If the ceiling gypsum board is cracked, it will not only affect the appearance, but also may fall, threatening the personal safety of the owner. In the complaints related to home decoration, cracking of partition walls and ceiling panels is a very prominent problem. Experts remind consumers that the installation of gypsum board is also very important. Never let the workers be careless in this link, so as to avoid unnecessary trouble.
Improper practice
1. When the ceiling elevation is the same as the beam bottom elevation, the gypsum board does not pass through the beam bottom, which will result in high maintenance rate and inconvenience. Because the ceiling elevation is the same as the height of the beam bottom, the gypsum board does not pass through the bottom of the beam, which will cause the two different materials of the gypsum board and the beam bottom to form an interface. This interface will be used due to the temperature difference and the expansion and contraction of different materials. The deformation produces cracks. If the post-processing is not proper, the crack will crack repeatedly, which brings a lot of inconvenience to the owner's life.
2. The gypsum board at the corner of the suspended gypsum board is not covered with L whole plate, and it is easy to shrink and produce cracks. When the wooden keel ceiling is used to seal the gypsum board at the corner, if the L whole board is not used for construction, the bottom gypsum board will have seams at the corners, which will cause cracks due to the interface of the base material and the easy shrinkage of the material.
Correct practice
1. When the ceiling elevation is the same as the beam bottom elevation, the gypsum board must pass through the beam bottom. The advantage of this is that there is no interface, which will effectively reduce the joint and prevent cracks. In addition, when the ceiling elevation and the beam parallel opening are treated, the gypsum board should pass through the lower part of the beam and the side of the beam. Leave the slats on the sides and prevent the seams from being present on the bottom plate, which will reduce cracks and maintenance.
2. The gypsum board is sealed with L-shaped at the corner of the ceiling of the wooden keel to prevent the formation of cracks. The wooden keel ceiling is constructed with L whole plate when sealing the gypsum board at the corner. The bottom gypsum board is a whole plate of shape L at the corner, leaving the seam on both sides of the ceiling and making the joint into a figure-eight shape, then Lafarge or gypsum powder is filled in the joint to effectively control the crack. According to Modern Express
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