Monarseal Self Adhesive Gas Membrane 300mm x 20m is a methane, carbon dioxide, radon resistant and waterproofing self adhesive membrane specifically designed for sealing loose-laid Monarflex DPM's to structural elements such as steel and concrete columns. It can also be used for sealing to existing buildings and for detailed sealing work at upstands and corners.
When correctly detailed and installed in a new building it will provide an effective barrier to the passage of all gases, air and moisture from the underlying soil.