Housing Bureau: Renamed to Housing and Urban Renewal Bureau! China Enters the Era of Large-Scale Urban Renewal

住建局：更名为住更局！中国从大建设时代进入大维修时代

Currently, many regions across the country are experiencing abnormal high temperatures, significantly affecting waterproofing sub-projects. After installing non-exposed waterproof layers, timely protective measures or construction protection layers must be applied. High temperatures cause excessive thermal expansion in the base layer, leading to trapped air and vapor pressure beneath the tightly sealed waterproof membrane. This may result in blistering, delamination at joints or edges, and even surface peeling. Under intense sunlight and heat, non-exposed waterproof membranes are prone to shrinkage and cracking—especially self-adhesive membranes, which are more severely affected. To prevent these issues, the following guidelines are provided: