Steel roof leakage below for several reasons: 1, after two years, why are we still waterproof coating repair leaking? Waterproof coating can cause uneven flow coating thickness of the construction, there is a gap can not easily be found on the roof plus low elongation fibrillation, paint cracks. Waterproof coating to cut corners during construction, coating thickness is too thin, quickly aging cracking. Effect 2, wind, rain and other external forces, resulting in prolonged quiver color steel tile roof, making nail holes and worn metal seams Director at the time, encountered rain on rust. Then again wear again rust, more to the more serious. 3. Color tile roof deformation of the main reasons: First: roof span, resulting in the middle of the water a long time, the central gravity increased, the more the number of deformed more serious rain, and even the collapse of the top two: with mineral wool The roof, mineral wool absorbent effect has encountered rainy days, the roof leaks rain all gathered in mineral wool, the weight increase. Third: the summer when the roof temperature, dump heavy rain, causing the temperature plunged steel tile, steel tile rapidly shrink, causing deformation of color plates, nails loose. 4. Why is the rain will be back? Pour water phenomenon is a phenomenon unique color steel tile roof, a necessary condition for its formation are: pour water in the Foreign Office ventilation. First: the rain has indoor and outdoor air pressure difference, low pressure inside the rain sucked. Second: The winds have already ventilated place outside to form a duct, rain and strong winds blowing into it forcibly. 5, the production and transportation process, the construction process of deformation caused by careless steel tile. Poor quality steel tile, steel tile Master roof deformation caused by construction. 6, the level of cross-roof flush foundation seepage parts: the use of cement plaster character angle, sealant or waterproof coating waterproof protection. Cement and metal does not bind cracks. Paint or sealant elongation of small split 7 will appear larger, self-tapping screws with rubber mats why would seepage? First: the construction of self-tapping screws overexert have put rubber mats destruction. Second: rubber aging fast, and soon lost the waterproof effect. 8, with the weather sealant why would seepage? Weather sealant must be shrinkage during solidification, contraction may cause separation between the plastic and the frame, if the frame there is dust, this situation will get worse. Color temperature accelerated weathering roofing glue long aging, repeated expansion and contraction of the metal material, weathering plastic quickly lose effectiveness. Shenzhen fruit Seoul good waterproofing company specializes in various parts of the waterproofing, waterproof wall, color plates, roof leaks, pool, roof cracks, old and new roof, basement, kitchen, bathroom, expansion joints, cracks, and other interior and exterior and a large area of ??water moisture and heat insulation, insulation works. Longgang District, Shenzhen, Guangdong Province, Road No. 1066 Seoul good fruit Building Telephone:: Shenzhen fruit Seoul good waterproofing address 18,033,060,607 Alibaba store: http: //www.golkia.com/