DUODRAIN

Class [19]
Non-Metallic Building Material Products

Drainage installations; drainage courses; drainage systems; drainage systems for the purpose of relieving external water pressure upon buried structures, road edge drainage, landfill cap drainage, ground water drainage, leachate collection and drainage, green roof drainage and roof garden drainage; gas venting systems and gas dispersal systems comprising a geotextile bonded to cuspated plastic sheet material; gas venting systems and gas dispersal systems comprising cuspated plastic sheet material fully enclosed in geotextile; gas venting systems comprising of a void-former sandwiched between layers of geotextile or impermeable membrane for the prevention of gas seepage into buildings (or other structures) from adjacent soil at ground level.