Product Standard: GB / T 19250-2013 "polyurethane waterproof coating" JC1066-2008 "building waterproof coatings harmful substances" design and construction specifications: GB50345-2012 "roof engineering and technical specifications" GB50207-2012 "Roof Engineering Quality Acceptance "GB50300-2001" Construction Quality Acceptance unified standard "GB50108-2008" underground waterproof engineering technical specifications "GB50208-2002" underground waterproof engineering Quality Acceptance "newly revised" roof engineering and technical specifications "expanded the kinds of waterproof material The choice of color range of polyurethane waterproof coating, and to create the conditions for the application of polyurethane waterproof coating new waterproof materials, ease of design staff in formulating waterproof design considering a combination of technical and economic use of polyurethane waterproof coating, waterproof layer that meet the requirements of durable life Lunjia should grasp the principle of competitive prices according to quality relationship with waterproof material selection. Use waterproof material should be considered to ensure the durability of more than 10 years. According to the stiffness of the situation and the extent of exposure to the roof structure of the roofing materials should be selected UV-resistant, heat-aging resistance and good retention rotten performance, and the ability to withstand stress grassroots level, temperature deformation without cracks and fracture membrane. Use polyurethane waterproof coating waterproof material _ _ long source Jilin polyurethane waterproof coating provides long-source by Weifang waterproof material Limited. Weifang City for the source of waterproof material Ltd. (www.jiuyuanfangshui.com) Shandong Weifang, waterproof, moisture-proof materials, leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In the long leading source of waterproof material with the staff warmly welcome all inquiries negotiations to create long waterproof material source a better future.