Visqueen Gas Barrier

Visqueen Gas Barrier is a multi-layer reinforced polyethylene gas barrier membrane incorporating a 20 micron aluminium foil core, providing highly effective protection against methane, carbon dioxide, radon and other ground gases. The membrane is blue on the upper surface and silver on the reverse, and is supplied in single wound (not folded) rolls measuring 2m x 50m.

The membrane complies with the methane gas transmission rate, mass per unit area and thickness requirements of BS 8485:2015+A1:2019 for methane and carbon dioxide protection, and with NHBC Foundation's NF94 guidelines for use in Type A membrane locations. It also provides radon and damp proof membrane protection.

Benefits

• Multi-layer reinforced polyethylene gas barrier with 20 micron aluminium foil
• Methane and CO2 protection to BS 8485:2015+A1:2019
• Also provides radon and damp proof membrane protection
• BBA Agrement certified

Good to know 

• This product must not come into direct contact with uncured concrete or screed due to the aluminium foil core.
• Lap joints can be taped or heat welded
• Visqueen Gas Barrier should be installed on a smooth continuous surface e.g. grouted beam and block floor, a compacted blinding layer e.g. 50mm thick sand blinding, or smooth concrete blinding.
• When installing the barrier in demanding site conditions, or where specified, use Visqueen NF-150 Lap Tape (in conjunction with the double sided tape) to seal the lap.