Light steel villa roofing system is composed by the roof trusses, structural OSB panel, waterproof layer and lightweight roof tile (metal or asphalt shingles). Light steel roof appearance has a variety of combinations and the materials are also available for many kinds. Under the premise of this technology to protect the waterproof, the appearance of steel villa has many options.
2. Light steel villa floor structure
Light steel villa floor is composed by the cold-formed steel frame or composite beam, floor OSB structural panels, support, connections, etc. The material used is oriented strand board, cement fiberboard, and plywood. These lightweight floor surfaces can withstand a load of 316 to 365 kilograms per square meter. The
floor structural system weighs only one-fourth to sixth of traditional concrete floor system, but floor structure height is 100 to 120 mm higher than the ordinary concrete slab.
3. Light steel villa wall structure
Light steel villa wall is composed by studs, the top of the wall beam, wall bottom beam, wall support, wall panels and connectors. The prefab villa usually uses the inner transverse wall as the load-bearing structure wall, the wall studs strut member is C-shaped, the wall thickness is according to the received load, which is usually 0.84 to 2 mm; wall studs spacing is generally 400 to 600 mm, the arrangement of the light steel villa wall structure can effectively withstand and reliably transfer vertical loads and convenient to layout.
4. Light steel villa building insulation energy-saving technology
In order to ensure that heat insulation, insulation materials used by light steel villa in the exterior walls and roof of the building can be used for a long and insulation. Light steel villa is generally filled with glass fibers in wall studs between the wall, and the layer of insulation material is pasted outside of the wall, effectively cut off the thermal bridge from the wall studs to the wall panels; joists between floor are filled with glass fiber, reducing the heat transfer through the floors; all the interior walls of the wall studs are filled with glass fibers, to reduce the heat transfer between the household wall.
5. Building fire protection technology
One of the most critical problems of light steel villa is the application of fire technology; fire resistance rating of the light steel villa is four. Light steel villa paste the fireproof gypsum board on both sides of the wall and floor, for the general firewalls and household wall is protected by 25.4 mm thick gypsum board, in order to achieve one hour's fire protection requirements. In addition, the glass fiber filled between wall studs and floor joists also play a positive role in the protection of fire and heat transfer
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