform it into a long lasting sustainable product that fixes carbon from the atmosphere for at least 60 years. The 15% polyester component is recycled and originates from ethical sources with 10% polyester binder.

THERMAFLEECE TF35 is a high density insulation product made from 60% British wool, 30% recycled polyester and 10% polyester binder with a high recycled content.

This is a fully British hemp product. It contains 60% hemp, 30% recycled polyester and 10% polyester binder with a high recycled content.

We have chosen these materials because they are from renewable sources – hence we are not contributing to depleting the world’s finite resources.

Thermal Performance

0.038W/mK

0.039W/mK

0.035W/mK

0.040W/mK

Thermafleece TF35 helps enable lower U-Values where space is limited.

Acoustic

Better

Good

Best

Better

All products can be used to comply with Building Regulations Part E (2003 edition).

Moisture Control

Best

Better

Better

Good

% w/w moisture saturation point per sq.m 100mm: Thermafleece Original – 34%, Thermafleece Ecoroll – 30% Thermafleece Hemp – 17%, Thermafleece TF35 – 34%

Transport

Good

Best

Good

Good

Thermafleece Ecoroll is compressed by 60%. Because insulation is a bulk material, compressing by as much as 60% can reduce the fuel consumption transporting finished goods by more than 50%.

Storage & Handling Limitations

Good

Best

Good

Good

Thermafleece Ecoroll in rolls requires less storage space and with a diameter of 45cm and length of 1.1m, packs of insulation can be easily moved through confined points such as loft hatches. For DIY situations, the products in batts are easy to handle.

Loft Situations

Good

Best

Good

Good

Thermafleece Ecoroll can be quickly unrolled in loft situations. With thicknesses of 370mm and 570mm, Thermafleece will fit easily between joists.

Warm Roof & External Walls

Better

Good

Best

Good

With a thermal conductivity of 0.035 W/mK Thermafleece TF35 is the best choice when it comes to achieving the lowest Uvalue in space limited situations such as warm roofs and external walls.

Disposal

At the end of its long service life, it poses no threat to the environment and can be recycled for other environmentally friendly applications or disposed of safely through composting

Composted but will leave the residual recycled polyester fibre that is suitable for recycling.

At the end of its long service life, it poses no threat to the environment and can be recycled for other environmentally friendly applications or disposed of safely through composting

It can be recycled or safely disposed of at the end of its life.

Of the 400 million tonnes of building materials used in the UK each year – 109 million tonnes are destined for landfill – it is vitally important to consider how durable the material you are purchasing and installing is as well as how it is going to be disposed of at the end of its useful life. Wool insulation is expected to last 60 years or the life of the building and so will not need to be replaced as often as other more conventional insulation alternatives.

How to meet 240mm current building regulations for loft applications (0.16) with the depths available*.

240mm

220mm

240mm

By meeting building requirements the typical household can reduce its heating costs by up to 25% and their CO2 emissions by a staggering one tonne per year.

Embodied Energy 12.8MJ/Kg-1

7MJ/Kg-1

12.8MJ/Kg-1

10MJ/Kg-1

This is compared to aerogel (53), glass mineral wool (49.6), or rigid polyurethance (101)**.

Global Warming Potential

– 0.2Kg CO2 eq.

Zero

Absorbs carbon dioxide as it grows as well as enriching the soil.

We want this to be zero or below to reduce global warming by removing carbon dioxide from the atmosphere.

Zero

* availability may change, please check these figures with us at the time of ordering. **Figures from www.greenspec.co.uk

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

43


Boards & Insulation Sheep’s Wool Insulation

100mm - 400mmx1.2m 75mm - 400mmx1.2m 50mm - 400mmx1.2m 2 2 21 batts/pack per pack (10.08m ) 27 batts/pack per pack (12.96m ) 42 batts/pack per pack (20.16m2) INS-T100400 INS-T75400 INS-T50400

Courtesy : Mr and Mrs Hogg

100mm - 600mmx1.2m 75mm - 600mmx1.2m 50mm - 600mmx1.2m 14 batts/pack per pack (10.08m2) 18 batts/pack per pack (12.96m2) 28 batts/pack per pack (20.16m2) INS-T100600 INS-T75600 INS-T50600

140mm x 370mm x 4.6m (3 rolls and 5.11sqm per pack)

INS-TER140370

140mm x 570mm x 4.6m (2 rolls and 5.24sqm per pack)

INS-TER140570

100mm x 370mm x 4.6m (3 rolls and 7.22sqm per pack)

INS-TER100370

100mm x 570mm x 4.6m (2 rolls and 7.41sqm per pack)

INS-TER100570

75mm x 370mm x 4.6m (3 rolls and 9.44sqm per pack)

INS-TER75370

75mm x 570mm x 4.6m (2 rolls and 9.69sqm per pack)

INS-TER75570

70mm – 570mm x 1.2m - 14 batts per pack (9.58m2)

INS-TF3570570

70mm – 370mm x 1.2m - 21 batts per pack (9.32m2)

INS-TF3570370

50mm - 570mm x1.2 m - 20 batts per pack (13.68m2)

INS-TF3550570

50mm - 370mm x 1.2 m - 30 batts per pack (13.32m2)

INS-TF3550370

Courtesy: www.nickmiles buildingcontractors.co.uk

M ER

permo frame (walls) per roll 50 x 1.5m

IN-PFA5015

permo forte (roofs) per roll 50 x 1.5m

IN-PFO5015

Installation guides are available for all applications – lofts, timber-frame etc – see www.lime.org.uk.

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Ancillaries

B AT F R I E

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Boards & Insulation Hemp Insulation & Edenbloc British grown hemp

Hemp Insulation THERMAFLEECE Hemp is a plant fibre based insulation that is ideal for quick and easy installation. It contains 60% UK grown Hemp, 30% recycled polyester and 10% polyester binder with a high recycled content. THERMAFLEECE Hemp is available 1200mm long slabs in thicknesses up to 100mm. THERMAFLEECE Hemp fits securely between rafters, joists and studs providing excellent thermal insulation performance. What’s more, with a density of 25Kg/m3, THERMAFLEECE Hemp can provide great acoustic absorption. Like all THERMAFLEECE products, it is long-lasting, safe to handle and contributes to a healthier indoor environment by regulating moisture in the building.

Benefits > Highly sustainable, made with a fully renewable plant fibre > Grown in the UK, minimising road miles and hence reducing the environmental impact of the product > Made in the UK > Helps to regulate humidity, leading to a healthier living environment > Thermal Conductivity: 0.040 W/mK

EdenBloc35* This newly launched product is a natural, low density, rigid insulation that is manufactured in the UK. As well as giving good energy efficiencies, it also locks up carbon dioxide and so has an excellent carbon footprint. It also has the best thermal conductivity of the natural products and the ability to eliminate cold bridging factors which means that it can improve insulation performance by as much as 30% compared to other natural insulations.

Benefits of EdenBloc35 > Thermal conductivity of 0.035W/mK providing better insulation performance than any other natural insulation. > Vapour permeable ensuring EdenBloc35 acts in sympathy with the building envelope and making it an ideal choice for use in breathable building systems. > Excellent acoustic absorption properties due to the density and structure of EdenBloc35. > Eliminates thermal bridging factors by creating a continuous sheet of insulation. > EdenBloc35 boards can be fixed back to walls or timbers reducing the complexity of the structure. > EdenBloc35 is composed almost entirely of protein based fibres that are more resistant to combustion than cellulose fibres which eliminates the need for high loadings of fire retardants. > EdenBloc35 contains no organic insecticides and is completely safe to handle and easy to cut. > Absorbs and fixes airborne pollutants including formaldehyde due to the chemical binding capacity of the protein fibres, helping contribute to a healthier indoor environment. > Locally manufactured in the UK in a purpose built factory in Cumbria, minimising transport impacts to site. > EdenBloc35 contains more than 60% recycled content, mainly waste wool from the carpet industry. > EdenBloc35 contains no synthetic binders and it can be safely utilised at the end of its service life. > Low carbon footprint, low embodied energy of manufacture and locks up nearly twice its weight in CO2. > Generates sizable energy savings and CO2 reductions in service. > EdenBloc35 is composed of renewable, naturally derived materials and contains no organic pesticides. > Zero Ozone Depletion Potential (ODP) and Zero Global Warming Potential (GWP). > Safe to re-use or recycle and suitable for energy recovery or composting at the end of life. > Durability provides reliable long term energy efficiency for buildings.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

www.hemp-ty.co.uk

tips Over 30,000 products can be made from hemp some believe it actually has the capacity to reverse the greenhouse gas effect as well as aid in purifying the air, water and soil - see www.hemp-ty.co.uk 45


Boards & Insulation Calsitherm Climate Board Calsitherm Climate Board This board is newly available in the UK. It is is made from calcium silicate, a micro porous mineral building material with effective insulating properties, its high capillary action ensures humidity regulation and the nature of the material means that mould cannot form on its surface. Unlike most other insulation boards on the market, the Calsitherm Climate Board can be directly applied to the existing internal plaster without the need to carry out stud work to carry the board. The diffusion-open, capillary active calcium silicate interior insulation compensates for humidity peaks in the room air and helps regulate the climate in the room. The capillary activity ensures the moisture in the insulation is drawn away and quickly distributed into the room over a large area. It therefore compliments traditional, solid wall construction buildings that need to continue to deal with moisture!

Benefits: > reduced energy consumption and hence heating bills.

Existing Lime plaster Lime plaster, Lime hemp plaster or glaster®

> easy to work with and install. > increased value of the restored building.

KP-mortar

> improvement of room climate. > carries a traditional lime plaster.

Calsitherm climate board

> maintains the moisture control within the building whilst insulating. > no need to apply timber-studding to the wall - can be directly applied to existing lime plaster!

Technical Specification Size Thicknesses Density

tips Simply applying 30mm of Calsitherm Climate Board on a 500mm solid stone wall can reduce heat loss by up to 45% while avoiding the risk of mould growth and condensation. 46

500mm x 1250mm (15) 30, 50mm 200 – 240Kg/m3

Compressive strength

> 1,0N/mm2

Thermal conductivity λ

< 0,066W/mK

Water vapour transmission rate µ

See www.lime.org.uk for an application video.

ca. 6

Availability BD-CALKAM25

Calsitherm Adhesive Mortar 25kg - 6m2 at 8-10mm Combed

BD-CALKCBC30

Calsitherm Climate Board 30mm - 1250 x 500mm (136 boards/85m2 per pallet)

BD-CALKCBF50

Calsitherm Climate Board 50mm - 1250 x 500mm (80 boards/50m2 per pallet)

BD-CALKCBWS15

Calsitherm Climate Soffit Board 15mm - 500 x 250mm (20 boards/2.5m2 per box)

BD-CALKJT8

Calsitherm Joint Tape 8m Roll

BD-CALKSP30

Calsitherm Smooth Plaster 30kg - 12m2 at 2mm thick

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Boards & Insulation Energy Efficiency Measures at Ty-Mawr ˆ

The Brecon Beacon’s – Ty-Mawr’s Back Doorstep! Snow & climate change - Somewhat counter-intuitively, a warmer world could lead to more snow in some places. In warmer areas there is likely to be more evaporation, which means more moisture in the air and makes for more extreme precipitation. If this moisture travels to colder areas, this will still fall as snow. A warmer world does not mean that there will be no cold places!

Solar Thermal Panel built into the stone tile roof for hot water - shower and toilet block

Cold roof with Ty-Mawr ˆ Thermafleece sheep's wool insulation on ceiling, reedboard underneath to carry lime plaster

Heat recovery from manufacturing yard (back-up heat source)

Warm roof Counter batten Tˆy-Mawr THERMAFLEECE® Sheep’s wool insulation/ hemp insulation

Woodfibre sarking board

Woodfibre board or Celenit Wood wool board

Eaves ventilation 25mm

Loft insulation 250mm Ty-Mawr ˆ Thermafleece (Welsh sheep's wool insulation)

glaster® plaster (with glassfibre mesh)

Pilkington K glass for natural light

New toilet block timber frame

Lime hemp plaster on internal walls of Training Centre

Biomass log boiler supplying main heating

Ty-Mawr ˆ Thermafleece 200mm sheep's wool between floors (under floorboards)

Newly made traditional sash windows with blinds

Replacement ceilings - 25mm wood wool board & 15mm medium lime hemp plaster

Racking board (if required) Services void Celenit wood wool board

Woodfibre board

Ty-Mawr ˆ THERMAFLEECE® sheep’s wool insulation/ hemp insulation

Insulated Limecrete Floor with underfloor heating

Flagstones

Edge insulation

Tˆy-Mawr bedding mortar

Lime plaster, hemp lime plaster or glaster plaster ®

The glaster® screed Lime render or glaster render Breather membrane

The Limecrete slab

Breather membrane

®

Breather membrane

Woodfibre board

The insulating layer/ hardcore

Celenit wood wool board EXTERNAL

INTERNAL

These measures introduced over the last decade at Ty-Mawr ˆ (Head Office, Training Centre, manufacturing base and home of the founders of Ty-Mawr) ˆ have reduced our own carbon emissions by up to 40 tonnes per annum - we can all make a difference!

“You must be the change you want to see” M GANDHI

Not to scale

Levelled & compacted ground

tips According to the Energy Saving Trust, an average sized property installed with 270mm of loft insulation can expect: 1. Saving on heating bills of up to £180 to £220 pounds every year 2. Reduced CO2 emission by up to 400kg 3. Greater comfort in both winter and summer Visit www.energysavingtrust.org.uk for energy advice.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

47


Paints & Finishing Products Introduction Courtesy: www.noltonstables.com

Courtesy: www.eatdrinksleep.ltd.uk

Historically, paints have been used as both a protective skin and as a decorative surface on walls as well as woodwork and metal. Over the last decade, we at Ty-Mawr ˆ have carefully designed and selected a unique paint range whilst considering the needs of our clients, those of their buildings as well as the environment. As more and more paints come on to the market, it is important to understand what you technically require from your paint as well as considering how it is made. The table on pages 60-61 gives an overview of the main options. AGLAIA has been producing plant-based wall paints since 1968. We recommend them for a number of reasons.

It is our objective to provide, through our technical information, advice based on our skills and practical experience. Any instructions given are non-binding and do not release the user from his or her liability to check for product suitability and application methods him/herself with regard to the surface used. Technical modifications may result from product development. Upon publication of a revised or new version, these instructions will automatically lose their validity.

Benefits

> their products have a full declaration of ingredients and descriptions of their composition and origination, unlike many of the paints claiming to be 'green' on the market today.

> they are made from environmentallyfriendly, renewable materials; conventional paints are still often based on petro-chemicals (causing huge environmental problems) and fossil fuels like crude oil (that are too precious to burn).

> they are technically good i.e. easy-touse, hard-wearing and proven over a large number of years on thousands of square metres of wall and wood. However, because they do not have conventional artificial drying agents etc, instructions must be followed.

> there is no human health hazard to users or those living and working in the space afterwards.

> they are highly vapour permeable and therefore compatible with other natural and traditional building materials. They can directly help to control damp/ condensation within a building.

> 100% VOC-free (volatile organic chemicals!) naturally.

Surface

Page

Lime and Gypsum plaster, Paper wall paper, Old wall paint cement plaster gypsum plaster boards wall fabrics coating

Clay

Priming: Aglaia Wall Primer

49

Aglaia Resin Bonding Coat

49

● ●

● ■

Wall paints and plasters: Aglaia Resin Wall Paint

51-52

Aglaia Economic White

51

Aglaia Hard-Wearing White

51

Aglaia Casein Binder Paint

56

Aglaia Structural Casein Paint

56

Aglaia Roll-on Plaster

50

Aglaia Renovation Plaster

50

Beeckotex

50

▲ ▲ ▲ ▲ ▲ ▲ ▲ ▲

= alternative applications within the category “primer”.

■ = suitability depends on the indivdual condition of the surface (RBC) = Prime with Aglaia Resin Bonding Coat

48

▲ (P) ▲ (P) ▲ (P) ▲ (P) ▲ (P) ▲ (P/RBC) ▲ (P/RBC) ▲ (P/RBC)

▲ ▲ ▲ ▲ ▲

▲ ▲ ▲ ■ ■

■ (RBC) ■ (RBC) ■ (RBC)

= alternative applications within the category “finish”. One ● and one ▲ each are to be selected. (P) = Prime with Aglaia Primer (P/RBC) = Prime either with Aglaia Primer or Aglaia Resin Bonding Coat

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Surface Preparation

Tyˆ -M a Prod

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Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

TA I N A BL

Sealer – a water thinable, clear primer for extremely porous, mineral building materials indoors or for consolidating dusty stone walls, sandstone and concrete (not plaster). It can also be used as a glaze binder for exposed concrete surfaces indoors – it reduces the absorption capacity and has a reinforcing effect. Coverage – 14 square metres per litre. 3 litres 1 litre PT-AGS3 PT-AGS1

US

O

Burnt Sand Mastic – used to form joints between timber window and door frames and masonry or rendered masonry, traditional burnt sand mastic has been in use for at least 200 years. It hardens slowly but remains sufficiently flexible for the purpose. It adheres tenaciously to most surfaces. 10 litres ACC-BSM10

Insulating White – as above, but pigmented white and suitable for covering stains over large areas e.g. full wall or ceiling surfaces. Coverage – 8 square metres per litre. 3 litres 1 litre PT-AGIW3 PT-AGIW1

REC

Casein Filler – is based on the natural milk protein casein and white lime. It is titanium dioxide free. It has excellent adhesive qualities, making it easier to fill cracks and holes in plaster and other surfaces. Once applied, it remains flexible and lasts exceptionally well. Suitable for interior or exterior use, Earthborn Casein Filler is water repellent yet breathable. It is supplied in powder form for mixing as required. You can even create coloured filler by mixing it with your choice of pigments. Drying time 4-8 hours, sand after 8 hours. 500g 2kg ACC-CF500 ACC-CF2

Shellac Insulating Primer – a clear, quick drying primer for covering water, corrosion, nicotine, tar and soot stains. Made exclusively from plant raw materials, suitable on plaster, wood and wallpapers. Ideal for small areas. Coverage – 8-10 square metres per litre. 3 litres 1 litre 250ml PT-AGSIP3 PT-AGSIP1 PT-AGSIP25

D

Filler/Fine Surfacer – a soft, ready to-use filler for levelling out minor imperfections internally. Apply with a spatula or trowel. Sand when dry. Coverage - 0.55 square metres per kg. 20kg 5kg 1kg PT-AGFS20 PT-AGFS5 PT-AGFS1

Resin Bonding Coat – a general purpose primer for preparing ‘difficult to coat’ indoor surfaces e.g old, shiny paints, before finishing with one of the Aglaia textured wall paints or finishes, i.e. structural casein paint, beeckotex and roll-on plasters. Coverage – 25 square metres per litre. 18kg 6kg 1kg PT-AGRBC18 PT-AGRBC6 PT-AG-RBC1

E

Paint Stripper – a water based, ph-neutral, non-caustic, non-toxic stripper that works on all types of paint, water and oil-based as well as acrylics, lead-based paints, emulsions, varnishes, stains, lacquers etc. 5 litres 2 litres 1 litre PT-PS5 PT-PS2 PT-PS1

Wall Primer – a water borne economical primer for priming absorbent surfaces indoors, especially gypsum, before painting with one of the Aglaia wall paints – see table on page 48. Thin with 2 parts water. It can also be used to consolidate dusty stone walls internally. Coverage – 25 square metres per litre. 10 litres 3 litres 1 litre PT-AGWP10 PT-AGWP3 PT-AGWP1

•S

Traditional Sugar Soap (500g) – a water soluble low suds cleaner used for cleaning surfaces prior to decorating, can also be used as a general purpose cleaner. Readily dissolves in water, contains no hazardous ingredients. 500g ACC-SS500

MEND

tips Fine Surfacer is a very easy to use popular ecological alternative to polyfiller in older properties. 49


Paints & Finishing Products

image?

Surface Preparation Roll-on Plaster - is available “fine” or ”coarse” grained. A white-matt, textured coating for all coatable surfaces indoors. Perfect for coating gypsum walls or cement renders. One or two coat applications of max 3mm, can be applied with a soft brush or lambskin roller. Can be finished with the Resin Wall Paint. Good covering and abrasion resistant qualities. Coverage - 4-4.5 square metres per kg. Beecko-Tex - a ready-to-use natural fibre plaster for indoor use which gives an uneven, textured finish. Less appropriate for rooms of high humidity and surfaces that are frequently exposed to water. Especially suitable for renovating old walls or ceilings due to filling capacity and fibre reinforcement. Apply with a brush or trowel in 1-2mm thick layers. Excellent sound insulation. Can be finished with any Aglaia paint. Coverage - 0.8-1.0 square metres per kg. Renovation Plaster - a ready-to-use, fibre-reinforced levelling plaster for creating fine plaster-like surfaces indoors. Has a pleasant, light scattering of fine quartz grain. Especially suitable for renovating old walls due to filling capacity and fibre reinforcement. Apply 1mm thick using a trowel. Can be finished with the Beeswax Glaze Binder, or any Aglaia Paint. Coverage - 0.8-1.0 square metres per kg.

Courtesy: www.priorymillfarm.co.uk

Roll-on Plaster, Fine (0.4mm) 18kg PT-AGROPF18

Roll-on Plaster, Coarse (1.2mm) Beecko-Tex 18kg 18kg PT-AGROPC18 PT-AGBEE18

Renovating Plaster 18kg PT-AGRP18

6kg PT-AGROPF6

6kg PT-AGROPC6

6kg PT-AGRP6

1kg PT-AGROPF1

1kg PT-AGROPC1

6kg PT-AGBEE6

tips Ideal for disguising plasterboard by softening the texture – these products can be left unfinished or painted with any of the Aglaia products on the following pages. In older properties, Beecko-tex has become a favourite with our clients as the fibres provide a ‘softness’ that is highly compatible with the aesthetics of an old house. 50

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Aglaia Wall Paints Aglaia Resin Wall Paints (natural eco-emulsions) – these easy-to-use, highly vapour permeable, plant-based wall paints are suitable for most substrates internally see pages 60-61. These paints are available in 3 versions depending on the application. 1 Hard Wearing – the most durable of the Aglaia wall paints – ideal for areas of heavy use including corridors, kitchens and commercial areas. Usually covers in one coat. It is slower drying than the other Aglaia wall paints – allow 12-16 hours with an air and surface temperature of at least 13°C. 2 Resin Wall Paint (Two-Star) – a superb quality paint. Ideal for sitting rooms, bedrooms and most domestic applications. Usually covers in one coat. 3 Economic White – ideal for ceilings. Two coats required. All paints are available in white or the Ty-Mawr ˆ range on page 52. T y-Mawr ˆ Range (see page 52)

Economic White

10 litres PT-AGHWW10

PT-AGRWP2W10

PT-AG2TR10CODE

PT-AGEW10

5 litres PT-AGHWW5

PT-AGRWP2W5

PT-AG2TR5CODE

PT-AGEW5

250ml sample PT-AGHWWSAM

PT-AGRWP2SAM

PT-AGTRSAMCODE

PT-AGEWSAM

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REC

6.5-8 square metres per litre.

TA I N A BL

Approximate Coverage

US

D

Resin Wall Paint White**

E

Hard Wearing White

MEND

Highly recommended from an environmental point of view exclusively made from 100% natural ingredients!

“The true meaning of life is to plant trees, under whose shade you do not expect to sit.” NELSON HENDERSON

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

tips These paints are amongst the ‘greenest’ and ‘most sustainable’ on the market as well as being technically excellent in terms of their performance. 51


Paints & Finishing Products Aglaia Wall Paints

www.underthethatch.co.uk

www.underthethatch.co.uk

T y-Mawr ˆ Range

Group 1 Asparagus Bed, Attic, Bee Orchid, Cherry Blossom, Chinese Character, Clouded Yellow, Frosted Orange, Globeflower, Harebell, Heron, Goose Grey, Lady's Mantle, Lucky Hare, Meadowsweet Marriage, Myddfai, Olga's Yellow, Priory Pink, Pantry White, Straw Thatch, Sweet Cicely, Ty-Mawr ˆ Tortoise, Trout of the Lake, Thyme to Rest, Wood White, Washington White, Watermint, Willow oh Willow!

Group 2 Jay, Ochre, Otter Holt, Reedbed, Siskin, Visiting Osprey, Washroom Blue, Water Mint

Group 3 Adonis Blue, Beacon's Blue, Bullrush Brown, Boy's Room Blue, Burnished Brass, Fishing Boat, Gooseberry Fool, Horse Chestnut, Holey Moley!, Ivy Berry, Kingfisher, Mallard, Nuthatch, Natterjack, New Yew!, Red Dragon, Solomon's Seal, Welsh Poppy

Group 4 Autumn Bracken, Daffodil Drive, Golden Rod, Hawthorn Berry, Lady of the Lake, Rhubarb Red, Thistle, Wild Strawberry Courtesy: www.eatdrinksleep.ltd.uk

T yˆ -Mawr Range

tips

Available in sizes 10 litres, 5 litres, 1 litre, 250ml PT-AGRWP2TRCODE

These beautiful plant-based emulsions are highly popular as they are completely safe to use and live with as well as being easy to apply with a high quality finish.

Note: We highly recommend that you try a sample. As colours will vary from printed chart and look different in different situations/rooms. Call for a small hand painted sample of your preferred choice.

52

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Beeck’s Internal Wall Paints Beeck's mineral paints have been manufactured in Germany from waterglass for well over 100 years. Their popularity throughout Europe is based on their incredible durability as they actually bond to the surface to which they are applied becoming part of the fabric of the building. Just as importantly, they function in the same way as the building i.e. they continue to let older buildings ‘breathe’. They have therefore been widely used amongst professionals involved in old and historic building conservation. As they have no artificial resins, solvents, biocides etc, they are also the choice of those concerned about the health of the painters and building occupants as well as those concerned about the environment. The product range is extensive, with paints that can perform in a huge variety of situations and on different backgrounds (outlined here for internal paints and on page 69 for the external range).

Benefits: > they have an excellent historic pedigree dating back to 1884.

INSIL Primer – a white primer for gypsum plasters and plasterboards, use prior to applying Insil Internal Paint. Coverage – 7 square metres per litre. INSIL Internal Paints – a solvent-free, open pored interior silicate paint. Available in white or any of the colours shown in the Beeck’s colour on pages 54-55. This paint is not a pure silicate – it has 4% artificial resin which helps it to bond to difficult surfaces e.g. where modern emulsion may have been used. It is still highly vapour permeable and therefore ideal for rooms with a variety of backgrounds e.g. new plaster with old painted walls. Coverage - 8 square metres per litre. INSIL Primer 5 litres PT-INPRS

12.5 litres PT-INPR125

INSIL White 5 litres PT-INW5

12.5 litres PT-INW125

Paint that lasts a

LIFETIME!

See pages 54-55 for coloured paints.

> Beeck’s mineral paints actually form active silica bonds with the background (i.e. they become part of the background). This is what gives them such incredible durability. > they have a “breathability” (water vapour permeability) comparable to limewash (with an Sd value of <0.02m), which results in healthier and drier buildings. > they are completely non-toxic and contain no VOC’s, this makes them safe for you and your family to work and live with.

The Silification Cycle

Please note these paints rely on a natural chemical reaction occuring to perform at their best - this requires the right primer to enable the silification process to take place - see table on pages 60-61. Always refer to the technical sheets.

tips An excellent alternative to limewash where durability is equally as important as breathability or where the surface has been previously painted.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

53


Paints & Finishing Products Beeck’s Internal Mineral Paints

Courtesy: R & M Williams, St John's Church

Internal Silicate Paints (INSIL) - T yˆ -Mawr Range (See page 53 for description.)

Courtesy: www.priorymillfarm.co.uk

tips Ideal for churches, kitchens, bathrooms and areas of heavy wear. Contact us for application guides or technical sheets - see pages 60-61. 54

Group 1

Group 2

Alabaster, Almondine, Alum, Ammonite, Carreg, Celsian, Chalk White, Citrine, Dolomite, Feldspar White, Glas Bach, Gypsum, Iceland Spar, Limestone, Urchin, Milky quartz, Morganite, Onyx, Opal, Pummice, Rock Salt, Rose Quartz, Sand, Smithsonite, Talc, Tufa, Tuff, White Marble

Graphite, Beryl, Blue Pennant, Coral, Emerald, Flint, Mispickel, Olivine, Puddling Clay, Smoky Quartz, Tiger's Eye, Topaz, Trona

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Courtesy: Wig Farm

Courtesy: Wig Farm

Beeckâ&#x20AC;&#x2122;s Internal Mineral Paints

tips Group 3

Group 4

Agate, Amazonstone, Amber, Amethyst, Aquamarine, Basalt, Cinnabar, Coal, Corundum, Galena, Garnet, Jasper, Peacock Ore, Ruby, Sapphire, Serpentine, Shale, Sphene, Welsh Gold, Welsh Slate,

Lapis Lazuli, Azurite Blue, Bala Blue, Carnelan, Malachite, Sulphur, Ultramarine Note: We highly recommend that you try a sample. As colours will vary from printed chart and can look different in different situations/rooms. Call for a small hand painted sample of your preferred choice. Available in sizes 12.5 litres, 5 litres, 1 litre, 250ml sample. See www.lime.org.uk for prices.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

If you canâ&#x20AC;&#x2122;t find the colour you want, you can send us a sample/cut out etc of what you are trying to achieve and we will do a tailor mix for you (within the limits of our natural pigments). 55


Paints & Finishing Products Specialist & Textured Wall Paints Structural Casein Paint – as below but containing a fine-grain for a slightly textured finish. Coverage – 7 square metres per kg. 18kg PT-AGSCP18

6kg PT-AGSCP6

Casein Binder Paint – an oil bound distemper (plant oil) ready-to use, vapour permeable, white casein paint for interior walls and ceilings. Prime absorbent surfaces with the wall primer. Extremely absorbent, excellent covering properties and easy-to-use. A lovely matt finish. Coverage – 8-10 square metres per litre. 10 litres PT-AGCBP10

5 litres PT-AGCBP5

1 litre PT-AGCBP1

Casein (Powder) Paint – a soft distemper, white paint for internal use only. It is supplied as a powder to which water must be added. It can be used on wallpaper, wood, stone, clay, plasterboards and plaster and can be coloured by adding pigments – see page 29. It can also be used on furniture and can be combined with waxes to create decorative effects. It is vapour permeable and can assist in regulating the humidity of the internal environment. It has a soft chalky finish. It should not be used in persistantly cold or damp situations. Coverage – 8 square metres per litre. 25kg PT-CA25

For pigments see page 29.

Casein powder paint was often used on furniture – it slowly burnishes and polishes overtime if left ‘unglazed’ to give a distressed look or use the beeswax glaze binder to give a more serviceable finish. We like this paint not only from an aesthetic point of view but also from an environmental point of view as it is relatively unprocessed and it is biodegradeable! 56

See www.lime.org.uk for technical data and latest prices

1kg PT-CA1

Glaze Binder (Beeswax) – an easy-to-use, transparent water thinable glaze binder for providing an illusion of depth and light scattering. Pigment can be added, see T y-Mawr ˆ Pigment Range (page 29). Ideal on casein paints to give a satin-matt glaze and to make surfaces more servicable. Coverage – 50 square metres per litre. 1 litre

tips

8kg PT-CA8

PT-AGGB

Fermentation Alcohol – used to “let down” pigments before being added to the beeswax glaze binder. 1 litre

PT-AGFA1

Tel: 01874 611350


Paints & Finishing Products Earthborn Paints Earthborn Wall Paints Clay Paint is a unique, modern clay-based product, providing a quality finish that cannot be achieved with conventional paints. Lush, tactile, flat matt effect. Great covering power. Healthier for yourself and the environment. Coverage - 5-8 square metres per litre. White 5 litres 2.5 litres 100ml Sample PT-CPW5 PT-CPW25 PT-CPWSAM Coloured - see pages 58-59 5 litres PT-CPC5CODE

2.5 litres PT-CPC25CODE

100ml Sample PT-CPCSAMCODE

Earthborn Wall Glaze – a water-based transparent glaze for interior use. It is multi-functional, it can be used as a glaze to protect painted surfaces (walls and wood) and make them wipeable. It can be used to stabilise powdery or sandy surfaces prior to painting. It also provides a means of paint effects by adding pigments e.g. colour washing, marbling, sponging. It can also be combined with pigments and used as a wood stain. Coverage – varies depending on application as diluted with water. 1 litre PT-EWG1

Coming soon a British made natural emulsion from Earthborn - see www.lime.org.uk

Earthborn Wood Paints Earthborn Pro Aqua Eggshell is a water-borne paint for interior and exterior wood surfaces. This product is totally oil and acrylic free and has virtually no odour. It is VOC free and certified not to emit any harmful emissions during or after use. Incredible coverage, stunning finish, no need for undercoat or primer. Drying time of less than 1 hour. Coverage – 11 square metres per litre. White 2.5 litres PT-EPAEW25

White 750ml PT-EPAEW750

White 100ml sample PT-EPAEWSAM

Coloured - see pages 58-59 2.5 litres PT-EPAEC25CODE

750ml PT-EPAEC750CODE

100ml sample PC-EPAECSAMCODE

EU ECOLABEL

Licence No: UK/7/1

tips The wall glaze is ideal for protecting painted wall & wood surfaces it will darken the colour slightly but can be effectively used e.g in childrens’ play rooms or to dado height. Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

57


Paints & Finishing Products Earthborn Paints

58

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Earthborn Paints

Available in silicate (external masonry) - see page 72, and Proaqua (water-based eggshell for woodwork) - see page 57 and clay paints for internal walls - see page 57. Call us for samples or a hand painted colour chart.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Paints & Finishing Products Choosing a Wall Paint

Courtesy: Dr Pinhorn, Brecon

Suitable for T y-mawr Ë&#x2020; Paint Range Surface Preparation

Lime Plaster

Gypsum Plaster

Wood-based Materials eg Chipboard

Concrete

Stone and Brick

Wall Paper

Old Synthetic

Please see technical sheets for full information. Surface preparation is key to a successful finish. These paints are not like vinyl paints which can 'hide' imperfections in the background so careful preparation, attention to suitable substrates (surfaces) and choice of primers are all important. The clay paint is the exception where the chalk fillers etc can cover some imperfections.

Aglaia Resin One coat of Wall Paint Wall Primer, See pages 51-52 two coats of paint.

One coat of Wall Primer, or resin bonding coat, two coats of paint.

One coat Penetrating Primer, one coat of Insulating White, two coats of paint.

One coat of Wall Primer, two coats of paint.

One coat of Wall Primer, two coats of paint.

Possible, check adhesion (one or two coats).

Casein Powder Paint See page 56

Not suitable.

Offers little durability.

Not suitable.

Two to three coats.

Check Requires a test and adhesion first. suitable preparation, Two coats. glossy or oil based paints, must be sanded prior to painting. Two to three coats.

Earthborn Apply a priming coat Clay Paint of 4 parts paint and 1 See pages 57-59 part water. One or two coats.

One or two coats. Apply a priming coat of 4 parts paint and 1 part water.

Two coats. One or two Apply a priming coats. coat of 4 parts paint and 1 part water.

One or two coats.

One coat.

INSIL Mineral Sand or etch Paint fresh plaster See pages 53-55 (if polished/closed surface). To control suction, apply one coat of fixative, followed by 2 coats of accurately diluted paint.

Sand new Not suitable. plaster if necessary, apply one coat of INSIL Primer and one coat of paint (a second maybe required).

Limewash See page 28

Two to three coats.

Internally Three to Not suitable. four thin coats. Externally One coat Ty-Mawr Ë&#x2020; Sheltercoat (work well into surface with soft brush), then three to four thin coats limewash.

Not suitable.

Requires a test but usually clean and directly paint old matt paints. Gentley sand shiny paints, apply one coat of resin bonding coat if required.

Must be de-greased and dry, one or two coats.

Carry out any repairs using compatible materials, clean with Beecks mold remover & water. Apply one coat of INSIL Primer and one coat of paint (a second maybe required).

To control suction, Check apply fixative. Check adhesion first. for efflorescence One coat. and use Silane Primer if required in well ventilated conditions. Apply one coat of INSIL Primer and one coat of paint (a second maybe required).

Strip off old paint. Apply one coat of INSIL Primer and one coat of paint.

Not suitable.

Internally Three to four thin coats. Externally As for Lime Plaster.

Not suitable.

Not suitable.

*Please see technical sheets for each product for full information, dilution rates etc and do a test panel first. ** It is thought that paints should have a vapour absorption of less than 0.1 to enable buildings to breathe, the figure should be as low as possible for very damp buildings e.g. 0.01.

60

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Courtesy: www.bridgecafe.co.uk

Choosing a Wall Paint

Courtesy: www.bridgecafe.co.uk

Attributesâ&#x20AC;Ś Old Mineral Clay, Paint Plaster eg Limewash

Time between coats

How environmentallyfriendly?

How vapour permeable (breathable**)?

How much? Prices will vary depending on colour, size etc.

Ease of application

Good quality brushes/rollers are essential - see page 68. Clean and brush off prior to painting.

One coat of wall primer and two coats of paint.

About 8-12 hours (depends on background, environment, temperature etc).

Highly recommended predominantly plant-based, renewable ingredients.

Good vapour absorption -sd-value (H2O): 0.1m.

Least economic per square metre.

Ready to use, easy to apply but requires careful preparation, an even background (in terms of suction) and even, lap-free application with a high quality brush or roller.

Two to three coats.

Clay plaster must be moistened, two coats.

About 12 hours depending on background.

Highly recommended casein is a milk protein, hence renewable and as it is supplied as a powder, is one of the least processed and most energy efficient in terms of minimising amount transported (as you add the water). Biodegradeable.

High vapour absorption -sd-value (H2O): 0.02m.

Economic in terms of materials per coat but often three coats required.

Supplied as a powder, to which water is added (and pigment if colour required). Applied thinly and must be kept refrigerated after being mixed up and used within a couple of days (like milk!). Do not use if wall is damp and likely to remain damp (as it is a protein and can grow mould).

Clean and One or two brush, one coats. or two coats.

6-12 hours depending on temperature and relative humidity.

Recommended made mainly from natural materials e.g. clays, chalk (which are not renewable but plentiful) and a small amount of food -grade, synthetic preservatives (to prevent mould growth).

Good vapour absorption.

Economic and often only one coat required.

Ready to use, easy to apply, good coverage. Easily covers most backgrounds. Most like a modern paint to use.

Wash and Not suitable. No sooner allow to dry. than 12 hours. Apply one coat of fixative. Apply two coats of paint.

Recommended - made from natural minerals (not renewable but plentiful), free of solvents, biocides and preservatives, small amount of synthetic resin.

High vapour absorption -sd-value (H2O): 0.02m.

Economic approx the same cost per square metre for the paint and for the Primer.

Ready to use, easy to apply but requires careful preparation and correct, primers, an even background (in terms of suction) and even, lap-free application with a high quality brush or roller.

Wash and brush off any loose. As for Lime Plaster.

Highly recommended made from a natural mineral (not renewable but plentiful) and water. Few ingredients, minimal processing. Made here in Wales with British lime. Keeps indefinately.

Most 'breathable' - high vapour absorption -sd-value (H2O): 0.01m.

Most economic in terms of materials per square metre per coat, but more labour involved and least durable.

Ready to use, is thin to apply and must be worked into the surface. Background requires preparation. Lime is caustic so goggles must be worn and skin must be covered. Lively (blotchy), beautiful finish.

Three to four Min 12 hours thin coats. depending on temperature and humidity.

Old walls are notoriously difficult and even modern plasters can have different additives/treatments that may effect the finish. Always prepare a sample. No responsibility can be accepted for any failures or losses incurred as a result of purely using this table - technical sheets must be consulted and samples are essential.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Paints & Finishing Products Internal Aglaia Wood & Floor Treatment

Courtesy: www.priorymillfarm.co.uk

Wood Treatment Component

Page

System Priming Aglaia Boric Salt Impregnation Aglaia Wood Impregnation Primer Aglaia Wood Primer Aglaia Precoater Aglaia Pore Filler Aglaia Resin Oil Protection Finish Coat Aglaia Wood Glaze Aglaia Interior Lacquer Aglaia Resin Oil Sealer Aglaia Hard Resin Oil Aglaia Liquid Wax Aglaia Furniture Wax

63 63 63 63 63 68 67 64 68 68 68 68

Beams, roof timbers Impregnation

■ ■

Siding wall/ceiling Glaze Oil & Wax

▲ ▲

Solid wood furniture racks, doors, toys Paint Glaze Oil & or Sealer Wax

● ● ■

● ●

● ●

Work desks Parquet, wooden floorboards Sealer Hard Oil/ Oil & or Sealer Wax

● ●

■ ■

▲ ▲

■ ■

▲ ▲

■ = technically required ● = alternative applications within the category “primer”. ▲ = alternative applications within the category “finish”. One ▲ and one ● each are to be selected. ■ = recommended additional treatment

Floor Treatment Surface

Wooden parquet, floorboards solid wood floors Hard Oil & Resin Oil Wax

System Priming Aglaia Wood Primer Aglaia Penetrating Primer Aglaia Pore Filler Aglaia Resin Oil Protection Oil Sealing Aglaia Hard Resin Oil (2X) Wax Treatment Aglaia Liquid Wax Aglaia Self-Glossy Wax

63 63 63 68 68 68 68

■ ■ ■ ■

Cork, wood based materials (OSB), fibre boards, terracotta & stone tiles* Hard Oil & Resin Oil Wax

■ ■

■ ■

For regular care, add to the cleaning water

■ = technically required ■ = recommended as a supplement, but not necessarily needed note: *we recommend to make samples when using any of these products, especially as we don’t often know how the different materials may have been treated beforehand.

62

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Courtesy: www.priorymillfarm.co.uk

Aglaia Wood Primers

Penetrating Primer – a universal primer for absorbent mineral or organic surfaces indoors, especially on cork, floor tiles or wood based materials, before applying the Hard Resin Oil (page 68). Coverage – 8 square metres per litre. 3 litres 1 litre PT-AGPP3 PT-AGPP1 Boric Salt Impregnation Primer – a concentrated, water-borne alkali borate solution for protection against fungi and insects. Ideal for supporting structures e.g. timbers underneath roofs. Also suitable for outdoor use if not directly exposed to rain. Completely free of organic solvents, heavy metal salts and volatile synthetic agents. Coverage – varies depending on type of wood and moisture content. 3 litres 1 litre PT-AGBSI3 PT-AGBSI1 Wood Impregnation Primer – a water thinable borax primer for untreated wood. Ideal for use with Boric Salt Impregnation (see above) – can be finished with wood glazes, waxes or lacquers. Also suitable for indoor use as a glaze binder for wood. Coverage – 10 square metres per litre on planed wood. 1 litre PT-AGWOIP1 Pore Filler – a filling primer oil for planed wood, parquet floorboards and cork for further treatment with waxes. Coverage – 10 square metres per litre. 1 litre PT-AGPF1 Wood Primer – a general purpose, deeply penetrating priming oil for wood, for both indoor and outdoor use. Dries tack-free and is non-swelling regarding water. Contains no biocides. Ideal for preparing wood for finishing with lacquers or wood glazes (see pages 64-67). Coverage – 11 square metres per litre on planed wood. 3 litres 1 litre PT-AGWOP3 PT-AGWOP1

Undercoat (Precoater) – a white-matt diffusible undercoat for wood and metal surfaces, interior and exterior use. Ideal priming coat for the Weather Protection and internal Lacquers (see pages 64-66) and as an intermediate coat for the Corrosion Protection Paint on metal (see page 67). Coverage – 10 square metres per litre. 3 litres 750ml PT-AGPRE3 PT-AGPRE750

tips Always try samples first especially on old/unknown wood and terracotta or stone tiles. Wood, cork and open pored stone and ceramic tiles are vapour permeable as long as they are not sealed with impermeable sealers and paints. The Aglaia range of oils and waxes will maintain vapour permeability by lining but not clogging the pores thus helping to control moisture. This is especially important with wood that will move and flex with changes in humidity and temperature!

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Paints & Finishing Products Aglaia Wood Paints

Courtesy: www.underthethatch.co.uk

Both paints are available in white, a standard range of colours (below) as well as a wide range of shades and tones (see pages 6566), designed to complement our natural and traditional wall paints. Please note – dust free after 8 hours, safe to coat after 24-36 hours. Must be diluted according to manufacturer’s instructions using balsam lacquer thinners – see page 68. Coverage – 10 square metres per litre.

Standard Range White (W), Ultramarine Blue (UBL), Oxide Red (OR), Green (G),Yellow Ochre (YO), Brown (B), Umber (UM), Black (BL) Full Colour

01

02

03

04

OR

UB

G

Courtesy: The National Trust

YO

Aglaia Weather Protection Lacquer – a highly weather resistant plant oil paint for external and severely weathered wood, and external steel. Ideal on doors, windows and rainwater goods. No tendency to peel even when subject to intensive weathering. Gives a durable, semi-gloss finish.

tips For new wood use wood primer, then precoater, with 2 thinned coats of the lacquer/paint. It is important to use the full system in correct dilution for best performance (short term for drying, long term for durability and flexibility). 64

B

UM

BL

Aglaia Internal Lacquer - a pigmented plant oil paint for coating wood and metal indoors, furniture and items in daily use. Gives a durable, matt eggshell finish. The absence of acrylic in these paints means that they move and flex with the wood with changes in moisture and temperature without peeling or flaking. They are also ‘vapourpermeable’ and so allow the wood to ‘breathe’. These properties mean that they are more durable than most modern ‘more economic’ wood paints.

Weather Protection Lacquer (exterior, semi-gloss finish) 3 litres PT-AGWPL3CODE

750ml PT-AGWPL750CODE

250ml PT-AGWPL250CODE

Interior Lacquer (interior, eggshell finish) 3 litres PT-AGIL3CODE

750ml PT-AGIL750CODE

See www.lime.org.uk for technical data and latest prices

250ml PT-AGIL250CODE

Tel: 01874 611350


Paints & Finishing Products Aglaia Wood & Metal Paints

Fir Green 02

Fir Green 03

Tyˆ -M a Prod

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M

Sepia 01

Sepia 02

Sepia 03

Moss 01

Moss 02

Moss 03

Violet 01

Violet 02

Violet 03

Olive 01

Olive 02

Olive 03

Pigeon Blue 01

Pigeon Blue 02

Pigeon Blue 03

Stone Grey 01

Stone Grey 02

Stone Grey 03

Night Blue 01

Night Blue 02

Night Blue 03

Savanna 01

Savanna 02

Savanna 03

Deep Blue 01

Deep Blue 02

Deep Blue 03

Rust 01

Rust 02

Rust 03

Polar 01

Polar 02

Polar 03

Chestnut 01

Chestnut 02

Chestnut 03

Jade 01

Jade 02

Jade 03

Nougat 01

Nougat 02

Nougat 03

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

wr

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Fir Green 01

E

Earth 03

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Earth 02

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Earth 01

TA I N A BL

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Courtesy: www.bridgecafe.co.uk

MEND

Exclusively made from 100% natural raw materials

tips Ideal for reviving an old cast iron bath or radiators! 65


Paints & Finishing Products Aglaia Wood & Metal Paints

Courtesy: www.eatdrinksleep.ltd.uk

T y-Mawr ˆ range - Sweet Ciciley

• SUS

E

IN A BL TA

DED

Prod

CO

Rose 01

Rose 02

Rose 03

Grass 01

Grass 02

Grass 03

Purple 01

Purple 02

Purple 03

Light Yellow 01 Light Yellow 02 Light Yellow 03

Blackberry 01 Blackberry 02

Blackberry 03

Corn Yellow 01 Corn Yellow 02 Corn Yellow 03

Lilac 01

Lilac 02

Lilac 03

Gold 01

Gold 02

Gold 03

Sky Blue 01

Sky Blue 02

Sky Blue 03

Terracotta 01

Terracotta 02

Terracotta 03

N

RE

awr Tyˆ -Mucts MME

Available in weather protection lacquer (exterior, semi-gloss wood/metal paint) and interior lacquer (interior, matt/eggshell wood/metal paint). These paints are mixed to order on our premises in accordance with ISO9001:2008 Quality Management System. Please call in advance to place your order and allow plenty of time for delivery of large orders. We are also able to tailor-mix colours to match a colour - please call us on 01874 611350 for advice. “Thanks for the paint, looks really good. Its just the look the we wanted on this project!”.

While every effort is made to ensure the accuracy of colour, due to the limitations in the print process variations may occur. We recommend the purchase of sample pots for testing in situ.

RW, NORFOLK 4/11/2010

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See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Wood Glazes, Paints for Metal & Sawn Wood

M

G**

MG

CY

RP

SB

CW

GW**

PG

D

P

LO

T

W

750ml PT-AGWG750CODE

Internal only 3 litres Clear PT-AGWG3CL

Wood Protection Brown – a dark brown natural asphalt impregnation for absorbent wood outdoors e.g. garden fences, barns, pergolas. Not appropriate for wood in direct contact with ground or water. Fungicidal and non-leaching. Coverage – 10 square metres per litre. 3 litres

TA I N A

Tyˆ -M a Prod

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MEND

PT-AGWPB3

Wood Paint and Varnish Remover 750ml PT-AGWG750CL

3 litres 750ml Gentian (G), Glaze White (GW) PT-AGWG3CODE PT-AGWG750CODE Please allow up to 2 weeks for large quantities.

Paints for Metal Radiator Paint – a heat-resistant, virtually non-yellowing natural paint for heated metal surfaces indoors. Glossy white or tinted using the Interior Lacquers on page 64 (up to 40%). Coverage – 10 square metres per litre. 3 litres PT-AGRP3

Paints for Sawn Wood

US

E•

3 litres PT-AGWG3CODE

750ml PT-AGCPP750

BL

External/Internal

3 litres PT-AGCPP3

** internal use only

O

Coverage – 11 square metres per litre on planed wood.

film. No tendency to flake off even when subject to intensive weathering. Coverage – 10 square metres per litre.

REC

External and Internal Wood Glaze – a waterproof, natural oil glaze for colour transparent treatment of wood suitable for internal and external use. Available in 17 colour tones, refer to the colour chart above. Different colours of the wood glazes can be easily combined to achieve a much wider range of tones and colours. No tendency to flake or peel, even when subject to severe weathering.

D

E

E

J

CODE – Chalk White (CW), Pearl Grey (PG), Driftwood (D), Pine (P), Light Oak (LO), Teak (T), Walnut (W), Jacaranda (J), Ebony (E), Mahongany (M), May Green (MG), Corn Yellow (CY), Red Pepper (RP), Sky Blue (SB), Glaze White (GW)**, Gentian (G)**

•S

Welsh Assembly Government - Coed Derwen Fawr, Llanidloes

750ml PT-AGRP750

Corrosion Protection Paint – a corrosion inhibiting priming paint for ferrous metals and steel, for indoor and outdoor use. Not for use on galvanized sheet. It contains plant oils which absorb oxygen while drying and cross link to become an elastic, water-repellent

Home Strip is an extremely effective waterbased, vapour free paint, varnish and coatings remover based on dibasic esters. Home Strip has a slightly longer dwell time than more dangerous solvent based strippers based on Methylene Chloride and NMP. It allows the removal of up to 5 coats in one application. Clings 100% to vertical surfaces. No discolouration of timber, washes off with just water. It does not dry out after short periods of time, allowing large areas to be stripped successfully, unlike some solvent strippers which quickly evaporate. Because Home Strip does not give off any fumes, there is no need to work out of doors or ventilate the area by opening doors and windows as you would with solvent strippers. Suitable for all woods, metals, stone, brick, marble, GRP (Glass Reinforced Plastic) etc. Recommendations: try a small test area first. Coverage: 1 litre will cover approximately 4 - 6 square meters, depending on coating and thickness. 1 litre PT-PS1

5 litre PT-PS5

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

tips To add colour to a floor – the wood glazes can be applied to the floor timbers, then two coats of hard resin oil. This is a popular choice when clients want the look of a limed floor - thinned chalk white or glaze white wood glazes are ideal. 67


Paints & Finishing Products Aglaia Wood Treatments Resin Oil Protection – a hard-wearing solvent free varnish for furniture, doors, toys and floorboards. Not suitable for surfaces in frequent water contact. Non-yellowing. Highly suitable for light woods. Finish with Furniture or Liquid Wax. Silky, dirt-repellent surfaces. Apply with a brush or a cloth. Coverage - 25 square metres per litre. 1 litre PT-ROS1 Hard Resin Oil – a hard-wearing, dirt-repellent oil for treating floors. Suitable for wood, cork and open-pored stone or terracotta floor tiles. Satin-matt finish for solid wood, the Wood Primer should be used to prime the surface, for cork or terracotta, the Penetrating Primer should be used. Samples should be prepared especially when applying to oak, tropical or resin-rich conifers and stone. Coverage – 10 square metres per litre. 10 litres 3 litres 750ml PT-HROSM10 PT-HROSM3 PT-HROSM750

• SUS

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IN A BL TA

CO

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tips The Resin Oil Sealer is popular as it is so easy to use and gives excellent, easily maintainable surfaces around sinks, near baths or on shelves and doors. See table on page 62 for other applications. 68

Resin Oil Sealer – abrasion-resistant, waterrepellent sealer for solid-wood furniture, doors, work tops and work tables. It is used as a protective coat on colourless, primed wood or after pre-treatment with Aglaia Wood Glaze. New wood should be primed with Wood Primer or Wood Impregnation Primer. Coverage – 11 square metres per litre. Satin 750ml PT-ROSS075 Self-Glossy Wax – a gentle cleaning and regular care wax for oiled and waxed surfaces especially cork and parquet floors. Add a cupful to water for cleaning or used undiluted as a furniture polish. Fully biodegradable, skin indifferent pH value. Coverage – 30 square metres per litre. 1 litre PT-SGW1 Furniture Wax – a fragrant natural hard wax for care and protection of oiled wood surfaces indoors such as furniture, toys and formwork. Made from yellow beeswax, citrus peel oil and carnauba wax. No static build-up, therefore virtually no dust attraction. Apply with a nonfraying rag/cloth. 750ml PT-AGFW750 See summary table on page 62 for advice.

See www.lime.org.uk for technical data and latest prices

Liquid Wax – a hard-wearing natural wax for wooden surfaces, especially parquet floors, cork and floor tiles, shelves, doors or tables that have been pretreated with Hard Resin Oil, Pore Filler or Resin Oil Protection. When dried and buffed, a silky surface is obtained. Use exclusively on oiled surfaces. Suitable for machine use or manual application with a cloth. Coverage – 2030 square metres per litre. 1 litre PT-LW1 Furniture Polish – for use on all internal wooden surfaces that have been oiled, waxed or sealed. It combines the qualities of vinegar, alcohol, balsamic turpentine oil and plant extracts, dissolving household dirt and grease. It fills small marks to produce a fresh, silky sheen. 250ml PT-FP250

Accessories Balsam Lacquer Thinners – a pure plant based solvent from peels and pressings of citrus fruits. For thinning oil based AGLAIA products and cleaning paint brushes. Use instead of white spirits. 1 litre PT-AGBLT1 Brush Renew – brushes that have been hardened by different paints can be softened back to an ‘as new’ state. This product can be used time and time again – invaluable! Ph neutral, non-toxic, safe to use and store. 0.5 litres PT-BR05

Paint Brushes & Rollers - British Made Fitch 3/4” Brush – Top quality slant fitches. ACC-TPB075F Regency Brush – Hand made in the UK. 100% Chungking bristle. Stainless steel ferrule. High gloss lacquered handle. Good for heavier oil-based paints and lacquers. Walleted. 2”/50mm ACC-TPB2REG Citation Pure Black Bristle Brush – 100% Pure black bristle, copper bound. Walleted. British made. 4”/6” 100/150mm ACC-TPB46CIT Lambswool Roller with Frame 9” 225mm ACC-TPBSSR See www.lime.org.uk for extended range.

Tel: 01874 611350


Paints & Finishing Products Beeck’s Mineral Paint

Courtesy: County House, Brecon

Beeck's mineral paints have been manufactured in Germany from waterglass for well over 100 years. Their popularity throughout Europe is based on their incredible durability as they actually bond to the surface to which they are applied becoming part of the fabric of the building. Just as importantly, they function in the same way as the building i.e. they continue to let older buildings 'breathe'. They have therefore been widely used amongst professionals involved in old and historic building conservation. As they have no artificial resins, solvents, biocides etc, they are also the choice of those concerned about the health of the painters and building occupants as well as those concerned about the environment. These paints are highly technical, their excellent properties and great durability rely on correct primers and application. See table on page 70.

Benefits: > they have an excellent historic pedigree dating back to 1884. > Beeck are one of a small number of manufacturers who currently produce these single component mineral paints that still form active silica bonds with the background. This is what gives them such incredible durability - lasting many decades. > they have a “breathability” (water vapour permeability) comparable to limewash which results in healthier and drier buildings. > they protect against natural and chemical weathering, smog, and dirt penetration, algae and fungal growth and are incombustible and light fast. > they are completely non-toxic and contain no VOC’s, this makes them safe for you and your family to work and live with.

Courtesy: Usk Valley Construction

Paint that lasts a

LIFETIME! While every effort is made to ensure the accuracy of colour, due to the limitations in the print process variations may occur. We recommend the purchase of sample pots for testing in situ.

For a larger version, see pages 54-55, we are also able to tailor-mix a colour for you. Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Paints & Finishing Products Substrate

New Lime/ Old Lime/Cement Cement Renders Renders

Painted Render (mineral paint/ limewash)

Painted Render (non-mineral paint)

Aerated Concrete/ Lime Sandstone/ strongly absorbent mineral surfaces

Preparation Use fungicide (if needed to remove lichen). After 24 hours, wash off with hot water using a jet wash.

Allow the new render to cure for 4-6 weeks. Open up surface using etching fluid (thinned with 3 to 5 parts water) or physically sand the surface.

Clean surface using Etching Fluid, (thinned with 3 to 5 parts water).

Use fungicide (if needed to remove lichen). After 24 hours, wash off with hot water using a jet wash.

Use fungicide (if needed to remove lichen). After 24 hours, wash off with hot water using a jet wash.

Use fungicide (if needed to remove lichen). After 24 hours, wash off with hot water using a jet wash.

Repairs

Carry out any repairs using appropriate materials.

n/a

Carry out any repairs using appropriate materials, allow to cure. Uneven surfaces can be filled using the silicate filler trowelled in 1-3mm layers to a max of 8mm. Allow 3-5 days to dry.

Check condtion of paint and render. Carry out repairs using appropriate materials, allow to cure.

Carry out any repairs using appropriate materials, allow to cure. Uneven surfaces can be filled using the silicate filler trowelled on 1-3mm layers to a max of 8mm. Allow 3-5 days to dry.

Carry out any repairs using appropriate materials.

Priming/ stabilising

If salts are present, Apply fixative apply Silane thinned with 2 Primer N parts water. using a solventresistent sprayer. Allow to dry for 12 hours.

Apply diluted fixative To stabilise the over the whole area. surface and equalise the absorbency, apply fixative liberally, diluted with 2 parts water using a brush.

Where any sanding of the surface has occurred, apply fixative liberally, diluted with 2 parts water using a brush.

Liberally apply Silane Primer (Silangrund) using a solvent-resistent pressure sprayer. Allow to dry for 12 hours.

IF REPAIRS HAVE TAKEN PLACE - to cover hairline cracks or to equalise any repairs, apply one coat of Quartz Filler (has a coarse grain) over the whole area using a mineral brush.

To cover hairline cracks and to equalise surface, apply two coats of Quartz Filler (has a coarse grain) over the whole area using a mineral brush.

IF REPAIRS HAVE TAKEN PLACE to cover hairline cracks or to equalise any repairs, apply one coat of Quartz Filler (has a coarse grain) over the whole area using a mineral brush.

Equalising

Painting

Natural Sand Stone/Brick

IF REPAIRS HAVE TAKEN PLACE - to cover hairline cracks or to equalise any repairs, apply one coat of Quartz Filler (has a coarse grain) over the whole area using a mineral brush.

Apply two coats of Beeckosil diluted with Fixative (20% first coat, 5% second coat) using a mineral brush or sprayer. It is vitally important to apply it evenly keeping a wet edge going so that it is lap-free. Complete single elevations in one go. Allow at least 12 hours to dry. Avoid painting in wet or cold weather (below 5°c).

Surfaces should be clean, dry, stable, salt and plant-free before applying the Beeckosil system. The paint does not hide differences in the background, therefore correct products should be chosen and all products must be carefully and evenly applied. It is ESSENTIAL that full technical sheets and application guides are consulted and test panels undertaken to ensure suitablility. This table indicates the steps for most usual conditions, and is for basic guidance only. For mineral surfaces, the Earthborn Silicate Paint is also available. See page 72. For any other surface, please contact us for application guides and technical sheets at tymawr@lime.org.uk.

tips BS-Plus has become very popular in the UK for clients with difficult walls susceptible to water penetration that they wish to keep ‘unfinished’ as stone/brick/lime and keep breathable. Contact us for technical sheets. 70

See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Paints & Finishing Products Beeck’s Mineral Paint

www.trigonos.org

Preparations

Paints and Finishing Products

Fungicide – is effective against a large number of algae, lichen, bacteria and mildew on mineral materials. Coverage depends on extent of growth but approximately 6-7 square metres per litre. PT-BF5 5kg PT-BF10 10kg

Silicate Masonry Paint (Beeckosil) - this is the paint itself. On a flat surface, the coverage is - base coat (dilute with 20% fixative) - 10 square metres per litre, top coat (dilute with 5% fixative) – 9-10 square metres per litre.

Etching Fluid – to clean and prepare all old and new mineral surfaces for use with Beeck’s Silicate Masonry Paint. It must be used with extreme care. Coverage – 50 square metres per litre. PT-BE5 5 litres PT-BE10 10 litres Silicate Filler - for levelling out mineral surfaces, e.g. for facade plasters with flaws or minor structural discrepancies or for bridging fine hair cracks. PT-BSF20 20kg Quartz Filler – a fibre-reinforced silicate primer for bridging hairline cracks and or levelling out equalising the surface. Coarse grained. Coverage – 2.5-4 square metres per litre. PT-BQF8 8kg PT-BQF20 20kg

Available in white or in the T y-Mawr ˆ colour range see page 69. PT-BSMPCODE

www.eatdrinksleep.ltd.uk

12.5 litres, 5 litres and 1 litre

BS Plus - an alkali-resistant hydrophobing agent for the clear protection of absorbent outdoor mineral surface e.g stone, brick, concrete, lime render. Water repelling (for up to 12 years externally) yet highly breathable. Provides long term protection from pollution keeping the underlying building material in good condition. It can also be used for extending the life of any of the silicate finishing products by up to 20 years. Coverage - dependant on type of stone. PT-BBSP5 5 litres PT-BBSP10 10 litres

The result : an inseparable, microporous and thus extremely vapour-permeable yet water-repelling, durable paint finish.

Fixative - a primer for absorbent mineral surfaces and thinner for the Beeckosil silicate paints. Coverage – 25 square metres per litre. PT-BFX5 5kg PT-BFX10 10kg Silane Primer – a water-repellent primer used to reduce the movement of water in the surface of a lime/cement render or limestone that may contain salts. It will help to prevent further coatings being damaged by sulphate attack. Coverage - 1.3-5 square metres per litre. PT-BSG5 5 litres PT-BSG10 10 litres Silane Primer N – as above but use this for sandstone, brick and weathered mineral renders. Coverage - 1.25-3.25 square metres per litre. PT-BSGN5 5 litres PT-BSGN10 10 litres

Restored with Beeck’s Silicate Paints. Courtesy: Bridge End Inn, Talgarth and www.theconservator.co.uk

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Paints & Finishing Products Earthborn Masonry Paint Earthborn Silicate Paint

Earthborn Silicate Primer

Earthborn Silicate Masonry Paint offers a high performance alternative to limewash.

A specially formulated primer for use with the Earthborn Silicate Masonry paint for stabilising loose, powdery surfaces prior to painting.

Being water based and VOC free, it allows walls to breathe. Yet its special formulation with sodium silicate makes it very hardwearing. It is water repellent and can withstand severe extremes of weather.

Benefits

> High performance alternative to limewash.

> Ideal primer for Earthborn Silicate Masonry Paint. > Stabilises loose, powdery surfaces. > Helps prevent algae growth. > VOC free. Water based, highy breathable. > Easy to apply with standard brush, roller or suitable spray gun. Suitable for: > exterior or interior use on all mineral surfaces including brick, stone, concrete, pebble dash, render, lime wash, plaster and render. > diluting Earthborn Silicate Masonry Paint.

> Water repellent, weather resistant, does not yellow.

Product information:

> Helps prevent algae growth.

Coverage:

5 – 7sqm/litre

> Water based.

Drying time:

12 hours (approx)

> VOC free.

Ingredients:

Water, stabilised sodium tetra-silicate, styrene stabiliser

Earthborn Silicate Masonry Paint does not yellow with time and can be washed down to keep it looking fresh. It is available in a selection of 126 colours – see pages 58-59. For optimum performance, first apply a base coat of Earthborn Silicate Primer. Suitable for mineral surfaces (new lime render, stonework etc) but can not be applied over conventional ‘plastic’ masonry paints – see table on page 70 for the Beecks alternatives.

Benefits

> Easy to apply with standard brush, roller or suitable spray gun. EU ECOLABEL

> Low acrylic content, highly breathable.

Earthborn Silicate Paint 10 litres PT-ES10

Suitable for:

5 litres PT-ES5

1 litre PT-ES1

> interior or exterior use Licence No: UK/7/1

> restoration work and historic buildings

Earthborn Silicate Primer

> new or old masonry

10 litres PT-ESP10

> all mineral surfaces including brick, stone, concrete, pebble dash, plaster and render.

Accessories

Product information: Coverage:

5 – 7sqm/litre

Drying time:

4 hours (approx)

Ingredients: Water, sodium tetra-silicate, kaolin, calcium carbonate, styrene stabiliser, ammonium salt, titanium dioxide, common salt (sodium chloride)

5 litres PT-ESP5

1 litre PT-ESP1

Beeck’s Silicate Paint Brush (Rectangular) Beeck’s Oval Glazing Brush

PT-BRMPB PT-BOGB

9” x 13/4” Genuine Sheepskin Roller and Frame

ACC-TPBSSR

Professional Wall Brush – top quality, pure bristle, copperbound, British Made 6” ACC-TPB6WB, 4” ACC-TPB4WB Heavy duty cotton drill apron

72

See www.lime.org.uk for technical data and latest prices

ACC-TPBCA

Tel: 01874 611350


Courses and Books Courses Ty-Mawr ˆ has been running specialist courses in traditional and ecological building since 1996 on the site of their head office on the shore of Llangorse Lake (see above), near Brecon. The newly restored training centre (see right) is based in a beautiful complex of Grade 2* listed buildings, formerly a farmstead in the heart of the Brecon Beacons National Park in Mid Wales. The refurbished Training Centre was opened on June 22nd 2009 by Their Royal Highnesses, The Prince of Wales and the Duchess of Cornwall. The site is still the family home of the founders of Ty-Mawr, ˆ Nigel and Joyce Gervis, and their children and is an on-going restoration project.

introduction to lime This one day course is designed to provide a comprehensive introduction to lime in building. The day starts with an illustrated talk on the properties and use of lime in building accredited by the Royal Institute of British Architects (RIBA). It then focuses on practical demonstrations, providing opportunities for hands-on work. This course is suitable for anyone involved in the repair of old buildings or in the construction of ecological new-builds – contractors, homeowners and specifiers.

“Just like to thank you for a very informative and interesting day. It was really good to meet people with so much enthusiasm for restoration and traditional materials. The more I get involved with lime mortars, the less faith I have in cement. Keep up the good work!” DB, CARMARTHENSHIRE.

Training Centre

Opening of Ty-Mawr ˆ Training Centre by Their Royal Highnesses, The Prince of Wales & The Duchess of Cornwall, June 2009.

The agenda for the day includes: > Lime – properties and use > Slaking demonstration and mortar analysis > Selection of limes and aggregates > Building and pointing with lime > Plastering / rendering / roughcasting > Limewashing and surface finishes Every course delegate will recieve a copy of the Lime Handbook, included in the price, see page 77.

“..I really enjoyed what was taught and am now convinced that lime is the way forward for me. I have made a pact with myself not to put concrete render up for anyone from now on and will start to spread the word...” S.A. See www.lime.org.uk for dates, prices or to book a course. Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Courses and Books lime plastering Flat Plasterwork, External Rendering & Roughcasting This one day practical course, starts with a brief history of lime in building and lime plasterwork. The day then focuses on practical demonstrations and hands-on work using both fat lime putty and hydraulic lime plasters. This course is suitable for anyone with a basic knowledge of lime and/or plastering. The agenda for the day includes: > lime - properties and use (in summary) > lime plastering • preparation of substrates Every course delegate will recieve a copy of the Lime Handbook, included in the price, see page 77.

• selecting suitable limes and aggregates for each job • application • tending and protection of work > limewashes and surface finishes

“…You really helped salvage stage one of our renovation programmes as no-one was prepared to help us…You were patient, thorough and extremely helpful, we couldn’t have moved forward without the skill you instilled into us…Many thanks for an enjoyable day, the plaster all over my feet and the fact that my next door neighbour now asks me for advice!”. JT, VALE OF GLAMORGAN

decorative plasterwork This one day course focuses on practical demonstrations as well as ample opportunity for hands-on run work and casting enrichments. This course is suitable for tradespeople and those who have a basic understanding of plastering. The agenda for the day includes: > illustrated talk - introduction and history of decorative plasterwork > taking profiles > how to make a running mould

“Thank you very much for the lime course that you ran for the National Trust…You generously imparted bucketsful of practical advice and more importantly, you transfer your enthusiasm for lime and doing the right thing by the building most successfully.”

> running in-situ > gauging mixes > mitring > enrichments – moulds and casting

MP, CARMARTHENSHIRE

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See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Courses and Books Summer School 2010 at T y-Mawr ˆ The Prince’s Foundation for the Built Environment

pargetting

“Week two at T y-Mawr ˆ was heaven. To be in that place, surrounded by passionate, knowledgeable people was truly a privilege.” JOSH

Led by one of the leading craftsman in the UK, this one day course is designed to provide an introduction to the craft of pargetting. It will cover the history and development of pargetting styles from late Tudor to the Arts and Crafts movement. There will be demonstrations and hands-on work with carved wooden stamps and freehand work depicting flora, birds and mammals in the Jacobean style. You will work on your own panel which can be taken away at the end of the day.

BURRELL, SUMMER SCHOOL, PRINCE’S FOUNDATION FOR THE

See www.lime.org.uk for dates and prices.

BUILT ENVIRONMENT.

energy efficiency in solid walled buildings

Warm Roofs

This information day looks at the principles behind improving the energy efficiency of traditional, solid wall buildings using natural / ecological building materials, without compromising their vapour permeable structure. Many of the products and systems discussed during the day will be illustrated by real examples carried out in the on-going renovation of the buildings at T y-Mawr. ˆ

Floors

> woodfibre boards combined with natural fibre insulation > the insulated Limecrete Floor See www.lime.org.uk for dates and prices.

Principles of old buildings > how solid wall buildings function > why is moisture management important > what is the impact of choosing the wrong materials

Upgrading the insulation value of old buildings Solid Walls > insulating lime hemp plasters > calcium silicate boards > woodfibre boards combined with sheep’s wool/hemp insulation and composite boards

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Courses and Books

tips Gift vouchers are available for courses - please contact us for further information.

thatching This one day course is designed to provide a practical introduction to thatching. The day is centred around the practical application of a thatched roof on a purpose-built display. It is suitable for builders, homeowners, architects and other enthusiasts. The agenda for the day includes:

“We both enjoyed the course very much and found it useful, valuable and inspirational! It was great to meet new people, eat nice food and spend time in such a lovely place. Thank you!”. MD, POWYS

> vernacular styles across the UK with an emphasis on Welsh thatch > what is and isn’t repairable > new and repair thatch projects > selection of materials

See www.lime.org.uk for dates and prices.

> the possibility of growing and harvesting your own straw and water reed > practical application

drystone walling This one day course is designed as an introduction to drystone walling. It is a practical day that takes delegates through every stage of taking down and reconstructing a drystone wall. It is ideal for beginners and enthusiasts. The agenda for the day includes: > stripping out and repairing an old wall > how to select the right stones for the job > preparing and laying foundations > how to construct a double faced wall > how to finish the wall with coping stones

“Course tutor was helpful and informative with further enjoyable historical and geological information that I greatly appreciated” MH SWANSEA.

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See www.lime.org.uk for technical data and latest prices

Tel: 01874 611350


Courses and Books Courses for Architects, Surveyors and Conservation Officers

The Lime Handbook

CPD Seminars We offer a RIBA accredited CPD seminar ‘Lime: Traditional Building Products for Today’s World’ as well as seminars on Limecrete Floors, glaster® and upgrading walls and roofs using sustainable, insulating materials.

Bespoke Courses We design and deliver training courses tailored to meet your individual requirements either at Ty-Mawr ˆ or on your site. Over the last few years these have included courses on “Paints” and “Insulation” for the National Trust; on-site training on lime pointing for British Waterways staff and volunteers from the Waterway Recovery Group; “lime” and “energy efficiency” courses for e.g. The Churches Conservation Trust, Building Conservation Officers, Townscape Heritage Initiatives and Building Control. In 2010, we designed and ran a course in Amman, Jordan for the Royal Botanic Gardens on using lime and local, sustainable materials in their new cement free builds.

Educational Visits and Venue Hire Opportunities for visiting groups > to share in a long term restoration project providing an exemplar of caring for our built heritage whilst reducing the impact of buildings on the environment > for hands-on experience for students of Environmental Design, Construction and Building Conservation from schools, colleges and universities > to experience ongoing archaeological excavation of the site of a former Elizabethan manor house for schools and interested groups > to camp with a group of friends in a beautiful location (activities can be arranged e.g. pizza oven building, coracle making). > to enjoy a unique location to hold a meeting, conference or training event, or to study the natural or cultural heritage of the area.

“The room was perfect for our needs… as was your hosting – very friendly and professional right from the point of booking. We will definitely use T y-Mawr ˆ whenever we can in future.” PLANED (LOCAL ACTION NETWORK FOR ENTERPRISE AND DEVELOPMENT) Bespoke course: Royal Botanic Gardens, Jordan.

“This Lime Handbook” has been written and produced by Nigel and Joyce Gervis, founders of Ty-Mawr ˆ Lime Ltd. The handbook sets out to make lime more accessible as a building material giving projects a much better chance of success. It covers the following areas: - the history and properties of lime - guidelines for specifying different types of lime for different applications - step by step illustrations on the stages of lime plastering and pointing/building using colour photographs - the purposes and application methods for shelter coats and the stages of limewashing Finally, it introduces the reader to the techniques for using glaster and lime hemp plaster, as well as limecrete floors and how to incorporate lime in upgrading the insulation value of solid wall constructions, new timberframe buildings and in warm roofs. Lime Handbook

B-TLH

Please note: delegates attending our Introduction to Lime and Lime Plastering courses will receive a free copy!

Nigel and Joyce Gervis and their family have strived to make Ty-Mawr ˆ an accessible place designed to inspire others and to provide opportunities to share their appreciation and enjoyment for the buildings and the location. Call us to discuss your ideas! Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

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Services and Placing an Order Services We have over 16 years of experience in supporting the products in this catalogue. Our product support team are able to:

"..thank you for receiving us...It was a superb introduction for us all - especially for myself as the project manager, and my architect ...he is really fired up by what he learned and saw, the visit has opened up a new area for him…As far as my own project is concerned, the visit was invaluable. I now know exactly where I am going with it, and returned excitedly to brief my 2 young builders, who incidentally will be booking a course with you soon. Anyway, thank you very much for all your help and encouragement and your hospitality”. DM, 6/4/11.

If you wish to place an order, you can: > call one of our sales advisers on 01874 611350

> advise on the most appropriate product for your particular set of circumstances and where necessary send through a comprehensive free technical sheet on the products or systems that you are interested in specifying/purchasing. Samples are also available for many of the products and paints or can be produced.

> visit our website www.lime.org.uk and use the on line shop where you will build up discount points.

> meet with you to discuss a particular project at our own premises (Ty-Mawr, ˆ Llangasty, or at our distribution unit in Brecon).*

> visit one of our stockist (see www.lime.org.uk)

> email tymawr@lime.org.uk > fax your order to 01874 658502 > post your order to Ty-Mawr, ˆ Unit 12, Brecon Enterprise Park, Brecon, Powys. LD3 8BT

> visit sites to assist clients/architects to assess the building condition with a view to suggesting appropriate materials and repair techniques. A report with photographs can also be produced.* > produce research reports looking into the history of a building, provide heritage asset advice on listed and unlisted buildings, carry out historic farmstead assessments and advise on new build within the historic environment.* > undertake u-value calculations for our range of insulation products and help advise on compliance with Building Regulations where appropriate. This is a free service when the intention is to purchase/specify products from Ty-Mawr ˆ or one of our stockists. > undertake dynamic modelling of specific situations to consider impact of using our products.* > provide comprehensive training in the use of our products, see pages 73-77. We are also able to deliver training courses on specific sites as well as at our premises.* > deliver RIBA-accredited CPD seminars. > undertake a mortar analysis and matching service - see page 11.* > match and tailor mix limewashes, wall and wood paints - see page 29.*

78

Placing an order

See www.lime.org.uk for technical data and latest prices

Help! Please Note: We are not an advisory service for anything other than our own product range, the following are useful starting points if it is more general advice that you are seeking. > for old buildings and building limes: ■

the Society for the Protection of Ancient Buildings on 0207 3771644

the Building Limes Forum www.buildinglimesforum.org.uk

> for environmentally-friendly buildings: ■

the Centre for Alternative Technology on 01654 705991 or www.cat.org.uk

the Association of Environment Conscious Buildings on 0845 4569773 www.aecb.net

*Chargeable services.

Tel: 01874 611350


Terms and Conditions

1 DEFINITIONS “Customer” means any person or business who purchases Goods and Services from the "Supplier". “Goods” means the articles specified in the Proposal, whether by means of sale, hire, rental or otherwise and whether the property of T y-Mawr ˆ Lime Ltd or distributed by T y-Mawr ˆ Lime Ltd as agents for another. “Supplier” means T y-Mawr ˆ Lime Limited of Llangasty, Brecon, Powys LD3 7PJ.

2 GENERAL These Terms and Conditions shall apply to all contracts for the supply of Goods and Services by the Supplier to the Customer and shall prevail over any other documentation or communication from the Customer.

3 THE ORDER The Supplier reserves the right to accept or refuse any order given on the basis of its quotations. In the event of the refusal of any order, no damages or expenses of any kind shall be payable by the Supplier. The Supplier offers a mortar and paint matching service, and whilst the supplier endeavours to colour match to the sample supplied by the customer, an exact match may not always be possible due to the limitations of the specialist materials used. The Supplier offers guidance on the most suitable product for the Customers application however no responsibility can be accepted for the suitability of the products for the specific application on-site. It is the responsibility of the Customer to check the guidance given in the technical application guides and to undertake trials on site to ensure the suitability of product. This is especially important in old buildings where it is not always possible to know exactly how the substrate has been treated in the past.

4 PRICE AND PAYMENT The price for the Goods and Services is as specified in the quotation (valid for one month) /order. The goods shall remain the property of the Supplier until payment has been received and cleared through the Suppliers bank, but they shall be at the risk of the Customer from the date of delivery. If the Customer fails to make any payment within the agreed terms (account customers 30 days net, unless agreed otherwise), the Supplier shall be entitled to charge interest on the outstanding balance at the rate of 8% above the HSBC base rate. Account facilities are available on application, providing the application is successful following credit checks and references. The Supplier reserves the right to refuse to extend account facilities. All major debit and credit cards are accepted. Credit card payments are subject to 2.5% credit card charge. There is no charge for debit cards, BACS payments or cheques. Printed price lists are subject to alteration without notice by the Supplier. The price charged shall be that ruling at the date of order irrespective as to when the goods arrive at the Customers premises. All printed prices exclude VAT and Delivery.

5 DELIVERY Refer to the delivery section of the website for full terms and conditions of delivery. The risk in the goods shall pass to the Customer on delivery/acceptance of goods. The Supplier reserves the right to change the requested delivery date but will inform the Customer of any changes. The Supplier shall not be liable for any loss, costs, damages, charges or expenses caused directly or indirectly by any delay in the delivery of the Goods. The Supplier will not be responsible for any re-delivery charges incurred as a result of any access restrictions, unsuitable surface to offload on to, or for any other reason outside of its control. The Customer is responsible for ensuring that the Supplier has full information concerning the delivery. The Customer is responsible for the unloading of the delivery unless

otherwise arranged with the Supplier. The Supplier cannot accept any responsibility for the way in which goods are used or stored or for any consequential loss of any description incurred by the Customer or for any damage caused directly or indirectly by the goods. The Customer must check the goods upon receipt and note any discrepancies, damages etc on the delivery note. The supplier does not operate its own delivery service. All deliveries are carried out by independent haulage contractors on the customer’s behalf. We endeavour to charge delivery at cost, it is therefore calculated as accurately as possible on the website but due to the nature and the bulk of many of the materials, there may be occasions where there may be discrepancies. We would contact you immediately (prior to despatch) if there are any discrepancies and will endeavour to reach a mutually agreeable solution. Delivery prices are for mainland UK only. The customer does have the option of arranging their own collection and delivery.

6 CANCELLATIONS, RETURNS AND REFUNDS Goods Any complaint about the goods must be notified in writing to the Supplier within 3 days of delivery of the goods. The decision by the Supplier about any alleged defect shall be final and conclusive. Any orders cancelled prior to dispatch by the Customer shall be subject to any charges incurred as a result of the order being placed e.g. manufacturing / labour charge, bank charges and an administration charge (minimum of £25). The Supplier can only assist with the estimate of quantities of goods required. It is the Customer’s responsibility to check any calculations before determining the actual quantity ordered. The Supplier cannot accept any responsibility for any costs incurred or any consequential loss as a result of incorrect quantities being ordered. The Customer should satisfy themselves using the technical sheets provided that the product is suitable for their particular application. Every effort has been made to ensure the accuracy of the colour of products in this catalogue and on the website but due to the limitations of printing and/or technology, we strongly recommend that sample products are purchased for testing in situ prior to the full order being placed. The Supplier can not be held responsible for any direct or indirect loss or damage caused by any inaccuracies. As part of their quality management system, the Supplier does not accept returns as most of the goods are time and environment sensitive. If returns are authorised by the Supplier, they will be subject to a collection charge at cost and a handling charge of 10%.

Courses Course fees are refundable up to two weeks prior to the course date minus a £15.00 administration charge. There can be no refunds for cancellations that occur within 2 weeks of the course but you can transfer your booking to a new date (subject to availability) for a £30.00 administration charge.

7 WASTE AND PACKAGING The Customer is responsible for the disposal of any waste arising from the goods and should comply with all applicable laws, regulations and waste management licences relating to such waste.

8 LIMITATION OF LIABILITY The Supplier shall not be liable for any direct loss or damage suffered by the Customer howsoever caused, as a result of any negligence, breach of contract or otherwise in excess of the price for the Goods and Services. The Supplier shall not be liable under any circumstances to the Customer or any third party for any indirect or consequential loss of profit, consequential or other economic loss suffered by the Customer howsoever caused, as a result of any negligence, breach of contract, misrepresentation or otherwise. Version 11/1 please refer to www.lime.org.uk for any updates.

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

79


Deliveries & Distribution

Hiab/crane off load

Curtain sided lorry for palletised deliveries

Deliveries

have other deliveries going in your direction. The mileage price is then apportioned in relation to the weight of each order as well as the miles travelled. All of the options are listed on our website, or call to discuss your requirements.

Our sales advisers and website will calculate the most economic delivery option for your order or you can choose to collect. The options are: > Collect from one of our sites - please place your order in advance, we can then ensure that your goods are ready for you to collect. Locations include: • our distribution warehouse in Brecon (just off roundabout of the main A40,A470 trunk roads) Unit 12, Brecon Enterprise Park, Brecon, LD3 8BT. • T y-Mawr ˆ Farm, Llangasty, Brecon, LD3 7PJ - by arrangement only. > Collect from one of our distributors - our materials are increasingly available through a growing network of stockists, please see distributors map on www.lime.org.uk to find out about the one closest to you. > Getting your order delivered to your site - some of the products are not easy to distribute - we rely on your co-operation to advise us about any access restrictions, ability to offload, etc - we will then confirm these via an Order Confirmation so that you know what to expect and when. However, when the goods are despatched from our premises, the Terms and Conditions of our preferred hauliers apply. The options are: 1. Palletised Deliveries - via national carriers for palletised goods which are delivered on rigid, flatbed, curtainsided lorries (various sizes are used so we must be notified if you have any access restrictions). These lorries do not have crane offload and can only offload with a tail lift which must be requested. In order for the tail lift to be able to offload your goods you must have a hard flat tarmac/concrete area, gravel is not a suitable surface. Pallet sizes are: • Small pallet - weight up to 225kg, dimensions 4ft x 4ft x 3ft (high). • Full pallet - weight up tp 1200kg (can only tail lift a maximum of 1000kg), dimensions 4ft x 4ft x 7ft (high). Delivery is charged per pallet and rates vary depending upon the postcode and the number of pallets - the website has been designed to calculate the right delivery charge for your weight, volume, delivery requirements and postcode, if it fails for any reason it will email us with the details of your order and we will contact you with a delivery cost, or call our sales advisers. 2. Door to door deliveries using our preferred hauliers – we have a range of lorries from 6.5 tonne to 26 tonne, with and without crane offload as well as transit vans - these deliveries are charged at a per mile rate. Given time we can arrange 'shared' deliveries if you do not have a full load as long as we

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See www.lime.org.uk for technical data and latest prices

• 26 tonne artic lorry with crane offload - you must ensure that you have an area big enough to store the full load AND for the lorry to turn around on site. The lorry's dimensions are 55ft (long) x 8ft 6in (wide) - it is your responsibility to ensure that this vehicle has easy access through gates, up lanes, to turn, etc... • 14 tonne flatbed lorry with crane offload - the lorry's dimensions are 34ft (long) x 8ft 6in (wide) it is your responsibility to ensure that this vehicle has easy access through gates, up lanes, to turn, etc... You must also ensure that you have an area big enough to store the full load AND for the lorry to turn around on site. Please note: the crane is front loaded therefore can not offload anything in front of the cab area of the lorry. • 21 tonne flatbed lorry with crane offload - as above but with a trailer - the overall length of the vehicle is 68ft - it is your responsibility to ensure that this vehicle has easy access through gates, up lanes, to turn, etc... You must also ensure that you have an area big enough to store the full load AND for the lorry & trailer to turn around on site. Please note: the crane is front loaded therefore can not offload anything in front of the cab area of the lorry. • 6.5 tonne flatbed lorry with crane offload - the lorry's dimensions are 28ft (long) x 8ft 4in (wide) it is your responsibility to ensure that this vehicle has easy access through gates, up lanes, to turn, etc... You must also ensure that you have an area big enough to store the full load AND for the lorry to turn around on site. Please note: the crane is front loaded therefore can not offload anything in front of the cab area of the lorry. • 1.5 tonne High-top Transit Van - with no offload. 3. Parcel Couriers are used for orders of up to 30kg and are charged at a per kilo rate. The couriers will not usually leave the goods without a signature unless it is requested at the time of placing the order so that a special code can be applied to the ticket. This must be requested, otherwise a re-delivery charge will apply if no-one is able to sign for the goods. Delivery Timescales > We have a new 10,000sqft dedicated distribution warehouse to ensure that we have adequate stocks to meet the majority of orders. If there is a time delay we will advise you of a estimated delivery day as soon as possible. > As we use a number of different delivery methods, the terms and conditions of the specific haulier will apply, see www.lime .org.uk for full terms and conditions. See www.lime.org.uk for the latest version.

Tel: 01874 611350


How to find us Distribution warehouse, Brecon

A470

Trefecca A479

Brecon

< To Llandovery A40

Brecon

Livestock Market Enterprise Park

Tyˆ -Mawr

Homebase A40

Distribution

A470

Bypass A40 Brecon Beacons National Park

< To Cardiff

To Crickhowell >

Brecon Sales & Distribution Warehouse Unit 12, Brecon Enterprise Park, Brecon, Powys LD3 8BT Tel: 01874 611350

B4560 Llanywern Llanfihangel Llangorse Talyllyn Llangorse Lake Tˆy-Mawr Llangasty Head Office Llanhamlach Beacon’s Pennorth Nurseries A40 Llansantffraed B4558

Please call before visiting Head Office and Training Centre Ty-Mawr ˆ Llangasty, Brecon LD3 7PJ Tel: 01874 65800

Bwlch To Crickhowell >

Head Office and Training Centre

Specialist Manufacturer and Distributor of Traditional and Ecological Building Materials and Paints

81


T y-Mawr ˆ - caring for the future, respecting the past… T y-Mawr ˆ - gofalu am y dyfodol, gan barchu'r gorffennol… Products shown on a traditional solid wall building but also applicable for use with modern build systems

Warm roof - combines woodfibre board with sheep’s wool insulation to produce a highly effective insulation system without the need for membranes.

(page 31)

Sheep’s wool insulation uses just 14% of the embodied energy used to manufacture glass fibre insulation. It is breathable, warm in winter, cool in summer, able to control moisture with no loss of thermal efficiency, recyclable, renewable and extremely durable.

(pages 42-44) Woodfibre board made from waste wood.

Plant oil gloss paint is flexible and extremely durable, due to the absence of acrylic - it does not peel or flake.

(pages 38-41)

(pages 64-66)

(page 63)

Roof timbers treated with Boric Salt impregnation - an environmentally friendly mineral based water - bourne solution used to prevent fungi and insect attack.

Plant oil gloss paint is flexible and extremely durable, due to the absence of acrylic - it does not peel or flake.

(pages 64-66)

Lime mortar - a pointing mortar made to match the original by correct choice of aggregate/ sand will also ensure the longlife of the brick/stone by ‘wicking’ away moisture and gently moving with the building.

glaster® - a lime plaster made with recycled bottle glass as a sand substitute. It has all the advantages of a lime plaster (breathable, regulates moisture etc) without contributing to the extraction of virgin sand and develops a use for a waste product (bottle glass).

(pages 22-23)

(pages 10-11)

Partition wall of Celenit Wood Wool boards with lime plaster and a sheep’s wool insulation to give acoustic as well as thermal insulation. Sheep’s wool insulation also improves the indoor air quality by absorbing formaldehyde.

Internal wall insulation. (page 33)

Timber floor treated with a plantbased hard resin oil, naturally enhances the wood with no chemicals to off-gas into the room.

(pages 30-42) Lime Hemp plaster

(page 68)

(pages 13-15)

Natural emulsions - 1 tonne of acrylic paint produces up to 30 tonnes of waste of mostly low biodegradability, the World Health Organisation class painting as carcinogenic due to the levels of VOCs in paints. Natural emulsions are beautiful, easy to use, durable with no health hazards for painters or the occupants.

Plant oil gloss paint is flexible and extremely durable, due to the absence of acrylic - it does not peel or flake.

(pages 64-66)

(pages 32-42) Glasscrete screed - lime screed made with recycled glass aggregate.

Hydraulic lime render (pages 16-17) as an alternative to cement. Cement is responsible for 10% of worldwide CO2 emissions, more polluting than the whole of the aviation industry! Use a traditional limewash (page 28) or silicate paint (pages 69-72), to maintain ‘breathability’ - impervious modern paints trap moisture and peel and flake in an unsightly manner.

(page 25)

Plant based heat resistant radiator paint.

Recycled insulating aggregate.

Limecrete Floor - is an environmentally-friendly alternative to concrete floor. It also helps to control moisture, is lightweight and made from recycled as well as naturally fired aggregates.

(page 67)

(page 20)

(pages 18-21)

Thank you for requesting or picking up our catalogue, we hope that you find it useful and we look forward to working with you!

Local stockist:

NIGEL & JOYCE GERVIS Printed on FSC accredited paper. Design: www.ridlerwebster.co.uk Disclaimer - every effort has been made to ensure the accuracy of the information and diagrams in this catalogue, however Ty-Mawr ˆ can not be held responsible for any direct or indirect loss or damage caused by any inaccuracies in this catalogue. © Please do not infringe our copyright by photocopying or otherwise reproducing the text or illustrations in this catalogue.

T y-Mawr ˆ Sales and

Distribution Warehouse Unit 12, Brecon Enterprise Park, Brecon, Powys LD3 8BT Tel: 01874 611350 Fax: 01874 622774 Training and Manufacturing Ty-Mawr, ˆ Llangasty, Brecon, Powys LD3 7PJ Tel: 01874 658000 Fax: 01874 658502

Website www.lime.org.uk Email: tymawr@lime.org.uk


Ty-Mawr Product Catalogue 2011