Created with Eselt - eBay Listing Template Editor eBay.co.uk Give us a call Send us a message Created with Eselt - eBay Listing Template Editor - Our Store - Seller Profile - Feedback - About us - Contact Created with Eselt - eBay Listing Template Editor CROMAR Breather Membrane Roof Felt Vent 3 Classic BBA Approved Grey 1.5m x 50m DESCRIPTION: Vent3 Classic is a middle of the range, triple layer fabric, high performance breather membrane, made from high tensile spun bonded polypropylene layers, around a micro-porous polypropylene film. Designed for use as a universal breather membrane for roofs and walls boasting superior moisture vapour permeability. Vent3 Classic has a printed (light grey) upper surface with preprinted marking lines.