BBA CERT POLYTHENE RADON BARRIER 4m x 20m x 400mu Radon gas barrier sheeting for use in solid concrete ground floors Protects buildings against dangerous gas and water from the ground by providing an effective barrier against Radon, CO2, Low level methane and moisture, for the lifetime of the concrete slab in which they are installed BBA & NHBC approved Conforms to ISO 9001 and have been independent tested to K124/02/95 Colour may vary Made from 100% recycled materials
