1. In the steel structure project, the waterproof material selected for the roof project should indicate the type, model and specification of the waterproof material in the drawing. The main physical properties should meet the requirements of material quality indicators in relevant specifications
2. Taking into account the construction environmental conditions and the operability of the process. The materials used should be compatible with the combination of waterproof materials and basic treatment agents, waterproof materials and glues, waterproof materials and sealing materials, waterproof materials and protective layer coatings, and basic treatment agents and sealing materials.
3. According to the nature of the building and the roof function, choose waterproof materials. Not only must meet the requirements of the specification, but also choose not to use the exposed roof, and the material with strong adhesion to the base, UV resistance and aging resistance. The waterproof material should also have acid rain resistance and puncture resistance. For roofs, waterproof materials with good puncture resistance, mildew resistance and high tensile strength should be used; for water storage roofs and planted roofs, waterproof materials with good corrosion resistance, mildew resistance and puncture resistance should be used; for large-span building roofs , Such as thin shells, prefabricated structures and steel structures, should be light in weight. A waterproof material with high heat resistance and good resistance to deformation. When the roof is inverted, waterproof materials with anti-deformation ability and high seam sealing guarantee rate should be used. For sloping roofs, waterproof materials that have strong adhesion to the base layer and are sensitive to temperature should be used. The roof seam is sealed and waterproof, and should be selected from the base layer with strong adhesion, low temperature resistance and strong sealing.
