CROMAR VENT3 AIR PERMEABLE MEMBRANE - 50 x 1m **ORANGE**

VENT3® AIR has the ability to allow air to pass through while blocking the passage of water. It is specially designed to have a high degree of air permeability while remaining watertight. VENT3® AIR has a waterproof layer that prevents water from entering the roof structure. This helps prevent condensation within the roof structure, which can lead to rot, mold, and reduced insulation efficiency. Key features • Available in 1m width rolls • UV and water resistant • Excellent hydrophobic qualities • >66 m3/m2/hr @ 50 Pascals to BS EN 12114 • No vapour control layer needed • Eliminates the need for additional ventilation • For use under tiles and slates as a pitched roof underlay • Compliant for use in zones 1-3 on a 345mm battened lap – without the need for taping.