What is the cause of wall paint cracking? How to fix it?
1, structural layer cracks
The cracks in the wall structure are mainly caused by the cracks in the wall itself and the subsequent foundation subsidence. If cracks appear in the structural wall and cannot be repaired by itself, they must usually be completed by professional construction personnel.
What is the cause of wall paint cracking? How to fix it?
2. Cracks appear in the wall joints.
This is because the joint is subjected to external force, which will lead to the wall and precast slab on the gypsum board eventually breaking the wall. In this case, it is best to consult the property and repair the cracks on other floors.
What is the cause of wall paint cracking? How to fix it?
3, putty layer cracks
Cracking of putty layer is also very common, which is usually caused by quality problems of putty powder or inadequate construction technology. When repairing, first stretch the crack, continue polishing and leveling, and then fill the caulking gypsum with grid cloth to make it.
How to fix it?
4, gypsum layer cracks
Generally, cracks appear in the plastering layer of cement mortar. If a large area with cavitation needs to be plastered again, it is necessary to beat the original plastering layer after curing, and the speed is determined by the corrosion. In the case of a small area, cracks will be repaired.
How to fix it?
5. Cracked wall paint
In terms of materials and construction technology, the cracks and cracks in the wall paint of the putty layer are roughly the same. For the problem of cracks in wall paint, just use the same color wall paint and polish it with good sandpaper to redraw the cracks.
What is the cause of wall paint cracking? How did the wall crack happen?
1. Cracks caused by temperature change
We know that bricks will expand and contract due to temperature. With the increase of temperature, bricks will expand with the temperature and eventually destroy the wall.
2. Cracks caused by materials
Clay bricks and clay hollow bricks have been banned. Second, materials can affect the limitation of cracks in the wall, and now they are removed more than the quality of products. The expansion and contraction of the block are particularly obvious at the outer wall, and the wall is easy to break when the dry shrinkage of the block is large.
How did the wall crack happen?
3. Cracks caused by architectural reasons
Finally, the building quality is not important to the wall cracking. For example, the bricklayer's technical level may be low, or the contractor's part may damage the wall.