Existence of water in engineering structures is one of the most important reasons of failure and destruction. When building materials are in the vicinity of water their strengthproperties will be reduced. So engineers have always been concerned about drainage and isolation of structures basements and foundations. If structures are not properly drained or isolated, structures will always be at risk. So drainage and isolation are important phases of every civil project. Geosynthetics and specially geomembrane have a special role in isolation of every civil projects. Ariankhak Iranian engineering group with more than 10 years experience in geosynthetic installation is ready to fulfill your drainage and isolation needs of any civil projects.