The thickness, width and span of the roof slab shall be determined by calculation;
Ensure that each roof panel and edge-receiving panel are stretchable;
The fixing point of the roof slab needs to be calculated, and the method of determining the fixing point according to the calculated data: hit 1 or 2 rivets, or hit 1 bolt, and use several self-tapping screws to directly fix the structure on the structure;
A galvanized steel plate with a thickness of not less than 1.5 mm must be installed under the roof edge welding place;
The lap length of the roof edge panel is usually 200 mm.
