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Construction and main points of engineering color steel plate(1)

Update:17 Feb 2020
Summary:

First, there are two fixing methods for color steel pla […]

First, there are two fixing methods for color steel plate installation: penetrating and concealed concealing. Penetrating fixing is the most common method for installing colored steel plates on roofs and walls. That is, color plates are fixed to supports (such as purlins) with self-tapping screws or rivets. Penetrating fixing is divided into wave fixing, wave fixing, or their fixing. The combination. Concealed buckle concealed fixing is to fix the special concealed buckle matching with the concealed color plate on the support (such as purlin). The fixing method of the female rib of the color plate and the central rib of the concealed plate is generally used for housing. Panel installation.
Second, the side and end of the color plate overlap. When installing each steel plate, its edges should be accurately placed on the previous steel plate and clamped with the previous steel plate until both ends of the steel plate are fixed. A simple and effective method is to clamp the overlapped steel plates with a pair of jaws. When the steel plate is positioned in the longitudinal direction, its ends, especially the upper end, need to be clamped by the pliers. This can ensure that one end of the steel plate is in place, and the overlap of one end is also in the correct position, thereby fixing the steel plate. During fixing, the clamp should always clamp the steel plate in the longitudinal direction. Each steel plate must be completely fixed before the next steel plate is installed. The fixing must start at the center of the steel plate, then extend to both sides, and finally fix the overlapping edges of the steel plate. For the end overlap, since the roof and wall profile boards are made by continuous processing, steel plates can be supplied according to the length restricted by the transportation conditions. Usually, no overlap is required, and the length of the steel plate is sufficient to meet the needs of roofing. .
For the consideration of on-site processing and transportation, if necessary, two shorter steel plates can be used to cover the entire length by end overlapping. The overlapping order of each column of steel plates is from bottom to top in order, and then placed in the next column. For the roof and wall steel plate overlaps that use the penetrating fixing method, they need to be positioned on the support. For roofs with a slope between 1/12 (50) and 1/4 (150), the overlap length of the steel plate ends is at least 200mm; when the slope exceeds 1/4 (150), the overlap length is at least 150mm, and the steel plate The midpoint of the end overlap should be in the center of the support. The minimum overlap length of the wall panel is 100mm.