Some friends said that the reason for cracking is likely to be paint quality. In fact, poor quality is just one of the reasons. There may be problems with the wall and the structure of the house. Construction is also a key issue. Next Xiaobian analyzes the causes of wall cracking for everyone.
First, the original wall surface problem
The quality of the original wall surface is a major cause of paint cracking after renovation. There are two common problems with the original wall: one is the cracks in the plastering layer and hollowing; the second is emptying of the putty layer. The cracks or hollowing of the plastering layer and the putty layer mostly originate from the developer's poor quality of raw materials, incorrect ratios, and careless construction of the construction materials. Therefore, consumers must carefully inspect the quality of the walls when collecting their houses. Once problems are found, they must be properly dealt with during the renovation.
Second, the housing structure,
Sometimes, there are no problems with the original walls of many houses, or they have been dealt with before painting. However, after the renovation, they will gradually crack over time. Why is this? In fact, the reason is almost inevitable housing settlement. There are two kinds of housing structure problems: one is the settlement of houses, and the other is the deformation and settlement of gypsum suspended ceilings.
(1) The settlement of houses caused by house settlement is mostly caused by the uneven settlement of foundations. It is most common in old-fashioned multi-storey apartment buildings. Specifically, the surface of the wall presents a 45° direction crack. The top surface is mostly through the east and the west. In addition, if the old apartment is a floor structure, cracks often occur in the junction between the two floors. Generally, cracking is different, and different measures need to be taken to repair cracks and prevent future wall paint from cracking.
(2) Deformation settlement of plaster ceiling
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Another common cause of wall cracking is the settlement of decorative elements such as ceilings. The most common of these is the gypsum board ceiling deformation settlement. Plasterboard ceilings are generally constructed using two processes. One is the use of wood keel, due to the lack of natural wood stability, generally poor handling or construction will not lead to thermal expansion and contraction caused by the surface deformation, the other is a light steel keel, and sometimes decoration companies in order to save material, intends to add Large keel spacing causes the gypsum board to settle in the future. In addition, some decoration companies have tried to replace the drywall nails used for the keels and gypsum boards into rows of nails. Over time, the plasterboard ceilings will also be cracked, and the drywall screws will be painted directly without embalming. Putty, then, because of rust on the surface of the ceiling will appear one by one protruding nail hole.
Third, the material construction is the focus <br> In addition to the wall of the house itself will lead to cracking the wall, materials and construction is also very critical, no matter in the material or construction, if there is a problem, the wall will crack, the following we Look at the causes of wall cracking in materials and construction.
(1) Improper selection of construction climate technology means that the rainy season or the cold weather are not good for wall paint. In the rainy season, the wall has a high moisture content, and the construction of putty and latex paint is poor. In cold weather, putty and latex paints are difficult to dry, and if there is a freezing phenomenon, if the construction is done again, the walls will most likely crack soon.
(2) Improper wall grooving and repairing Water and electricity transformation requires the laying of pipelines on the walls of the wall. Improper repair of walls after grooving can also cause cracks in the wall paint. The reason for improper repair may be that the ratio of cement mortar used for backfilling is incorrect, and it is also possible that the worker did not use anti-crack paint and no adhesive bandages for the sloppy treatment of the slot.
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Xiaobian conclusion: The above analysis of the reasons for the cracking of the wall , I hope to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
First, the original wall surface problem
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The quality of the original wall surface is a major cause of paint cracking after renovation. There are two common problems with the original wall: one is the cracks in the plastering layer and hollowing; the second is emptying of the putty layer. The cracks or hollowing of the plastering layer and the putty layer mostly originate from the developer's poor quality of raw materials, incorrect ratios, and careless construction of the construction materials. Therefore, consumers must carefully inspect the quality of the walls when collecting their houses. Once problems are found, they must be properly dealt with during the renovation.
Second, the housing structure,
Sometimes, there are no problems with the original walls of many houses, or they have been dealt with before painting. However, after the renovation, they will gradually crack over time. Why is this? In fact, the reason is almost inevitable housing settlement. There are two kinds of housing structure problems: one is the settlement of houses, and the other is the deformation and settlement of gypsum suspended ceilings.
(1) The settlement of houses caused by house settlement is mostly caused by the uneven settlement of foundations. It is most common in old-fashioned multi-storey apartment buildings. Specifically, the surface of the wall presents a 45° direction crack. The top surface is mostly through the east and the west. In addition, if the old apartment is a floor structure, cracks often occur in the junction between the two floors. Generally, cracking is different, and different measures need to be taken to repair cracks and prevent future wall paint from cracking.
(2) Deformation settlement of plaster ceiling
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Another common cause of wall cracking is the settlement of decorative elements such as ceilings. The most common of these is the gypsum board ceiling deformation settlement. Plasterboard ceilings are generally constructed using two processes. One is the use of wood keel, due to the lack of natural wood stability, generally poor handling or construction will not lead to thermal expansion and contraction caused by the surface deformation, the other is a light steel keel, and sometimes decoration companies in order to save material, intends to add Large keel spacing causes the gypsum board to settle in the future. In addition, some decoration companies have tried to replace the drywall nails used for the keels and gypsum boards into rows of nails. Over time, the plasterboard ceilings will also be cracked, and the drywall screws will be painted directly without embalming. Putty, then, because of rust on the surface of the ceiling will appear one by one protruding nail hole.
Third, the material construction is the focus <br> In addition to the wall of the house itself will lead to cracking the wall, materials and construction is also very critical, no matter in the material or construction, if there is a problem, the wall will crack, the following we Look at the causes of wall cracking in materials and construction.
(1) Improper selection of construction climate technology means that the rainy season or the cold weather are not good for wall paint. In the rainy season, the wall has a high moisture content, and the construction of putty and latex paint is poor. In cold weather, putty and latex paints are difficult to dry, and if there is a freezing phenomenon, if the construction is done again, the walls will most likely crack soon.
(2) Improper wall grooving and repairing Water and electricity transformation requires the laying of pipelines on the walls of the wall. Improper repair of walls after grooving can also cause cracks in the wall paint. The reason for improper repair may be that the ratio of cement mortar used for backfilling is incorrect, and it is also possible that the worker did not use anti-crack paint and no adhesive bandages for the sloppy treatment of the slot.

Xiaobian conclusion: The above analysis of the reasons for the cracking of the wall , I hope to help everyone. For more relevant knowledge, please continue to pay attention to this website information platform. Follow-up will present more exciting content for everyone.
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