Laiwu of Shandong geotextile material Ltd. introduced unqualified harm waterproofing membrane waterproofing membrane performance: low temperature flexibility, reach -25 ℃ not crack, high heat resistance 100 ℃ not flowing. Good elongation performance, long life, simple construction, pollution and so on. Products applicable to I, II stage construction of water projects, especially for low-temperature cold regions and structural deformation frequent construction waterproofing. Waterproofing membrane is an important building material. The use of inferior building construction waterproofing membrane causing leaks, it is in addition to substandard structures outside the influence of the quality of construction of a second major problem for waterproofing mass, causing great harm. 1, low temperature flexibility defective waterproofing membrane, at low temperatures, changes in product flexibility, stiff brittle, easily broken or cracked, thus losing the waterproof function; 2, heat-resistant waterproof membrane unqualified words, if roof surface temperature, bitumen membrane surface mix will slowly flow from the top down and tread base, resulting in an effective waterproof layer thinning, have serious leakage problems, so that the loss of waterproofing membrane. It is understood that the building leaks caused by poor-quality waterproof material, called "Building cancer", is an important cause of building leakage rate has been high. Waterproof material with fake made out of construction, poor quality, easy to leak, seriously affecting the life and safety of the building. Laiwu geotextile material Ltd. Jinda remind you, in the purchase of waterproofing membrane, be sure to choose the regular manufacturers, factory production license to view, ask for a certificate of products to the manufacturers. Once problems are detected, immediately stop the construction.