Spantherm Brochure

INNOVATION IN CONCRETE

THE NEXT GENERATION OF THERMALLY EFFICIENT FLOORING

Flooring

INNOVATION IN CONCRETE

Creagh is leading the market with innovation in concrete, providing new solutions across the construction industry.

We are changing the way people think about concrete, bringing new levels of efficiency and performance to their projects. Ideas drive our business and by working together we deliver great results for our clients.

2

Contents

Spantherm is an innovative off-site solution for the house builder.

Ease of installation

04

Thermal performance

06

Product benefits

08

Product range

10

How it works

12

Construction detail

14

Specification

18

Ground gas protection

20

Party walls

23

Handling & installing

25

Industry accreditations

26

Creagh products

27

3

Flooring

REDEFINING EASY TO INSTALL Spantherm is installed in just minutes, not days.

By producing high performance insulated structural concrete units off-site we have redefined the speed of installing a fully insulated ground floor. This is the next generation of structural flooring systems designed as the efficient alternative to labour intensive beam and block installations.

SPEED Each high performance Spantherm floor is designed by qualified engineers to meet each plot’s specific structural requirements. The units are manufactured off-site in quality controlled factory conditions and arrive on-site complete with preformed service holes, ready to install to your subfloor ground works.

A typical 90m2 ground floor can be installed in just 90 minutes, providing a safe working platform, ready to be fully loaded after just 72 hours. Spantherm can reduce build programmes by up to one week compared to systems which require a structural topping.

EFFICIENCY The materials and labour required for installation can be provided from a single source in just one delivery.

No stocks of blocks or insulation are required on-site and the installation process will produce zero waste for maximum efficiency. We offer a full supply and fit service or alternatively we can work on a supply only basis.

4

Ease of Installation

5

Flooring

OUTSTANDING THERMAL PERFORMANCE Spantherm is a fabric first solution.

The system integrates structural concrete with expanded polystyrene insulation and the tightly butted units lock in the thermal performance efficiently across the slab.

PART L 2013 COMPLIANCE Spantherm is available in 3 performance options designed to boost your building’s performance within SAP. Please refer to our table for floor performance based on actual Perimeter/ Area ratios.

Achieve U-value as low as

0.12W/m2K

Spantherm Plus based on a P/A ratio of 0.6

REDUCED COLD BRIDGING Spantherm is designed to reduce cold bridging at wall/floor junctions making an important contribution to Part L performance.

The Psi values offer improvement over both the default and approved values within table K1 SAP 2012.

Typical Psi value*

0.11W/mK

*Spantherm Plus configuration see page 14

6

Thermal Performance

Thermal modelling of the Spantherm/wall junction (parallel to external wall)

20 [°C] 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1

Please refer to page 18 for thermal modelling details.

7

Flooring

WHY CHOOSE SPANTHERM? The benefits of Spantherm

Speed

Efficiency

• No additional site works or laying out required.

• Service openings are precast for efficiency on-site.

• A typical 90m2 ground floor is installed in just 90 minutes.

• Zero waste on site.

• Fully compliant with Part L 2013 regulations.

• Zero storage of materials on site when using the supply and fit option.

• Excellent U values with a choice of 3 performance options.

• On-site labour radically reduced.

• Enhanced Psi values for use in SAP calculations.

• ‘No void’ option can significantly reduce extraction and spoil removal.

• Reduced thermal bridging.

Cost

Safety

• Fixed price per project.

• Reduced site working and labour.

Quality & Certification

• Provides a level base without camber for ease of timber frame or block construction.

• Installation is not affected by adverse weather conditions.

• Secondary screeds with extended drying times are not required.

• Eliminates variances in on-site labour and materials.

• Potential project savings within Part L. • No hidden costs.

• Zero stock loss.

• Reduced manual handling of beams and blocks.

• Reduced exposure to wet concrete on-site.

• Reduced material deliveries/ vehicular movements on-site.

• Secure working platform established quickly.

Thermal Performance

• Factory made for guaranteed on-site quality detailing.

• Manufactured in factory conditions under a quality system certified to ISO 9001.

• All systems are BBA certified and CE marked.

• Accepted for use on NHBC registered sites.

• Factory build removes site variations of insulation detailing.

• Designed to all relevant BS EN standards.

8

Product Benefits

SERVICE Whether you are planning a future project, wanting to specify a high performance floor or need immediate action on-site, we are here to help.

Job Well Done Spantherm will issue a design certificate complete with the calculations for your project.

Support Even though the installation is straight forward, Creagh is still available for support throughout the process.

First Contact Contact us by phone or email to send us details of your project.

A quick & efficient approach

Quick Response We will respond immediately and if required, arrange a personal visit from one of our team.

Agreement

On receipt of your order we will confirm the delivery schedule, either installation

by Creagh’s expert team or delivery to site for installation by others.

Spec/Quote

We will send you a quotation for your project within 48 hours.

Once ordered we will provide full technical drawings and all relevant calculations.

Contact our technical department Email: spantherm@creaghconcrete.com

9

Flooring

PRODUCT SELECTION SPANTHERM

Floor Element U Value 0.226 W/m2K

U Value of 0.18W/m2K based on a P/A ratio of 0.6

SPANTHERM ADVANCE

Floor Element U Value 0.163 W/m2K

U Value of 0.14W/m2K based on a P/A ratio of 0.6

SPANTHERM PLUS

Floor Element U Value 0.135 W/m2K

U Value of 0.12W/m2K

based on a P/A ratio of 0.6

10

Product Range

Thermal calculations have been carried out for a range of typical perimeter / area ratios in accordance with BS EN ISO 6946 and BS EN ISO 13370.

U-Value (W/m2K) Perimeter / Area Ratio

Spantherm Standard ( 90/90 = 0.038W /m2K)

0.2

0.15

0.3

0.16

0.4

0.17

0.5

0.18

0.6

0.18

0.7

0.19

0.8

0.19

0.9

0.19

1.0

0.19

Perimeter / Area Ratio

Spantherm Advance ( 90/90 = 0.038W /m2K)

0.2

0.12

0.3

0.13

0.4

0.13

0.5

0.14

0.6

0.14

0.7

0.14

0.8

0.14

0.9

0.14

1.0

0.14

Perimeter / Area Ratio

Spantherm Plus

( 90/90 = 0.031W /m2K)

0.2

0.10

0.3

0.11

0.4

0.11

0.5

0.12

0.6

0.12

0.7

0.12

0.8

0.12

0.9

0.12

1.0

0.12

11

Flooring

HOW IT WORKS Spantherm is an innovative insulated concrete solution for ground floors.

8 3 1 2 5

7

PRODUCT KEY: 1200mm wide 375mm deep Spantherm unit

12

1

50mm reinforced concrete

5

End bearing stool

2

EPS insulation

6

Self levelling compound

3

C25/30 structural grout

7

DPC

4

Side bearing stool

8

Cast-in lifting pins

How it Works Each Spantherm floor is constructed from a series of pre-cast insulated concrete units facilitating rapid installation onsite.

Watch our timelapse video to see a floor installed in minutes not days.

www.creaghconcrete.co.uk/spantherm.html INSTALLATION PROCESS 1. The floor is constructed from individual 375mm deep factory cast composite units comprising high performance EPS insulation, steel reinforcement and structural concrete. A range of unit widths are used in each floor layout.

6

2. Each Spantherm floor is manufactured to the customer’s floor plan and loading requirements. The units sit on the inner leaf of the cavity with a 100mm bearing on the ends and on the side of the units where required.

4

3. Each floor is designed to accommodate services such as drainage or water supply via appropriately sized openings which are cast into the units to facilitate fast installation on site.

4. The units are delivered to site ready for installation directly onto the ground works as per the individual building’s specification.

The EPS insulation is butted tightly as the units are installed to optimise the levels of insulation across the floor.

5. Once in position, the units are bonded together with a structural concrete grout.

6. Building on perimeter walls can commence after 3 hours. Full structural strength is achieved in 72 hours, allowing loading of the floor to commence.

7. A finished floor surface ready to accept internal floor finishes is provided by the application of a self-lev elling compound.

13

Flooring

MASONRY Typical block construction with Spantherm insulated concrete floor.

Block and brick construction examples with and without void.

Note: These example drawings are indicative only and all detailing used on site must be confirmed by the building’s designer in compliance with local regulations.

14

Construction Detail

Spantherm Unit End Bearing 50mm PIR cavity wall insulation Provide stepped DPC’s with weepholes at 450mm cts.

External wall DPC Periscope ventilator

(Perpendicular to external wall)

Lightweight block 10mm (nominal) self levelling compound Spantherm composite floor (concrete) Spantherm composite floor (EPS)

Wall insulation should extend at least 150mm below the bearing point

Damp proof course Min. 150mm open void.

Ventilation and drainage should be provided in accordance with normal good practice.

Concrete cavity fill Concrete trench block

Spantherm Unit Side Bearing 50mm PIR cavity wall insulation Provide stepped DPC’s with weepholes at 450mm cts.

External wall DPC Periscope ventilator Wall insulation should extend at least 150mm below the bearing point Concrete cavity fill Concrete trench block

Detailing without void is available on request.

(Parallel to external wall)

Lightweight block 10mm (nominal) self levelling compound Spantherm composite floor (concrete) Spantherm composite floor (EPS)

Damp proof course Min. 150mm open void.

Ventilation and drainage should be provided in accordance with normal good practice.

Detailing without void is available on request.

15

Flooring

TIMBER FRAME Typical timber frame construction with Spantherm insulated concrete floor.

Timber frame construction examples with and without void.

Note: These example drawings are indicative only and all detailing used on site must be confirmed by the building’s designer in compliance with local regulations.

16

Construction Detail

Spantherm Unit End Bearing

Breather Membrane Provide stepped DPC’s with weepholes at 450mm cts.

(Perpendicular to external wall)

140mm Timber frame wall Treated sole plate fixed into Spantherm

External wall DPC Periscope ventilator

Spantherm composite floor (concrete) Spantherm composite floor (EPS)

25mm PIR insulation min.150mm overlap to base of slab and min.100mm overlap to uppermost sole plate

Damp proof course Min. 150mm open void.

Ventilation and drainage should be provided in accordance with normal good practice.

Concrete cavity fill

Concrete trench block

Spantherm Unit Side Bearing

Breather Membrane Provide stepped DPC’s with weepholes at 450mm cts.

External wall DPC Periscope ventilator

25mm PIR insulation min.150mm overlap to base of slab and min.100mm overlap to uppermost sole plate Concrete cavity fill Concrete trench block

10mm (nominal) self levelling compound

Detailing without void is available on request.

(Parallel to external wall)

140mm Timber frame wall Treated sole plate fixed into Spantherm

10mm (nominal) self levelling compound Spantherm composite floor (concrete) Spantherm composite floor (EPS)

Damp proof course Min. 150mm open void.

Ventilation and drainage should be provided in accordance with normal good practice.

Detailing without void is available on request.

17

Flooring

TECHNICAL DETAILS SPANTHERM LOAD SPANS Domestic Live Load (1.5kN/m2)

No Partitions

Floor Finish

Stud Partitions (1kN/m2)

Block Partitions (6kN/m2)

Maximum Clear Span (mm)

100mm Concrete Screed

6150

5850

5000

75mm Concrete Screed

6400

6050

5100

50mm Concrete Screed

6650

6250

5200

25mm Concrete Screed

6850

6500

5300

10mm Self levelling compound*

6400

6050

5250

Note: based on unfactored domestic live load of 1.5kNm2 *Deflection is the limiting factor in this instance.

BEARING

PARTITIONS

INTERMEDIATE BEARING WALL

Partitions can be built off the floor providing these have been allowed for in the design.

Generally 6kN/m blockwork walls run parallel to span (load shared between ribs of adjacent units). Walls that can be built off the floor will be indicated on layout drawings.

Spantherm requires a bearing of 100mm on masonry. Units must be supported as per the construction detail provided for each project.

Where units share an intermediate bearing wall, a minimum bearing of 100mm should be provided in all instances.

GARAGE FLOORS

To comply with the distributed load of 2.5kN/m2 or concentrated load of 9.0kN required for a domestic garage, Spantherm requires a minimum: 50mm concrete screed with a minimum compressive strength of 25N/mm2 reinforced with A142 steel mesh applied directly.

GROUT

Once in position, the units are bonded together with a structural concrete grout.

Grout - C25/30 concrete with an aggregate size of not more than 10mm.

18

Specification

PSI VALUE PERFORMANCE - SPANTHERM PLUS Please note that Psi value performance varies according to the wall configuration.

The following values relate to the wall constructions shown on pages 14-17.

Contact Creagh Concrete for Psi value details of alternative configurations.

Detail Reference

Thermal Transmittance Psi Value ( )

Surface Temperature

Temperature Factor (f)

Temperature Factor (Pass/Fail)

Masonry (perpendicular)

0.109

(0.11)

17.65ºC

0.88

PASS

Masonry (parallel)

0.112

(0.11)

17.39ºC

0.87

PASS

Timber frame (perpendicular)

0.144

(0.14)

17.05ºC

0.85

PASS

Timber frame (parallel)

0.157

(0.16)

16.66ºC

0.83

PASS

Note: BRE thermal modelling. Internal temperature = 20ºC, external temperature = 0ºC. Temperature difference across the model of the junction = 20ºC.

SERVICE OPENINGS

PRODUCT QUALITY

All service holes are formed during the manufacture of the units. Our standard service opening is 200mm x 200mm. Please contact the Spantherm Technical Team if larger openings are required.

Spantherm units are designed to BS EN1992-11:2004 Eurocode 2 - Design of Concrete Structures and BS EN13224:2011- Precast Concrete Products - Ribbed floor elements.

DURABILITY

PRODUCT DIMENSIONS

Spantherm has a designed working life of 50 years in accordance with the requirements of exposure class XC3.

PRODUCT QUALITY Spantherm units are designed to BS EN1992-11:2004 Eurocode 2 - Design of Concrete Structures and BS EN13224:2011- Precast Concrete Products - Ribbed floor elements.

SPANTHERM UNITS Length - determined by layout and load Width 1200mm wide x 375mm deep 900mm wide x 375mm deep 600mm wide x 375mm deep 400mm wide x 375mm deep

SPECIFICATION CLAUSE FLOOR DETAIL The suspended insulated concrete ground floor shall be Spantherm designed to BS EN 13224:2011 by Creagh Concrete Products Ltd comprising 375mm thick precast units of steel reinforced concrete and EPS insulation to achieve a U value of 0.12 w/m2 at a perimeter /area ratio of 0.6. To be installed in accordance with instructions issued by Creagh.

Insulation material – EPS. Certification - BBA certificate No 13/4974.

Creagh Concrete Products Ltd, Thurgarton Lane, Hoveringham, Nottinghamshire, NG14 7JX

13/4974

19

Flooring

GROUND GAS PROTECTION When designing and constructing new buildings it is important to consider the potential risks associated with ground gases including methane, carbon dioxide and radon as well as volatile organic compounds including hydrocarbons.

Specialist manufacturers offer a comprehensive range of construction membranes and associated accessories that provide resistance to a wide variety of contaminants, ground gases and moisture ingress. The selection of an appropriate membrane system will be determined by the Building Designer based on the type of contaminant that the building under consideration requires protection from.

20

This section of the product brochure provides a number of examples of membrane systems which can be utilised to provide either a low-level barrier or high level barrier dependent upon requirements.

Note: These example drawings are indicative only and all detailing used on site must be confirmed by the building’s designer in compliance with local regulations.

Low level application no void.

A gas barrier membrane may be installed below the Spantherm units subject to ground conditions and in compliance with the membrane manufacturer’s installation instructions. The application of a low level membrane is not appropriate where the potential of ground heave exits.

MASONRY (Example 1)

TIMBER FRAME (Example 1)

Low level application detail where vertical distance from the barrier membrane to the finished external ground level does not exceed 225mm.

Low level application detail where vertical distance from the barrier membrane to the finished external ground level does not exceed 225mm.

MASONRY (Example 2)

TIMBER FRAME (Example 2)

Low level application detail where finished exterior ground level exceeds 225mm vertical distance above the barrier membrane. In this application the membrane must be extended up the inner face of the external leaf and exit the cavity above ground level.

Low level application detail where finished exterior ground level exceeds 225mm vertical distance above the barrier membrane. In this application the membrane must be extended up the inner face of the external leaf and exit the cavity above ground level.

21

Flooring Note: These example drawings are indicative only and all detailing used on site must be confirmed by the building’s designer in compliance with local regulations.

Low level application with void.

MASONRY (Example 3)

TIMBER FRAME (Example 3)

Low level application detail where finished exterior ground level exceeds 225mm vertical distance above the barrier membrane. In this application the membrane must be extended up the inner face of the external leaf and exit the cavity above ground level.

Low level application detail where finished exterior ground level exceeds 225mm vertical distance above the barrier membrane. In this application the membrane must be extended up the inner face of the external leaf and exit the cavity above ground level.

High level application.

A gas barrier membrane may be installed on top of the Spantherm units, in which case the membrane must be covered by a sand and cement screed to a minimum depth 75mm.

The barrier membrane must be continuous across the building and installed in compliance with the membrane manufacturer’s installation instructions.

22

MASONRY (Example 4)

TIMBER FRAME (Example 4)

Membrane installed on top of Spantherm floor.

Membrane installed on top of Spantherm floor.

PARTY WALLS Masonry applications.

Where units share an intermediate bearing wall, a minimum bearing of 100mm should be provided in all instances.

MASONRY (Example 5) Block work party wall with void.

MASONRY (Example 6) Block work party wall no void.

Note: These example drawings are indicative only and all detailing used on site must be confirmed by the building’s designer in compliance with local regulations.

23

Flooring

Timber frame applications.

Where units share an intermediate bearing wall, a minimum bearing of 100mm should be provided in all instances.

TIMBER (Example 5) Timber frame party wall with void.

TIMBER (Example 6) Timber frame party wall no void.

Note: These example drawings are indicative only and all detailing used on site must be confirmed by the building’s designer in compliance with local regulations.

24

Handling & Installation

SERVICES HANDLING & INSTALLATION Please refer to our handling and installation guide for full details concerning the safe handling and efficient installation of Spantherm.

SUPPLY & FIT Creagh offer a full supply and fit service subject to project scale and location. In each case we would lay the Spantherm floor onto your pre-prepared groundworks, leaving it fully grouted.

SUPPLY ONLY Creagh can supply Spantherm on a delivered only basis when you prefer installation by your choosen groundworker.

25

Flooring

INDUSTRY ACCREDITATIONS Creagh Concrete has over 40 years’ experience in the design, manufacture and installation of structural precast concrete products across the UK and Ireland.

Known for our innovative approach, we find new solutions for a wide range of applications in a diverse spread of market sectors including construction, civil engineering, house building, agriculture and landscaping.

Our expertise and attention to detail is reflected in our extensive industry accreditations for quality systems, product performance, sustainability and health & safety, indicating that Creagh Concrete are a well proven company and the ideal partner for your next project.

QUALITY SYSTEMS

PRODUCT PERFORMANCE

13/4974

HEALTH & SAFETY

Accredited Contractor CHAS.co.uk

ENVIRONMENTAL

26

Creagh Concrete Products

CREAGH PRODUCTS A range of concrete products for the home builder.

HOMESPAN

Reinforced Flooring for ground and upper floors The HomeSPAN flooring system comprises of flat precast concrete planks generally 600mm wide and 150mm deep. It is designed for residential use in ground and upper floors. HomeSPAN slabs are capable of carrying domestic loading for spans up to 5m.

HOLLOWCORE

Prestressed Flooring ideal for larger spans Creagh Concrete manufactures an extensive range of prestressed Hollowcore flooring units from 150mm to 500mm deep. These products are generally used in upper floors in apartments and multi-storey dwellings.

STAIRS

Precast Concrete Stairs and Landings This product range comprises of straight, return and curved stairs and these are designed and made to order for each individual project. They are available in a range of classes A-C.

27

INNOVATION IN CONCRETE CREAGH CONCRETE PRODUCTS LTD ENGLAND Thurgarton Lane, Hoveringham, Nottinghamshire NG14 7JX Tel: 016 3683 1043 SCOTLAND Cliftonhall Road, 14 Newbridge Industrial Estate Newbridge, Edinburgh EH28 8PJ Tel: 0131 333 5405 IRELAND 38 Blackpark Road, Toomebridge, Co. Antrim, N. Ireland BT41 3SL Tel: 028 7965 0500 ROI: 048 7965 0500

info@creaghconcrete.com

Creaghconcrete.co.uk

STH 02/2018