We offer a range of membranes which will provide an effective barrier to Radon, Carbon Dioxide, Methane, Hydrocarbons and damp during the life of the building. Gas membranes and coatings may be used for gas protection, above and below ground level and as an effective damp proof system. Generally, the loose laid systems are sealed with a range of double sided tapes or seam welded, complying with the latest codes of practice as published by BS 8485: 2015, CIRIA & BRE.
All our gas proofing products have 3rd party independent testing, copies of which are available upon request.
Liquid GMLiquid GM is a single component water based compound, formulated on styrene-butadiene co-polymer.
Sheetseal GRSheetseal GR is a cold applied, high density polyethylene film, bonded to aluminium foil and coated with a bitumen/rubber self-adhesive layer with a removable reinforced silicone release paper.
Gas Seal BlackGas Seal Black is four-layer loose laid, low-density polyethylene gas barrier containing an integral aluminium foil. This gas barrier protects the structure against hydrocarbon vapours, methane, carbon dioxide, radon and moisture from the ground.
Gas Seal HCGas Seal HC is a loose laid, robust, flexible 1mm thick linear low-density polyethylene (LLDPE) barrier to Hydrocarbons. Generally Gas Seal HC is seam welded to form a monolithic membrane, but the laps can also be sealed with a range of Gas Seal Ancillary tapes.