Gypsum board wall, ceiling how to set expansion joints?
Ceiling generally stuck 3mm, must be at the keel. Do not stretch the wall.
The first step: fixed side of the vertical keel, and in the vertical keel on the nail layer, two or three 12mm (or 15mm) of the paper gypsum board, and then 10mm away from the back to install the other side of the vertical keel;
The second step: along the control of the location of the joints, leaving a gap of 12.5mm installed on both sides of the wall gypsum board;
The third step: cut a control seam with the same length of the control joints, according to the different types of joints of the control joints were used quick-drying glue or tapping screws, the control joints fixed in the paper gypsum board control joints;
Step 4: Seepage treatment with caulkite;
Step 5: Pull out the rubber strip in the control seam fitting.
Wall width of more than 12m, the wall of the left and right and the top three sides, the ceiling of the southeast of the four sides, to stay in control joints, the joints need to use elastic sealant closed or installed decorative bar and other methods to deal with;
