Loose laid gas membrane.
Loose laid sheet membrane system designed to protect buildings against the ingress of methane, radon, carbon dioxide, hydrocarbon vapours and water vapour. The multi-layered laminate structure gives good strength, flexibility and installation properties. The upper surface of the membrane is coloured green.
J40/140 Loose laid plastics or rubber sheet gas retardant damp proofing
J40/145 Loose laid weldable polyethylene gas retardant damp proofing
GGM 400 Gas Membrane
Standard product features
Moisture vapour transmission: