Geomembranes are used for the purposes of waterproofing and insulation in the foundations of buildings and underground structures. The use of geomembranes helps drainage and prevents damage from environmental factors. Geomembranes are commonly used to insulate pools, water and chemical storage tanks, and tunnels. PVC geomembrane is an excellent choice for waterproofing building foundations and can be found throughout Iran. Arta Engineering Group of Arin Tos is the best manufacturer and installer of all types of geosynthetics, including geomembranes.