Visqueen Gas Barrier offers a safe solution for the protection of buildings against methane, radon and carbon dioxide, when installed in accordance with the relevant codes of practice.
Visqueen Gas Barrier
Visqueen Gas Barrier is a multi-layer reinforced polyethylene membrane with an integral aluminium foil. For ease of identification on site Visqueen Gas Barrier is coloured blue on one side and silver on the reverse. The barrier combines strength and performance with flexibility and easy installation.
- BBA Approved
- Low permeability to methane, radon and carbon dioxide.
- High quality multi-layer reinforced LDPE membranes with aluminium core with high levels of tear and impact resistance.
- High resistance to puncture.
- Complies with relevant codes of practice such as BRE and CIRIA.
Visqueen Gas Barrier and ancillary components must be installed in accordance with the recommendations of Building Research Establishment BRE 414 “Protective measures for housing on gas contaminated land” and CIRIA C665 “Assessing risks posed by hazardous ground gases to buildings”, NHB C guidelines, and the Chartered Institute of Environmental Health Ground Gas Handbook. The product is not intended for use where there is a risk of hydrostatic pressure.
Visqueen Gas Barrier should be overlapped by at least 150mm and bonded with Visqueen Double Sided Tape. The joint should be secured with Visqueen Foil Backed Girth Jointing Tape. Ensure that the membrane is clean and dry at the time of jointing airtight seals should be formed around all service entry points.
Visqueen Pre-formed Top Hat Units must be used for sealing service entry pipes. The base of the top hat should be sealed using Visqueen Double Sided Tape and Visqueen Foil Backed Girth Jointing Tape is used to secure the joint.
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The following items are available to view online or to download from www.visqueenbuilding.co.uk
- Technical Datasheets
- Typical installation
- CAD details
- Health and Safety data
Register online for access to NBS Clauses and for information about our CPD Seminars.
For advice on detailing or installation call Visqueen Building Products Technical Help Line 0845 302 4758.
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