Protect Wunderlay - impermeable LR roofing underlay and a modern lightweight alternative to traditional 1F felts and second generation plastic materials with many benefits. Easy to cut and proven time saving benefits over traditional felts. Protect A1 can be installed without the need to without the need to seal the laps, ensuring fortuitous ventilation. Achieves Zones 1-4 wind uplift to BS 5534 in the UK and Ireland, with good tensile strength and nail tear resistance. The product is waterproof and can be used as a temporary roof covering, also providing a secondary line of defence against wind driven rain and snow. Independently certified by BM TRADA for added reassurance. Completely water and air tight, with hydrostatic head of water resistance of >2.0m. Produced in the UK.
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