1Guang'an color steel plateThe factory stated that when lifting profiled steel plates, wooden boards or soft objects should be placed between the steel plates and the steel cables to prevent scratches or deformation of the steel plates.

2、 Before installing the steel plate, it is necessary to check its appearance quality to ensure that the surface is free of defects such as oil stains, sediment, cracks, peeling, and scratches.

3、 The joint of the steel plate ribs laid should be opposite to the local perennial wind direction.

4、 The longitudinal overlap length of the lower steel plate is 80-100mm, and there is no need to apply sealant at the overlap. From below, the joint of the profiled steel plate should form a straight line and be parallel to the eaves, and the joint should be uniform and tight.

5、 The upper profiled steel plate should be bent upwards at an angle of 80 ° at one end of the ridge. The longitudinal overlap length of the upper profiled steel plate should be greater than 200mm, and sealant should be applied to the overlap. From above, the joint of the profiled steel plate should form a straight line and be parallel to the eaves, and the joint should be uniform and tight.

6、 The color steel factory pointed out that the overlapping length of the flashing plate and the corner plate should not be less than 100mm, and sealant should be applied to the overlapping area. Flashing plates, corner plates, and profiled steel plates should be connected with rivets. The spacing between longitudinal and transverse connections should not exceed 1250px, and the spacing should be uniform. The joints on both sides should be symmetrical, and the rivets should be sealed with sealant.

7、 At the junction of the sink, gable flashing board, and concrete or brick parapet wall, a cutting machine should be used to cut the parapet wall into gaps with a depth greater than 10mm, and then the folded edges of the flashing board should be inserted into the gaps and coated with sealant. Use cement nails to fix the flashing board to the daughter wall, and seal the cement nail head with sealant.

8、 Use a dedicated self tapping gun to drill self tapping nails. Each row of self tapping nails should be threaded to form a straight line and parallel to the ridge or eaves to prevent drilling holes. The self tapping nails should be perpendicular to the connection surface between the purlins and the roof panel.

9、 During the installation process, a fixed section inspection should be carried out to check the flatness and parallelism of both ends of the steel plate.