Cetco Voltex GB-500 Membrane - 1.66m x 10m Roll

Key Features & Benefits

• Composite membrane with 7-layer EVOH/PE geomembrane and bentonite geotextile
• Provides dual protection: waterproofing + ground gas resistance
• Resists radon, methane, and carbon dioxide gas ingress
• Engineered for both non-hydrostatic and hydrostatic conditions
• Complies with BS 8485:2015+A1:2019 and BS 8102:2009
• Approved for NHBC AMBER 1 & AMBER 2 site conditions
• Roll edges designed for quick, secure welding/taping overlaps
• Compatible with GEOVENT ventilation systems for enhanced gas control

Applications

• Below-ground structural waterproofing with integrated gas resistance
• Protection of buildings against radon, methane, and CO₂ ingress from landfill or natural sources
• Sites requiring passive or active ventilation systems in combination with gas protection membranes
• Basements, tunnels, substructures, and foundations in contaminated or high-risk soil conditions
• Projects requiring compliance with NHBC and BS gas protection standards