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.
Gauge / Mil
WVTR (Water Vapor Transmission Rate)
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
Visqueen Low Permeability Gas Membrane is suitable to prevent the ingress of harmful levels of ground gases for housing applications where NHBC are the warranty provider and the site has been classified as Amber 1. In this application, the membrane is used above a precast suspended segmental ground floor system, for example a beam and block floor.
The membrane can also be used as a high performance radon membrane and/or damp proof membrane positioned within the ground floor construction either above or below the structural floor.