Glidevale Protect A1® Solar - Impermeable Roofing Underlay
Verified by manufacturer 4 months ago
1500 mm-wide rolls
1500 mm-wide rolls
BM Trada
Certificate type
Heavy-duty type HR impermeable roofing underlay, designed for all cold and warm pitched roofs, where in-roof solar PV panels are installed.
Application
The product can be used for all pitched roof constructions (tiled and slated), whether the insulation is at ceiling joist level or at rafter level.
Description
Protect A1® Solar is a high performance, heavy-duty type HR roofing underlay. Used in conjunction with high and low level ventilation, Protect A1 Solar reduces the risk of condensation forming on the underside of solar PV panels and therefore lowers the risk of rotten timbers. Due to the impermeable design and high resistance to vapour transfer, there is no need for a ventilated counter batten space above the membrane, saving time and material costs.
Features and benefits:
- No need to install additional counter battens above the membrane, reducing time and material costs.
- Ideal membrane solution to support the growth of in-roof solar PV on new build and refurbishment, as detailed in Building Regulations Part L 2021 and the Standard Assessment Procedure (SAP).
- Used in conjunction with high and low level ventilation, Protect A1 Solar can help you meet BS 5250 ventilation requirements.
- Has ‘unrestricted’ use for wind uplift in all exposure conditions in the UK and Ireland at 345 mm batten gauge (1732 Pa) without the need for additional sealing tapes.
- Completely water and airtight.
- Excellent nail tear and tensile strength.
- UV & heat resistant.
- Easy to cut and handle.
- Absorbent under-surface prevents condensate drip-off.
- BM TRADA certified.
- UKCA and CE marked.
- Produced in the UK.
General information
Color | Grey |
Finish | Embossed |
Material | Polypropylene |
Shape | Rectangle Guidance for specification option: Roll. |
Length | 30000 mm Guidance for specification option: 1500 mm-wide. 45000 mm Guidance for specification option: 1000 mm-wide. |
Width | 1000 mm 1500 mm |
Uniclass | |
CAWS | H61/5 Roof slating H60/3 Roof tiling H62/3 Roof slating H64/10 Wood shingle/ shake roofing H65/10 Reconstituted slate roof tiling H60/120 Concrete roof tiling H60/105 Clay roof tiling H61/105 Roof slating H62/125 Roof slating H62/105 Roof slating H62/145 Roof slating H64/110 Wood shingle/ shake roofing H65/135 Ceramic slate roof tiling H65/105 Clay roof tiling H65/115 Concrete roof tiling H65/125 Reconstituted slate roof tiling H67/110 Metal roof tiling H67/5 Metal roof tiling H65/5 Roof tiling |
Specification data - Polymeric membranes
Material | Polypropylene. |
Standard | BS EN 13859-1, BS 5250, BS 5534; NHBC STANDARDS. |
Performance characteristics | |
Tensile properties | Manufacturer's standard.Guidance for specification option: Machine direction (along roll):
Cross direction (across roll):
|
Tear resistance | Manufacturer's standard.Guidance for specification option:
|
Third-party certification | BM TRADA Certified. |
Width (minimum) | 1500 mm. |
Thickness (minimum) | 0.6 mm. |
Colour | Dark grey.Guidance for specification option: Embossed dark grey upper and lower surface. Printed with white product branding for ease of identification. |
Class (minimum) | W1. Guidance for specification option: >2.0m hydrostatic head of water resistance Manufacturer guidanceResistance to water penetration to BS EN 1928 |
Wind resistance | Zones 1–5. Guidance for specification option: Wind uplift resistance (at 345 mm batten gauge) and 600 mm rafter centres - 1732Pa |
Purpose | Roofing underlay (impermeable). |
Water vapour resistance (minimum) | 112 MNs/g. |
UV stabilization | Manufacturer's standard. Guidance for specification option: UV and heat ageing conditions: UVA lamps at 50°C for 336 hours followed by heat ageing at 70°C for 90 days. |
Form | Non-woven, spunbonded. Guidance for specification option: Twin ply construction with a polymeric composition, comprising of a polypropylene non-woven layer, coated on one surface with a continuous film of polypropylene / polyethylene blend |
Weight (minimum) | 145 g/m². Guidance for specification option: 7.5 kg per roll. |
Roll length (minimum) | 30 m. |
Sustainability data
Contains Red List materials | No |
Country of product manufacture | United Kingdom |
Material | Polypropylene |
Third party certifications
BM Trada
Protect A1 BM TRADA Certificate No CPS-008
BM Trada
Protect A1 BM TRADA Schedule No CPS-008
Literature
Glidevale Protect A1 Solar
Building Healthy Solutions for Offsite
Case studies
A blueprint for sustainable social housing at Samlet Road development.