Verified by manufacturer 3 months ago
1000 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.
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.
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:
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 |
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) | 1000 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) | 45 m. |
Contains Red List materials | No |
Country of product manufacture | United Kingdom |
Material | Polypropylene |