Steel Structure Workshop considerations
Anti-seepage: Prevents rainwater from seeping into the metal roof panel from the outside. Rainwater enters the metal roof mainly by splicing gaps or joints. In order to achieve the anti-seepage function, it is necessary to use a concealed fixing after the sealing gasket is used at the screw mouth, and sealant or welding treatment at the overlapping portion of the plate, preferably using a long-length plate to eliminate the overlap, at various nodes. The bloating is strictly waterproof.
Fire protection: Metal roofing materials will not burn in the event of a fire, and the fire will not penetrate the metal roof panels.
Sound insulation: Prevent sound from passing from the outside to the inside or from the inside to the outside. The metal roofing layer is filled with soundproofing material (usually made of insulating cotton), and the sound insulation effect is represented by the sound intensity difference between the two sides of the metal roofing layer. The sound insulation effect is related to the density and thickness of the sound insulation material. It should be noted that the soundproofing material has different blocking effects on sounds of different frequencies.
Ventilation: air exchange indoors and outdoors. Vents are provided on the metal roof.
Moisture-proof: Prevents condensation of water vapor in the metal roof and metal roofing, and removes moisture from the metal roofing. The solution is to fill the metal roofing layer with insulation wool, a waterproof roofing membrane on the metal roofing floor, and a ventilated node on the metal roofing panel.
Bearing capacity: withstand construction load, rain, dust, snow pressure, maintenance load. The load-bearing performance of the metal roof panel is related to the section characteristics of the plate type, the strength and thickness of the material, the force transmission mode, and the spacing of the stringers (sub-strips).
Control thermal expansion and contraction: control the shrinkage displacement and direction of the metal roof panel. Ensure that the metal roof panels are not damaged by the stress caused by thermal expansion and contraction in areas with large temperature differences.
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