Product Description Visqueen Low Permeability Gas Membrane is a robust co-polymer thermoplastic gas membrane, 0.5mm thick, yellow in colour and supplied 4m x 12.5m in a center folded roll.Complies with NHBC Amber 1 - suitable for low gas risk NHBC housing sitesFlexible - easy to detail and install on siteSupplied centre folded - reduces the risk of cracks in screed and limits creasesMulti functional - also acts as a radon and damp proof membraneDual jointing methods - lap joints can be taped or heat welded
