A. Energy saving and environmental protection. The thermal resistance of yijia wall system is 5K ·m2/w, the insulation volume is above 65dB, the inner wall is above 45dB, and the thermal resistance of the roof system is 6K ·m2/ W. Dry operation, no pollution, no noise. Light steel structure system can be recycled, low grinding, recycling.
B. High degree of prefabrication, like building a car to build a house. All the building materials in the whole cold-formed thin-wall steel house can be prefabricated in the factory, and even preassembled in the factory. On-site installation is also a simple assembly process. All dry operation, high degree of mechanization, real residential industrialization.
C. Light weight, save material. Light roof and wall structure, its bearing structure material strength is high, thin thickness, with steel province (general low-rise housing with steel in 30kg/m2, multi-storey building with steel in 40kg/m2), light weight. The light weight of the structure reduces the transportation and lifting costs, and the foundation load is also reduced, reducing the foundation cost. The overall weight of the house is only about 1/4 of that of the traditional brick and concrete structure. They are built with minimal damage to the land.
D. Safe and durable. Wall and roof structure and internal and external wall panels form a strong "plate rib structure", the ability to resist horizontal load and vertical load is greatly improved, so the earthquake resistance, wind resistance is good. Through the test proved, can resist intensity up to 9 degrees rare encounter earthquake, and can resist more than 12 hurricane. All the structural components are made of hot-dip plated (aluminum) zinc steel plate, self-tapping screws are used when assembling, without welding, so its corrosion resistance is excellent, plus all the structural components are closed in the waterproof composite wall inside, will not be corroded, will not be mildew, not afraid of moth eating, the service life of the building in more than 90 years.
E. Comfortable living. Due to the use of excellent insulation and sound insulation energy-saving structure and materials, the indoor living comfort greatly improved. The built-in piping and thinning of the walls effectively increased the floor area of the house by about 10%. Coupled with the strong plasticity of steel structure, the housing can be complex, diverse and beautiful.
F. The nodes are mature and complete. The introduction of advanced technology and years of practice, yijia has a perfect and mature technical system, and formed a stable and comprehensive supply chain of supporting materials.
