Page 1

Flat Roofing and Waterproofing Systems

Uniclass

G321:G24 L414

CI/SfB (37.41) December 2004

Alumasc Daylighting Systems


Flat Roofing & Waterproofing Systems Daylighting Systems Introduction

Contents Introduction

2

Alumasc A Range Superior Modular Rooflights

4

Alumasc B Range Standard Modular Rooflights

6

Modular 2000 Ultra Interlocking Glazing

8

Modular 2000 Express Interlocking Glazing

9

Continuous Barrel Vault Rooflight

10

Skylight Glazing Systems

12

Ventilation

14

Modular Rooflights Product Selector and Range Summary 15

Natural daylight significantly improves the internal environment of a building and can reduce energy costs. To function effectively, buildings must have appropriate, adequate lighting, subject to the guidance and limitations set out in the current Building Regulations (Part L - England and Wales, Regulation 22 Part J - Scotland). Rooflights are the ideal way to provide good natural lighting.

Natural Daylight ■ Improves concentration ■ Leads to better productivity ■ Creates better quality environments for people


Flat Roofing & Waterproofing Systems Daylighting Systems Modular Rooflights and Made to Order

Daylighting Systems – the Illuminating Choice Made to Order Daylighting Systems

Modular 2000 – is an interlocking glazing system, available in two design options. Modular 2000 Ultra is an extra robust system, while Modular 2000 Express is designed for rapid installation.

Modular Rooflights Modular rooflights from Alumasc are specially designed to meet the growing demands of the flat roofing market. Offering a complete range of options, they are the ideal choice for providing natural daylight into a diversity of commercial, industrial and domestic buildings.

Continuous Barrel Vault Rooflights – practical architectural glazing that can be linked in many

Key Benefits

configurations.

■ The unique kerb design of Alumasc Modular Rooflights incorporates security and waterproofing features that create a reliable, safe and secure rooflight ■ The kerb has been designed to allow horizontal termination of the waterproof membrane, making water penetration virtually impossible ■ All glazing in the range is moulded from Marlon FSX Longlife, premium quality solid polycarbonate, offering an impact resistance up to 200 times that of glass ■ Alumasc A Range and B Range rooflights feature a unique lock-bolt security system. This ensures a secure and fast installation

Skylight Glazing Systems – A Range superior domed rooflights

B Range regular domed rooflights

extremely versatile and varied,

provide a high level of security with a

offer the same ‘lock-bolt’ security

including gable ended, hip ended and

smooth, clean appearance. The hidden

system as A Range, allowing an accurate

pyramid options, as well as attractive

‘lock-bolt’ security system reduces the

and fast installation. The security caps

lantern lights.

risk of a break-in through the rooflight.

encase each of the rooflight fixings.


Flat Roofing & Waterproofing Systems Daylighting Systems Modular Rooflights Alumasc A Range

Alumasc A Range – Superior Modular Rooflights Alumasc A Range are superior modular dome rooflights providing high levels of security and waterproofing. The ‘lock-bolt’ security system means installation of the rooflight is straightforward, precise and secure. Removal of the glazing can only be achieved with the use of a ‘lock-bolt’ security opening device.

Key Benefits ■ Maximum security dome rooflight ■ Smooth clean appearance ■ Lock-bolt security system ■ Complete waterproof integrity with the roofing membrane ■ High performance insulated kerb

The aluminium reinforced rigid PVC-U frame gives a clean and smooth finish, greatly enhancing the aesthetics of the rooflight. The PVC-U frame also conceals all the fixings of the unit, acting as a deterrent to the opportunistic intruder.

New kerb for fast efficient installation

Thermal Properties

Unique to the flat roofing market, the Alumasc kerb is designed to allow roof coverings to be terminated horizontally at the upper edge of the kerb wall. This practice improves the weathering detail of the rooflight.

U value (Triple skin glazing)

2.0 W/m2K

U value (Double skin glazing)

3.0 W/m2K

U value (Cellular PVC Kerb)

1.7 W/m2K

Light Transmission (3mm single skin) Clear

90% - Direct light

Bronze

44% - Direct light

Opal

53% - Diffused light

Textured

73% - Diffused light

Impact Resistance Up to 200 times greater than glass

1 1

2

Rigid PVC-U frame

Fragility Fully fixed rooflights, when tested by the

Lock-bolt security system

methods described in ACR[M]001: 2000 and

3

Horizontal membrane termination

Options

4

225mm high kerb

2 3

4

prEN1873, are classified as non-fragile Glazing

Single, double or triple skin polycarbonate

Kerb

Cellular PVC, cellular dome

Profile

Curved dome, circular dome, trapezoidal or pyramid profile

Tint

Clear, bronze or opal tint or textured glazing option

Ventilation (See page 14)

Hit & miss trickle vent Manual or electrical openings Access hatch

Fire Rating

BS 476 Part 7: Class 1 (1991) Class ‘0’ Tp(a)

Alumasc A Range will not compromise the waterproofing of the roof because the kerb has been designed to allow the roof covering to terminate horizontally on the upper edge of the kerb wall. The waterproofing membrane is clamped into place by the ‘lock-bolt’ security system once the glazing is attached to the kerb. The attractive design of Alumasc A Range rooflights integrates well with any flat roof membrane system. The white internal finish of the kerb means the rooflight blends with any interior décor. Alumasc A Range rooflights are available in a curved dome or pyramid profile and in a wide range of sizes. A full range of ventilation options is also available. Alumasc A Range is particularly suited to applications such as schools, hospitals, sports and leisure centres, offices and other buildings where security is of particular concern.


Flat Roofing & Waterproofing Systems Daylighting Systems Modular Rooflights Alumasc A Range

1

Tall kerb simplifies installation

2

A kerb height of 225mm allows the designer to determine the most appropriate way of fixing the rooflight to the roof structure.

Kerb options

Insulation

3

Where a non-standard roof opening exists, kerb adaptors can be specified to provide an exact fit into the prepared builder’s upstand.

The combination of a cellular PVC kerb with matching standard glazing guarantees optimum insulation.

8

7

1

5 4 2 6 3

4

Designed for security

5

High security is achieved through the unique ‘lock-bolt’ security system fixing the glazing to the base. This security-lock mechanism can only be opened using a ‘lock-bolt’ opening device.

Pyramid dome

7

The ‘lock-bolt’ security system facilitates fast efficient installation. A series of latches, on the underside of the glazing unit, lock into the kerb, instantly giving a secure watertight fit. 6

Curved dome

Simple fixing

Horizontal membrane termination The roofing membrane, when brought over the top edge of the kerb, is secured by the ‘lock-bolt’ security system, making water ingress virtually impossible.

Superb impact resistance The polycarbonate glazing has an impact resistance almost 200 times that of glass, creating a very safe rooflight option. It has co-extruded UV protection and eliminates 98% of harmful radiation.

8

Smooth appearance The PVC-U frame with aluminium reinforcement conceals all fixings creating a smooth, clean appearance.


Flat Roofing & Waterproofing Systems Daylighting Systems Modular Rooflights Alumasc B Range

Alumasc B Range – Standard Modular Rooflights Alumasc B Range are regular modular dome rooflights distinguished by their speed and accuracy of installation on flat roofs. The ‘lock-bolt’ security system means less time is required to fix the rooflight to the structure. The fixings required for installation are supplied pre-fitted to the glazing.

Key Benefits ■ High security dome rooflight ■ Lock-bolt security system ■ Designed for horizontal membrane finish ■ Polycarbonate impact resistant glazing ■ High performance insulated kerb

The factory fitted security caps on Alumasc B Range encase each of the fixings, offering more reliable waterproofing and reducing the likelihood of forced entry through the rooflight. Superior thermal insulation is achieved by the combined properties of the cellular PVC kerb and double or triple skin polycarbonate glazing.

New kerb for fast efficient installation

Thermal Properties

Unique to the flat roofing market, the Alumasc kerb is designed to allow roof coverings to be terminated horizontally at the upper edge of the kerb wall. This practice improves the weathering detail of the rooflight.

U value (Triple skin glazing)

2.0 W/m2K

U value (Double skin glazing)

3.0 W/m2K

U value (Cellular PVC Kerb)

1.7 W/m2K

Light Transmission (3mm single skin) Clear

90% - Direct light

Bronze

44% - Direct light

Opal

53% - Diffused light

Textured

73% - Diffused light

Impact Resistance Up to 200 times greater than glass

Fragility

1 1

Security caps

Fully fixed rooflights, when tested by the methods described in ACR[M]001: 2000 and

2 3

4

2

Lock-bolt security system

prEN1873, are classified as non-fragile

3

Horizontal membrane termination

Glazing

4

225mm high kerb

Options Single, double or triple skin polycarbonate Kerb

Cellular PVC, cellular dome

Profile

Curved dome, circular dome,

Tint

Clear, bronze or opal tint or

Ventilation

Hit & miss trickle vent

trapezoidal or pyramid profile textured glazing option (See page 14)

Manual or electrical openings Access hatch

Fire Rating

BS 476 Part 7: Class 1 (1991) Class ‘0’ Tp(a)

Alumasc B Range has exceptional waterproofing integrity. Water ingress is virtually impossible as the waterproofing membrane can be applied to the full height of the kerb and terminated horizontally. When the glazing is fitted to the kerb using the ‘lock-bolt’ security system the waterproofing membrane is secured firmly in place. Alumasc B Range rooflights are available in a curved dome or pyramid profile and in a wide range of sizes. A complete range of ventilation options is also available. Alumasc B Range is suited to applications such as schools, hospitals, sports and leisure centres, private houses, offices and other heated buildings where insulation, weatherability and security are important factors.


Flat Roofing & Waterproofing Systems Daylighting Systems Modular Rooflights Alumasc B Range

1

Tall kerb simplifies installation

Kerb options

2

A kerb height of 225mm allows the designer to determine the most appropriate way of fixing the rooflight to the roof structure.

3

Kerb options specially designed to suit specific roof finishes are available.

Insulation The combination of a PVC base with matching standard dome guarantees optimum insulation.

8

4

1

5 6

2

7

3

4

Security caps

6

The ‘lock-bolt’ system facilitates fast effective installation. A series of latches, on the underside of the glazing unit, lock into the kerb, instantly giving a secure watertight fit.

Fixings are concealed within security caps which are impossible to open. 5

Anti-intruder High security is achieved through the unique ‘lock-bolt’ security system between the dome and the kerb.

Curved dome

Pyramid dome

Simple fixing

7

Mechanically secured membrane The roofing membrane can be brought to the top of the kerb and secured with the ‘lock-bolt’ security system. The edge of the roofing material is covered by the glazing, making water ingress virtually impossible.

8

Superb impact resistance The polycarbonate glazing has an impact resistance almost 200 times that of glass, making a very safe rooflight option.


Flat Roofing & Waterproofing Systems Daylighting Systems Made to Order Daylighting Systems Modular 2000 Ultra - Interlocking Glazing

Modular 2000 Ultra – Interlocking Glazing Key Benefits ■ Ideal for mono or dual pitch glazing, northlight replacement, covered walkways and canopies ■ System achieves Class B non-fragility and the 1.6W/m2K U-value easily complies with Building Regulations Part L Before

■ Extremely high loading performance: 2.0kN at 4.5m span ideal for high snow or wind loads

After

Modular 2000 Ultra Glazing is a robust and versatile, non-fragile panel glazing. It features elegantly designed and well finished interlocking aluminium frame panels, glazed in 25mm structured polycarbonate, which link to fit any run length.

■ Spans up to 4.5m between supports and up to 9m as ridge glazing (with a central support by others) ■ Panels are fully factory assembled for fast and simple site installation without glazing experience

Closure bar 2mm flexible aluminium Second glazing panel Second bar

56mm First bar

Rivet

First glazing panel

Capping bar I-beam glass fibre thermal back Base bar Supporting structure

70mm

Technical Specification Structure Integral main profile assembly comprises top and bottom extruded aluminium cappings to BS 1474 and a main structural glass reinforced, polyester resin pultruded profile. The main profile assembly is designed with internal water management and a fully shielded seal system. Available in mill finish or powder coated white to RAL 9910. Other colours available on request for an additional charge. Fixings should be high quality stainless steel, of a type and frequency suitable for the substructure to which the panels are being fixed. Stainless steel greatly reduces the possibility of an electrolytic reaction at the bar/fixing interface.

1250mm between glazing centres

Transport & Handling Alumasc Modular 2000 Ultra panels are delivered to site with a protective film covering the glazing – this must be removed after installation. Panels to be stored in clean dry conditions, protected against direct sunlight, in an upright position – to avoid any damage to the product.

70mm

Performance Panel width

Up to 6000mm

Typical span capacity

4500mm between supports

Weight

6.0kg/m2 (approx)

Safety

Non-fragile Class B to ACR[M]001: 2000

Wind and snow loading

2kN at 4.5m span

Light transmission

Clear Bronze Opal

Glazing 25mm structured polycarbonate UV protected. Solar control available at extra charge. For information about polycarbonate product care please contact Alumasc.

Up to 1250mm

Length

68% 15% 30%

U-value

1.6W/m2K

Fire regulations

BS 476 Part 7: Class 1 (1991) Class ‘0’ Tp(a)


Flat Roofing & Waterproofing Systems Daylighting Systems Made to Order Daylighting Systems Modular 2000 Express - Interlocking Glazing

Modular 2000 Express – Interlocking Glazing Key Benefits ■ Ideal for mono or dual pitch glazing, northlight replacement, covered walkways and canopies ■ Flat profile extruded aluminium bars, which when linked behave as one, allow simple flashing detail ■ Glazing bars include an PVC-U under cloak for good thermal performance ■ For low U-value glazing, specify 16mm special polycarbonate (see table below)

Modular 2000 Express Glazing is a quick to install, flat profile panel glazing. It features elegantly designed and well finished interlocking aluminium frame

■ Panels are fully factory assembled for extremely fast and simple site installation without glazing experience

panels, glazed in 16mm structured polycarbonate, which link to fit any run length.

Step 1

2: Pivot downwards 1: Slot in

Closure bar 2mm flexible aluminium

Secondary bar Primary bar

PVC-U underclad (thermal cloak) Step 2

3: Seamless link

End support beam

70mm

Up to 1005mm between glazing centres

Technical Specification Structure Aluminium side profiles to BS 1474. One main bar and one secondary bar, which when linked behave as one. Both profiles are complete with water managed systems and are designed to work in a seal-less format. Available in mill finish or powder coated white to RAL 9910 BS 6496. Other colours available on request for an additional charge. A high quality extruded PVC-U undercladding profile clips to the main profile to enhance the thermal properties of the assembly and reduce the possibility of condensation. Fixings must be high quality stainless steel, of a type and frequency suitable for

70mm

the substructure to which the panels are being fixed. Stainless steel greatly reduces the possibility of an electrolytic reaction at the bar/fixing interface.

Transport & Handling Alumasc Modular 2000 Express panels are delivered to site with a protective film covering the glazing - this must be removed after installation. Panels to be stored in clean dry conditions, protected against direct sunlight, in an upright position - to avoid any damage to the product.

Glazing 16mm structured polycarbonate UV protected. Solar control available at extra charge. For information about polycarbonate product care please contact Alumasc.

Performance Panel width

Up to 1005mm

Length

Up to 6000mm

Typical span capacity

1800mm between supports for 1005mm panel

Weight

4.5kg/m2 (approx)

Wind load

Standard Reinforced option

0.7kN/m2 1.2kN/m2

Light transmission

Clear Bronze Opal

82% 31% 51%

U-value

16mm standard 16mm special

2.4W/m2K 2.0W/m2K

Fire regulations

BS 476 Part 7: Class 1 (1991) Class ‘0’ Tp(a)


Flat Roofing & Waterproofing Systems Daylighting Systems Made to Order Daylighting Systems Continuous Barrel Vault Rooflights

Continuous Barrel Vault Rooflights Key Benefits ■ Versatile system, can be linked in many configurations ■ High performance, low U-value and non-fragile options ■ Installation by experienced, reliable fixing teams ■ Constructed from well engineered extruded aluminium sections in mill finish or powder coated and glazed in structured polycarbonate or double skinned solid polycarbonate ■ Fully water managed using interconnecting gutter design and gasket system to ensure safe moisture drainage ■ Manual and electrically opening sections available

Attractive and versatile architectural glazing with excellent weather resistance and durability, widely specified for schools, public buildings and domestic projects where reliability is paramount.


Flat Roofing & Waterproofing Systems Daylighting Systems Made to Order Daylighting Systems Continuous Barrel Vault Rooflights

Performance Length

Any length

Typical span capacity

Up to 5m

Loading

Designed in accordance with data from: BS 6399: Part 1 & Part 3 1984 Max 1.5kPa wind & 0.75kPa imposed

Safety

ACR[M]001: 2000 Class B option available

Light transmission 1

Fixing screws

2

Mastic seal

Glazing in structured and solid polycarbonate: clear, opal or bronze. Consult technical for

1

exact values

2 3

Builders upstand 150mm min height x 75mm thick

4

Roofing membrane

5

Internal upstand measurement

6

External upstand measurement

U-value

1.6W/m2K

Fire regulations

BS 476 Part 7: Class 1 (1991) Class ‘0’ Tp(a)

4 3

6

5

Standard A

Standard B

Major range

Plan

Side view

End view

External upstand length

Measurements taken from external upstand width

External upstand length

External upstand length

Measurements taken from external upstand width

Measurements taken from external upstand width

Glazing - structured polycarbonate Span width

10mm thick

16mm thick

16mm thick

25mm thick

1.5m - 2.4m

2.4m - 3m

3m - 5m

3.75m - 5m

Glazing - solid polycarbonate: single or double skin 10mm thick

16mm thick

16mm thick

25mm thick

up to 2m

2m - 3m

3m - 5m

3m - 5m


Flat Roofing & Waterproofing Systems Daylighting Systems Made to Order Daylighting Systems Skylight Glazing Systems

Skylight Glazing Systems A wide choice of skylight glazing that includes gable ended, hip ended and pyramid options – extremely versatile and cost effective.

Key Benefits ■ Versatile systems, can be linked in many configurations ■ High performance, low U-value and non-fragile options ■ Installed by experienced, reliable fixing teams ■ Constructed from well engineered extruded aluminium sections in mill finish or powder coated, and glazed in structured polycarbonate or double glazed glass – toughened outer and laminated inner

Gable ended

■ Fully water managed using interconnecting gutter design and gasket system to ensure safe moisture drainage

Skylight Lanterns Hip ended

Gable ended lantern

Pyramid

Span width Glazing - structured polycarbonate 10mm thick

Up to 2.4m

16mm thick

2.4m to 3m

25mm thick

3.75m to 5m

Hip ended lantern

Glazing - double glazed glass 10mm thick

Up to 1.2m

16mm thick

1.2m to 2m 2m+ please consult

Pyramid lantern


Flat Roofing & Waterproofing Systems Daylighting Systems Made to Order Daylighting Systems Skylight Glazing Systems

Performance Length

Any length

Typical span capacity

Up to 5m

Loading

Designed in accordance with data from: BS 6399: Part1 & Part3 1984 Max 1.5kPa wind & 0.75kPa imposed

Safety

ACR[M]001: 2000 Class B option available

Light transmission

Glazing in glass or structured polycarbonate: clear, opal or bronze. Consult technical for exact values

U-value

Part L: below 2.0W/m2K options available. Consult technical for exact values

Fire regulations

BS 476 Part 7: Class 1 (1991) Class ‘0’ Tp(a)

1

1

Fixing screws

2

Mastic seal

3

Builders upstand 150mm min height x 75mm thick

4

Roofing membrane

5

Internal upstand measurement

6

External upstand measurement

2

4 3

6

5


Flat Roofing & Waterproofing Systems Daylighting Systems Ventilation

Ventilation Ventilation Options To ensure a pleasant, healthy environment in buildings the relationship between insulation, heating and ventilation must be correct. Minimum acceptable levels for both insulation and ventilation are included in Parts L and F of the Building Regulations. Alumasc Daylighting Systems offer a number of options giving customers the opportunity to choose the most appropriate ventilation for their building.

Rapid Ventilation

1

Hinged Access Available in both manual and powered opening options, these units are supplied with a single or tandem operating actuator which can extend to a maximum of 300mm.

2

1

Polycarbonate glazing

2

Electrically powered activator

3

Cellular PVC kerb

1

Polycarbonate glazing

2

Rigid PVC-U outer frame

3

Telescopic stay

4

Cellular PVC kerb

3

The manual option is opened via a worm gear drive operated from floor level using an extension pole. The electrically powered alternative includes a small motor operated from a 240V main supply and the kit includes a control switch to open and close the rooflight.

Rapid Ventilation

1 2

Access Hatch To gain entry onto the roof, either for maintenance purposes or as an emergency exit, the glazing unit is held open at nearly 90ยบ by two telescopic stays.

3

4

Access Hatch

Background Ventilation

Installation and Maintenance

Background ventilation can be achieved by fixing either permanent or hit and miss trickle vent adaptors onto the kerb above the waterproofing membrane. These frames have two 4000mm2 ventilation slots which when open, permit a natural air flow in either direction.

Detailed installation and maintenance manuals are available for all daylighting products upon application to Alumasc Technical Services on 01744 648400.

Background Ventilation


Flat Roofing & Waterproofing Systems Daylighting Systems Modular Rooflights Product Selector and Range Summary

Product Range Roof Opening

Double

Daylight Opening

Hit & miss

Manual

Electrical

size (mm)

or triple skin

size (mm)

trickle vent

opener

opener

A Range

B Range

600 x 600

450 x 450

600 x 900

450 x 750

600 x 1500

450 x 1350

750 x 750

600 x 600

750 x 900

600 x 750

900 x 900

750 x 750

900 x 1800

750 x 1650

1050 x 1050

900 x 900

1050 x 1500

900 x 1350

1200 x 600

1050 x 450

1200 x 900

1050 x 750

1200 x 1200

1050 x 1050

1200 x 1500

1050 x 1350

1200 x 1800

1050 x 1650

1200 x 2400

1050 x 2250

1350 x 1350

1200 x 1200

1500 x 1500

1350 x 1350

1800 x 1800

1650 x 1650

Access hatch

A Range

B Range

A Range

B Range

A Range

B Range

A Range

B Range

✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓ ✓ ✓

✓ ✓

✓ ✓

Curved profile Pyramid profile

Daylight opening

Daylight opening

Roof opening

Roof opening


Alumasc is now firmly established as one of the leading manufacturers of premium building and construction products. A unique heritage combined with vast experience and craftsmanship derived from all corners of the industry, gives the platform to provide specifiers with one of the most diverse product portfolios available on the market. Highly regarded throughout the UK and Europe, a number of Alumasc brands are now established as world leaders in their field.

Alumasc has a firm commitment to customer service and operational excellence. This together with the company’s combined experience ensures that Alumasc understands individual needs, providing a first class service from initial design through to completion and beyond.

Architectural Rainwater Systems

Head Office Alumasc Exterior Building Products Ltd

Engineered Drainage Systems

White House Works, Bold Road, Sutton, St Helens, Merseyside WA9 4JG

Flat Roofing & Waterproofing Systems

Tel: +44 (0)1744 648400 Fax: +44 (0)1744 648401

Metal Roofing Systems Email: info@alumasc-exteriors.co.uk Façade Systems

All reasonable care has been taken in the preparation of this manual, all information, recommendations and guidance notes on the use of The Products are made without guarantee since the conditions of use are beyond the control of Alumasc Exterior Building Products Limited (The Company). The customer is responsible for ensuring that each product is fit for its intended purpose and that conditions for use are suitable. The information contained in this brochure and advice arising therefrom is free of charge and accordingly on the terms that no liability nor liability for negligence will attach to The Company or its servants in relation to any such service arising out of or in connection with this brochure. The Company pursues a policy of constant product development and information contained in this publication is therefore subject to change without notice.

www.alumasc-exteriors.co.uk

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