The 1m x 50m Roofshield Air & Vapour Permeable Roofing Membrane is a premium, non-woven spunbonded polypropylene underlay engineered with a patented melt-blown core. Recognized as an industry benchmark for pitched roof protection, it functions as both an air- and vapour-permeable barrier, facilitating natural air movement through the roof structure to eliminate the risk of interstitial condensation without requiring additional ridge or eaves ventilation.
 
Featuring a high water-resistance rating (Class W1 under EN 13859-1), it acts as a robust secondary defense against wind-driven rain, snow, and dust during and after construction. Its exceptional permeability allows building moisture to escape dynamically, making it fully BBA-certified for both warm and cold non-ventilated pitched roof configurations.
 
Supplied in a 1m x 50m roll format covering 50m², it offers a versatile, easily handled footprint for slaters and tilers. It is tear-resistant, UV-stable for temporary site exposure, and suitable for installation directly over rafters, counter battens, or timber sarking boards across residential and commercial developments.