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Color Steel Sheet Installation Precautions
1. The lighting board and the high quality color corrugated steel sheet are connected to the node. In the design, the thickness and stiffness of the lighting board should be selected to coordinate with the thickness and stiffness of the color plate, so that the waveforms of the two plates are consistent, pay attention to the overlapping length of the two plates and the sealing of the joint.
Under the condition of meeting the lighting requirements, the thickness of the lighting plate should be reduced as much as possible to avoid an excessive gap of the interface caused by the multi-layer overlapping of the lighting plate. The lighting board and the color corrugated steel sheet are not less than 250mm. The longitudinal direction of the lighting belt and the color steel plate is set, the aluminum alloy bead is set, and the butyl sealant is filled. The steel plates with lateral overlap need to be strictly matched with the roof panel, and waterproof glue is built in.
2. Details of the gutter falling into the water. Different from the five-year and ten-year precipitation that is considered when designing the drainage system in China, this is generally ensured by a series of measures such as increasing the gutter section, increasing the downpipe and adding a gutter overflow device.
The drainage of industrial buildings in China is usually divided into external gutter drainage and inner gutter drainage. For the long slope of the single slope of the roof, the intensity of the instantaneous heavy rain in the area where the project is located is often the case that the outer edge of the outer gutter is slightly lower than the inner side of the cornice, and the vase-type water bucket with overflow capacity is also used. In doing so, it is ensured that the gutter rain overflows when the instantaneous storm exceeds the design value.