1. Use light steel keels as much as possible when wood keels can be used or light steel keels can be used. This is because the wood shrinks and contracts, which is likely to cause structural deformation.
2. Pay attention to the expansion joints during design and construction. Each joint should have a expansion joint and be inverted at a 45-degree angle to avoid stress accumulation.
3, light steel keel or wood keel installed flat, spacing specifications.
4, self-tapping screws should be evenly distributed to ensure that each self-tapping nail is close to the force, otherwise it is easy to form a side-locking reaction to make the structure lose stability and produce deformation cracks.
Improper environment is another cause of cracking and cracking of the ceiling. Humidity is the most important environmental factor affecting the cracking deformation of gypsum board and plywood. During the construction process, there is moisture from all aspects, so that the sheet absorbs the surrounding moisture, and gradually shrinks and shrinks during long-term use, thereby causing cracks in the joint. Therefore, the air humidity should be reduced as much as possible during construction, and good ventilation should be maintained. Try to wait until the concrete moisture content reaches the standard before construction. Minimize wet work. When surface treatment, appropriate sealing measures can be taken on the surface of the board, such as rolling off the varnish to reduce the moisture absorption of the board.
Ceiling cracking is the most common quality problem in the home improvement process. With so much, it is still impossible to completely avoid the problem of ceiling cracking. If there is cracking in your home decoration ceiling, please don't panic, notify the decoration company to carry out the warranty. Generally, after a four-year reincarnation test, the structure will stabilize and there will be no more cracking of the ceiling.
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