The problems that are easy to appear on the ceiling of plasterboard are mainly cracks and irregular arching, among which there are construction and materials, and there are seasonal reasons.
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There are two kinds of problems that are easy to appear on the gypsum plasterboard ceiling. One situation is that about half a year after the ceiling is completed, cracks begin to appear at the joints of the gypsum board. The solution is to make sure that the gypsum board is fixed in the unstressed state when the plasterboard ceiling is in place. The distance between the keel and the fastening screw must be strictly in accordance with the design requirements; care should be taken when the overall scraping putty is used, and the putty should not be too thick.
In the second case, irregular ceiling waves appear on the ceiling. The surrounding grille or square corners of the suspended ceiling, or the shrinkage caused by the large moisture content of the wood, can cause uneven crowning. In addition, the keel joint is uneven and has a hard bend. The distance between the hanger or the reinforcement tends to deform the spur keel, and it also causes the ceiling to be uneven. The top of the wooden boom is chapped and it is not tightened when the boom is made of steel, which can cause irregular wave deformation. The lighter steel keel is best used for ceiling projects with large area.
To prevent ceiling arching, suspended ceiling timber should be made of high-quality soft wood, its moisture content should be controlled within 12%, the keel should be straight, there can be no transverse penetration through the section of the frugal, ceiling construction should be leveling around the wall on the wall, installed The level of the arching height of the indirect horizontal line shall be 1/200 of the short span of the room, and the vertical crown should be evenly distributed.
Ceiling installation room
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