Visqueen Gas Barrier 2m x 50m RS074397

Product Overview:

Visqueen Gas Barrier is a multi-layer reinforced polyethylene gas barrier with a 20 micron aluminium foil. The barrier is coloured blue on the upper surface and silver on the reverse. The product is supplied in single wound rolls (not folded), 2m x 50m.

Features & benefits

• BBA certified - third party accreditation
• Complies with NHBC Foundation’s NF94 guidance for use in Type A membrane locations
• Complies with the methane gas transmission rate, mass per unit area and thickness requirements of BS 8485:2015 + A1:2019 - industry standard for methane and carbon dioxide protection
• Flexible - easy to detail and install on site
• Multi functional - also acts as a radon and damp proof membrane
• Dual jointing methods - lap joints can be taped or heat welded

Usage

• Visqueen Gas Barrier is suitable for use in all types of buildings to prevent the ingress of harmful levels of ground gases e.g. methane, carbon dioxide and radon.
• The barrier can be positioned above or below reinforced cast in situ concrete foor slabs or above precast suspended segmental subfoors, e.g. beam and block foor.
• The barrier can also be used as a high performance radon membrane and/or damp proof membrane.
• Radon, carbon dioxide, and methane protection - NHBC NF94 guidance: Visqueen Gas Barrier when installed with either taped or welded joints complies with NHBC Foundation’s NF94 publication, Hazardous ground gas - an essential guide for housebuilders, in Type A membrane locations in precast suspended segmental subfoors and reinforced cast in situ concrete foor slabs (ground bearing, suspended or raft). For site or zone characteristic gas situations of CS4 and above, contact Visqueen Technical Services.
• The product is not intended for use where there is a risk of hydrostatic pressure.