At present, there are many irregularities in the management of the building materials market. There are a lot of good and bad products on the market. When buying, brands should be chosen relative to higher-profile brands. The real waterproof and environmental protection materials shall have inspection report, product test report and product certification issued by the inspection center approved by the state. In addition, the purchase of waterproof materials should pay attention to the manufacturer's service measures. General regular manufacturers will have relatively standardized pre-sales, sales and after-sales services in the sales of products, some well-known brands will also promise free maintenance and long waterproof warranty period. Waterproof materials are divided into rigid and flexible according to their characteristics.
Rigid waterproof material generally refers to cement mortar. After it forms water, it has high compressive and impermeability. However, it has no extensibility, and its ability to resist structural tensile change is not high. If earthquakes and crustal movement cause wall fracture Or gaps, the opportunity loses its waterproof function. The flexible material has good elasticity, plasticity and extensibility, and can adapt to partial deformation of the structure. Therefore, for home decoration, flexible waterproof material should be used as construction materials.