Cracks on the wall often happen in family life, which not only seriously affects the appearance of the house, but also causes some safety problems. Therefore, once the wall is cracked, it needs to be repaired immediately. The following editor will teach you how to repair the wall crack !
How to repair a cracked wall
1. Cracking of structural layer
The cracking of the wall structure layer is mainly due to the cracks in the wall itself, followed by the subsidence of the foundation in the later period. If the cracked wall of the structural layer cannot be repaired by itself, professional construction personnel are generally required to complete the operation.
2. Cracking at the wall joint
This situation is because the joint is affected by external forces, which causes wall changes in the gypsum board and prefabricated board, which eventually leads to cracking of the wall surface. If this is the case, it is best to negotiate with the property and wait for the cracks on other floors to be repaired.
3. Cracking of the putty layer
Cracking of the putty layer is also very common, usually caused by the quality problem of the putty powder or the construction process is not in place. When repairing, first expand the cracks, fill in caulking plaster, polish and level, and then paste the grid cloth before construction.
4. Cracking of the plaster layer
Cracking of the plastering layer is generally caused by shortening of the cement mortar, so first determine the hollowing rate when repairing. If the hollowing area is large, you need to knock off the original plastering layer, re-plastering and then repairing; if it is a small area Crack, just repair directly.
5. Cracking of wall paint
The cracking of the wall paint and the cracking of the putty layer are the same, mainly related to the material and construction process. To solve the problem of wall paint cracking, just use fine sandpaper to grind the cracks, and then use the same color wall paint to repaint.
How is the wall cracking caused
1. Cracks caused by temperature changes
We all know that the brick body will expand and contract due to temperature. When the temperature rises, the brick body will expand with the temperature, which will eventually cause the wall to crack.
2. Cracks caused by materials
Secondly, the material will also affect the cracking of the wall. Now many unqualified products have been eliminated. For example, solid clay bricks and hollow clay bricks have been banned and restricted. The wet expansion and shrinkage of the block are particularly obvious in the outer wall. When the dry shrinkage rate of the block is large, the wall is prone to cracks.
3. Cracks caused by construction
Finally, the lack of construction quality is also an important factor leading to cracking of the wall, for example; low technical level of masonry workers or contractors cutting corners may cause cracks in the wall.
Editor's quote: The above is all about how to repair the wall cracks and how the wall cracks are caused. I believe everyone understands it! How to repair the wall crack? First of all, everyone must figure out what caused it, and finally take appropriate measures to solve it.
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How to repair a cracked wall
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