Visqueen Low Permeability Gas Membrane 4m x 12.5 (50sqm) 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. Features & benefits BBA certified - third party accreditation Complies with NHBC Amber 1 - suitable for low gas risk NHBC housing sites Flexible - easy to detail and install on site Supplied centre folded - reduces the risk of cracks in screed and limits creases Multi functional - also acts as a radon and damp proof membrane Dual jointing methods - lap joints can be taped or heat welded

Read more less

Radon Membrane Size: 4M x 20M This product is manufactured from an enhanced blend of polymer films that is suitable for use in the protection of buildings from the ingress of radon gas.  Visqueen Radon Membrane also acts as a damp proof membrane, but is not intended for use where there is the risk of hydrostatic pressure. Benefits of Visqueen Radon Membrane Independently tested for radon resistance BBA Certified High resistance to puncture Also acts as a Damp Proof Membrane Complies with BR 211: 2007 ApplicationVisqueen Radon Membrane should be overlapped by at least 150mm and sealed using Visqueen DPM Double Sided Jointing Tape. The joint should be secured with a Single Sided Jointing Tape.  Visqueen Radon Membrane should be covered by a protective layer as soon as possible after installation. A minimum thickness of 50mm screed is recommended. When reinforced concrete is to be laid over the barrier the wire reinforcements and spacers must be prevented from contacting the barrier.

Read more less