Our below-grade waterproofing solutions protect commercial buildings and infrastructure projects in the world's harshest climates. Leading the way since 1990 are the highly reliable PREPRUFE waterproofing products. PREPRUFE waterproofing membranes create seals that prevent water migration between the membrane and the structure in every direction.
DryJoist is a structural deck drainage system that provides the structure of the deck, a waterproof solution and a finished ceiling with a traditional bead board appearance, all in one step DryJoist is easy to handle and cut and can be installed in any weather conditions, wet or dry.
Shanghai Seven Trust Industry Co., Ltd, founded in the year 2008, is a hi-tech enterprise which specializes in the R&D, sales, and service of WPC materials, Provide excellent products, professional technology and sincere service.