All lap joints and seals are sealed with sealing strips and sealant without leakage.

Production and installation of roof panels, wall panels and profiled metal panels. According to the specific requirements of different positions on the drawings, the sandwich color plate shall be cut on site, especially the door and window opening shall be accurately placed. When cutting the roof panel, take care of the slope and the direction of the overlap. The installation of roof slabs and wall panels shall be carried out by hoisting machines. The installation process shall not cause scratches or damage to the finished boards. The adjacent boards shall be lapped in the direction of the local maximum frequency, and the upper and lower lap joints shall be first installed and then lowered. When the small board is installed, first measure the appropriate size, and cut it according to the actual cutting;

The installation of the pressed metal plate shall be smooth and smooth, and there shall be no construction residues and dirt on the surface of the plate. The lower end of the mouth and the wall shall be straight, and there shall be no untreated mis-drilled holes. The connection between the profiled metal plate and the support member (main structure or bracket) and the pressed metal plate are realized by different types of connecting members, and the reliability is fixed directly or directly with the number, spacing and connection quality of the connecting members. Relevant, it is necessary to set the waterproof sealing material to be laid well to ensure that there is no seepage or water leakage between the plates.

Self-tapping screws and rivets must be fastened at all joints, and must not be missed; all lap joints and seals are sealed with sealing strips and sealant, and there must be no water leakage. After the installation of the roof panels and wall panels, check and accept the design drawings and specifications. Material inspection According to the principle of quality management in the whole process of total quality management, the quality of steel structure installation engineering should be started from the quality of raw materials and the quality of components, not only to strictly control the quality of component production, but also to control the quality of component transportation, stacking and lifting, and take practical measures. Reliable measures to prevent deformation or stripping of the components during the above process. If the components are deformed or stripped, they should be corrected or repainted before installation.