Laiwu Jinda waterproof board manufacturers tell you the quality of water used in construction materials which conditions must be met? Waterproof buildings and structures is to rely on material with waterproof properties to achieve, waterproof material quality directly related to the durable life of the waterproof layer. Quality waterproofing works depends largely on the performance and quality of waterproof material, the material is the basis for water projects. When we conduct waterproof construction, waterproof material used must comply with the material quality standards of the country or industry, and should meet the design requirements. But the difference waterproof practice, the material should also be different waterproof functional requirements. Waterproof Building Materials common requirements are as follows: having good weather resistance, light, heat, ozone, etc. should have a certain tolerance; the second has a resistance to water penetration and acid properties; three on the outside temperature and force a certain adaptation sex, namely higher tensile strength, elongation at break larger, able to withstand temperature change and a variety of external forces and grass roots stretching, deformation caused by cracks; fourth overall good, both to maintain its cohesiveness, and firm bond with the grass roots, while the external force, there is a high peel strength to form a stable watertight whole. For the different parts of the waterproof project, waterproof materials are also required to have their focus, specific requirements are as follows: a waterproof roofing projects adopted its weather resistance, temperature resistance force performance is particularly important. Because roofing layer, especially no exposed insulation layer waterproof layer is subjected to a long-term wind, rain, sun, snow, cold and other harsh natural environment deformation invasion and grassroots structures; two underground waterproofing used waterproof material must have excellent impermeability and elongation, with good overall impermeability. These requirements are for the steady erosion of groundwater, and the greater pressure, and deformation of underground structures and other conditions that may arise for it; among the three indoor toilet and bath waterproofing waterproofing materials should be chosen to fit the shape of the grass-roots change and help laying pipeline equipment to impermeability excellent seamless whole film is ideal. This is for a small area, multi-wall tube hole, Yang angle and more, bring more health facilities and other factors with the ground, floor, wall connecting structure is more complex and so it is offered; four of the building's exterior slab waterproofing waterproof material chosen should have good weather resistance, high elongation and adhesion resistance, sag resistance and other performance-based materials, usually selected sealing material supplemented liner insulation material supporting the treatment is appropriate. Which is given to the wall have to bear a special form insulation, insulation, waterproof construction needs and gaps integrated functions connected proposed; five special structures waterproofing waterproofing material of choice should be based on the features and functions of the different projects use different requirements, selected by the design as appropriate.