Visqueen Low Permeability Gas Membrane 4 x 12.5m - Yellow Roll

Product Overview:

Visqueen Low Permeability Gas Membrane is a flexible 0.5mm thick thermoplastic membrane. The product is yellow in colour and supplied 4m x 12.5m in a centre folded roll. The membrane is manufactured from virgin polymer.

Visqueen High Performance Damp Proof Membrane RS058893 is a robust co-polymer thermoplastic 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 Foundation’s NF94 guidance for radon protection in Type A and Type B membrane locations
• Complies with NHBC Amber 1 - suitable for low gas risk NHBC housing sites
• Supplied centre folded - reduces the risk of cracks in screed and limits creases
• Also provides radon and damp proof membrane protection
• Dual jointing methods - lap joints can be taped or heat welded

Usage

• Visqueen Low Permeability Gas Membrane can 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 slab.
•  
• Radon protection – NHBC NF94 guidance: Visqueen Low Permeability Gas Membrane 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. Visqueen Low Permeability Gas Membrane also complies with this guidance when installed with welded joints in Type B membrane locations. For further information, contact Visqueen Technical Office.
•  
• Carbon dioxide and methane protection – NHBC Traffic Light System: 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 subfloor, e.g. beam and block floor.
•  
• The product is not intended for use where there is a risk of hydrostatic pressure.