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In waterproof material variety, is currently building waterproof materials can be divided into five categories: namely bitumen membrane, waterproof polymer sheet, building waterproof coatings, building sealants and seepage, such as special-purpose waterproof material. Each material has its own characteristics, so the project must be based on site conditions, the environment, architectural level, functional needs, the choice of appropriate materials, play to the characteristics of various types of materials, and thus obtain the best waterproof effect. Depending on the project site to the selection, the choice of flag is also inconsistent. (1) Roof. Roofing due to prolonged exposure to the sun, snow and rain erosion directly, winter heat temperature changes, retractable roof will occur between day and night, so you should choose a good anti-aging properties, and there is some elongation, heat and high material . Such as polyester fetal modified bitumen membrane, EPDM sheet or asphalt felt like. (2) the ground. According to long-term underground project in a wet state and difficult to repair, but small changes in temperature and other characteristics, it requires the use of rigid-flexible multi-channel fortification, in addition to rigid waterproof filling additives, but also the choice of resistance to mildew, good corrosion resistance, life length of flexible material. When the cushion waterproof, puncture resistance should use good material, such as the thickness of 3mm or 4mm of tread fiberglass, polyester fetal modified bitumen membrane, glass cloth felt like; when using waterproof polymer substrate , you must use good water resistance adhesive thickness of the substrate should not be less than 1.5mm; use waterproof paint film fast when you need to use, and then emulsifying the material does not produce. Such as polyurethane, silicone rubber waterproof coating having a thickness of not less than 2.5mm. (3) toilet and bathroom. Toilet and bath are generally small in size, the yin and yang angle and more, and all kinds of wear too much floor pipes, coils, sheets of construction difficulty, use waterproof coating is appropriate, the coating can form a seamless whole film, from the base surface irregularities, such as the JS composite waterproof coating, asphalt catch small latex paint, polyurethane waterproof coatings. To wear a floor pipes, the choice of green or water-swellable rubber seal deals.

The operator of a waterproof material must be qualified construction workers; 2 non-wearing PVC membrane with spikes personnel to enter the construction site; 3 construction process should pay attention to site protection; 4 welding quality strict inspection, to see a seamless welding, stitch welding phenomenon; 5 construction site allowed to smoke; 6, such as the case of the use of special adhesive, Celsius below 5 ℃ or humidity greater than 80%, limiting the use of; 7 unnecessary human activities should be prohibited and a hard object damage (except regular roof maintenance); 8 Change any effect roofing effects, should promptly inform the waterproof construction team, to provide a corresponding change programs; 9 web event of damage, do not use other waterproof material to repair, should promptly inform professionals, by professionals for maintenance.

1. Waterproof material laying of PE film PE film is first cleaned before construction grass, remove surface sharp foreign matter, and clean, there are problems to find grassroots timely reporting, shall not be careless. PE film tile on the grass roots, using a professional butyl tape lap joint, lap width of 60mm; roofing membrane must follow the design surrounding PE sealed with butyl tape, ensure that the overall tightness of the vapor barrier. 2. Laying insulation board: Insulation board material quality should meet the requirements, should be laid flat, close to the grass roots, staggering lap. Use special insulation board fixed pads and screws to the plate supporting the grassroots level, insulation board size is 2400 * 1200 * 70mm, the number of fixed pieces of 6 units / blocks. The fixed pad flush with the surface of the insulation board, screw through the roof at least 25mm. 3. PVC sheet laying 3.1, the construction, the first pre-shop, according to the natural contours of the loose coil disposed on the base, flat straight, without distorting, and appropriate tailoring. 3.2, the construction of mechanical fastening method, sheet longitudinal lap width 120mm, 50mm for which mounts (metal gasket and screws) applications. After covering the short side butt homogeneous PVC membrane connected, covering the strip width 150mm