Use galvanized steel for color coated steel substrate, in addition to zinc protection, organic zinc coating layer played a role in covering isolation to prevent rusting steel, galvanized steel for longer life than, it was introduced coating life than steel galvanized steel 50% longer. However, in different regions and different use of the site, using the same amount of galvanized, color coated plate the same kind of paint, the same thickness of the coating, its life will be very different. For example, in industrial areas or coastal areas, due to the effects of sulfur dioxide gas in the air or salt of color coated paper quotes, corrosion speed, life is affected. In parts of the rainy season, Shandong color coated paper, soaked by rain coat long, or too easy condensation temperature difference between day and night Boxing color coated paper, will quickly corrode, life will be reduced. Installation 1. color-coated roof roofing projects should not overlap, when the volume must overlap painted shall downslope direction lap, lap points should fall on purlins or other support, lap length should less than 250mm; 2. Cross slope direction two roof seams should be on the surface of the adjacent two plates each greater than or equal upward flange 25mm, on which undercut groove connection fittings, sealants, caulk; 3. All ride Exposed seams and nail heads must be closed with sealant or waterproof material; 4. pipeline crossing the roof, he shall be treated well water technology. Crimson color coated paper, Jinhong Run steel (certified), Shiyan color coated paper provided by the Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry. Boxing Xingfu Town 金宏润 Steel Industry and Trade Ministry (www.bxjhr.com) (www.bxjhr.com) is a leader in Binzhou, board (with) wood, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Jinhong Run Steel leadership with the staff warmly welcome all inquiries negotiations to create a better future for the steel Jinhong Run.