It is designed to form an airtight layer within the building envelope. With a W1 water resistance classification, Permavent BLACK is suitable for pitched roofing and walling applications. Slating and tiling for pitched roofs and vertical cladding.
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Coverage: 50sqm roll. Pitched roofing projects. Tile and slate roof underlay. Provides protection against wind, rain, and dust. House wrap and wall applications.
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BS 5534: 2014 Code of practice for slating and tiling. Elongation at max. tensile force (MD), % 100. tensile force (CD), % 100. Maximum tensile force (MD), N/50mm 240. Water vapour transmission (sd),m 0.02.
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This listing is for 1 meter of breathable membrane. 1m x 1m. CROMAR VENT 3 High Performance. Buy as many meters as you like by simply increasing the quantity. This way you have no waste! Please ring on 07717895699 / 01612226263 for any further info.
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YBS Roofers Choice is made from Non Degradable Polyfin Materials with a lamination on either side. Roofers Choice is User Friendly and doesn't require any protective clothing. Call us for Technical Support, Advice and assistance with calculations or ordering.
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Product is tested to EN 13859-1 and is CE certified. LABC Certified. Length: 50m. It is suitable for use as a full supported or unsupported underlay beneath tiled or slated pitched roofs, in warm or cold non-ventilated and cold ventilated roofs.
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Due to the light and screen difference, the item's color may be slightly different from the pictures. Color: As picture show. Length: 500cm.
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