?1. After all the
high quality Galvalumed steel sheet are placed on the roof or several independent units are hoisted, the seams are adjusted. The seams are adjusted to be smooth and straight, and the width of the joints is as uniform as possible. Generally, the width is 20-30mm.
2. Welding: After the board joint adjustment is completed, the board and structure are welded. Each plate is welded at least 3 points, the welding length is 6cm, the thickness is 4mm, and the welding slag is removed after welding. If it is not guaranteed to weld more than three points, the plates are connected by steel bars.
3. Caulking: After welding, a polystyrene rod (polyethylene foam rod) with a diameter of 1.5 times is used to seal the bottom of the gap from top to bottom.
4. Caulking: Use 1:6 cement perlite mortar to fill the gap and compact it. The core material is dry and thick. It is better to use steel bars or trowels when filling the joints.
5. When the core material has a certain strength, brush a layer of polymer mortar in the gap, and the thickness is 1mm.
The above is the whole process of installation and construction.
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