Ground Work   Terrethene™ developed for sub-surface Terrestrial applications, is a multi-layered membrane made from polyethylene, aluminium foil and high tensile woven substrates that is marketed specifically by Apollo to block the migration of vapour, moisture, water and various environmentally harmful gases.   Terrethene™ is a tough 460+ micron five layer process membranes designed for use as a: 100% water-proof barrier under buildings. Radon gas barrier under buildings. Liner for commercial fish farm ponds. Gas barrier for landfill sites to prevent the migration of methane and carbon dioxide gases. Liner for SUDS (Sustainable Urban Drainage System) trenches. Water trap layer under golf greens and sports pitches to control water seepage into the sub-soil. Water-proof stratum for roof gardens. Liner for reed beds. Meets BS Standards for DPC. NHBC approved.     Please click below to download product data sheets   Terrethene™