1, Watertown brand waterproofing structure for the surface enhanced by the linear high-density polyethylene resin stabilizer added to help anti-aging agent and high-strength adhesive such as a new non-woven polypropylene filament, using hot-melt direct compression technology made new waterproof membrane with excellent water resistance, chemical resistance, weather resistance and mechanical strength. 2, polymer waterproofing membrane with a strong permeability, high tensile strength, good low temperature flexibility, thermal expansion coefficient is small, easy to bond, friction coefficient, good stability, non-toxic, deformation adaptable temperature range wide, long life, good performance of the integrated technology. 3 prominent feature of waterproofing uniform rough surface, easy to bond, with a variety of materials suitable for grass-roots