The waterproof materials selected for steel structure roof engineering should meet the following requirements. The drawings should indicate the type, model, and specification of waterproof materials. The main physical properties should comply with the provisions of this specification regarding material quality indicators;
When selecting roof waterproofing rolls, 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 basic 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 basic treatment agents and sealing materials.
The manufacturer of the grid 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 the regulatory requirements, the following requirements should also be met: exposed roofs should not be used, and the adhesion to the base layer should be strong, resistant to ultraviolet radiation and aging. A waterproof material with excellent ratio, resistant to acid rain and puncture. The roof of the upper body should be made of waterproof materials with good puncture resistance, good mold resistance, and high tensile strength. Water storage and planting roofs should use waterproof materials with excellent corrosion resistance, mold resistance, and puncture resistance. The roof of large-span buildings, such as thin shells, prefabricated structures, steel structures, etc., should be made of waterproof materials with light weight, high heat resistance, and good deformation adaptability.
The inverted steel structure roof should use waterproof materials that are resistant to deformation and have a high guarantee rate 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 beams and the use of coal storage sheds.