The water resistant membrane used in the coating is porous enough to allow moisture to escape, but not so porous that the wall is not exposed to stagnant water. Many types of waterproof membrane systems are available, including felt paper, polyurethane and other materials used to build the roof. The waterproofing is best used where the soil structure sits continuously or periodically above the groundwater level. This applies to buildings such as residential buildings, office buildings, schools, hospitals and other buildings. Some waterproofing methods that create a barrier between roof tiles and shingles include the use of roofing membranes and the installation of water-repellent tiles. Roofing membranes can be mounted on roof frames and serve as additional protection against moisture in the roof material. Tiles or shingles are the recommended options, but you can also use metal bedding that covers the joints and canopies of your roof to prevent water from seeping in. The system consists of a fabric reinforced with a thin layer of polyurethane, a high-performance, water-resistant material. The fabric is embedded in multiple layers of coating to create a seamless, reinforced, flexible membrane that lasts indefinitely with minimal maintenance. Waterproofing a green roof with a bituminous plastic membrane is relatively simple. The flashing light is simply painted on the spot and becomes an integral part of the membrane. The purpose of the waterproofing layer is to prevent the penetration of rain and irrigation water into the interior and to protect the load – to protect the supporting structure from decay. It can be used for everything from prefabricated reinforced concrete decks to the roof of a building. When choosing a reverse roof insulation, where the thermal insulation is placed over the thermal insulation by a waterproofing layer, it is extremely important to trap any residual moisture in and below the roof. In addition, the waterproofing material must have a high degree of resistance to moisture and moisture absorption, as well as the ability to capture water. Roof Life Chemical Company provides its all types of roof services in entire Pakistan that includes Karachi, Lahore, Peshawar, Sukkur, Hyderabad, Islamabad and Balochistan.