The waterproof materials selected for steel structure roof engineering should meet the following requirements. The drawings should indicate the type, model, and specifications of waterproof materials. The main physical properties shall comply with the provisions of this specification regarding material quality indicators;
When selecting roof waterproofing membranes, coatings, and joint sealing materials, consider the operability of construction environmental conditions and processes. The materials used should be compatible under the following conditions: waterproof materials (rolls, coatings, the same below) and base treatment agents, waterproof materials and adhesives, waterproof materials and sealing materials, waterproof materials and protective layer coatings. The two types of waterproof materials should be used in combination with base treatment agents and sealing materials.
The manufacturer of the grid structure reminds you that waterproof materials should be selected based on the nature of the steel structure building and the function of the roof. In addition to regulatory requirements, the following requirements should also be met: no exposed roof should be used, strong adhesion with the base layer, UV resistance, and aging resistance. A well proportioned waterproof material that is resistant to acid rain and puncture. The roof of the upper body should be made of waterproof materials with good puncture resistance, mold resistance, and high tensile strength. Waterproof materials with excellent corrosion resistance, mold resistance, and puncture resistance should be used for water storage roofs and planting roofs. The roofs of large-span buildings, such as thin shells, prefabricated structures, steel structures, etc., should be made of lightweight, heat-resistant, and deformation resistant waterproof materials.
Inverted steel roofs should use waterproof materials that are resistant to deformation and have a high guarantee of joint sealing. For sloping roofs, waterproof materials with strong adhesion to the foundation layer and temperature sensitivity should be used. Sealing and waterproofing of roof joints. Choose from substrates with strong adhesion, low temperature resistance, and good sealing performance. Attention should also be paid to the processing and production of steel box girders, as well as the use of coal storage sheds.