There are many reasons for wall cracks that cause wall cracks, but they can be divided into two categories.
One type is caused by the structural problems of the building itself.
Wall cracks caused by this reason are generally straight and deep. Usually, construction workers will deal with cracks in the building wall, but it will not ensure that there will be no cracks in the wall in the future.
The other type is caused by the use of inferior materials or by non-standard construction processes.
The cracks in the wall caused by this situation are generally cracked, and the depth is slightly shallower than the former. In the construction process, the strict control of the quality of building materials and the strict control of the construction process can be used to minimize the occurrence of such wall cracks and kill them in the “cradleâ€.
How to avoid cracks
1. Use high quality materials
Experts suggest that when selecting materials, they must purchase through regular sales channels, select quality qualified building materials, and strictly follow the product instructions.
2. Reasonably handle the original wall surface
At present, the general practice of decoration companies on the market is: for the renovation of old houses, the decoration company will advise the owners to completely remove the wall before the subsequent construction; for the renovation of the new house, considering that the developer has done the basic treatment of the wall, If the owner does not have special requirements, the decoration company generally adopts a partial treatment method, that is, repairing only in the place where the existing base layer has cracks. Some insiders pointed out that in order to prevent the wall from cracking in the future, it is best to completely remove the original wall regardless of the new house or the old house. Because, if the quality of the building materials used in the original building of the new house is not good or the fake product is inferior, the subsequent application and the base layer will not be firmly bonded, resulting in cracks in the wall surface.
However, the construction of the wall is completely eradicated and the charges are high. Many owners of new houses are generally reluctant to choose this type of construction in order to reduce the renovation expenses, thus increasing the possibility of cracks in the renovation of new houses.
3. Pay attention to the details
The joints of different base layers are prone to cracks, so special treatment is required during the construction process. For example, the seam between the wooden frame and the wall of the wall cabinet, if not treated, is easily cracked after four seasons. During the construction process, a method of inlaid wood veneer is generally adopted to cover the cracks that may be generated.
Improper repair after wall grooving can also cause cracks in the wall. In theory, the cement mortar used for repairing the groove should be the same as the cement of the building wall, which is difficult to achieve in actual operation. Therefore, the 1:3 ratio of cement mortar is generally used for backfilling and slotting during construction. Place a patch or kraft paper to avoid cracks in the wall caused by shrinkage of the cement.
4. Strictly control the blank wall of the construction process
The standard steps of brushing the wall are: brushing the interface agent → wall crack treatment → plaster leveling → patching → scraping 2-3 times putty → grinding → brushing primer → finding and grinding → brushing twice the topcoat. The interface agent is an adhesive that acts as a cure and bond. When applying, a small amount of water can be added according to the instructions of the manufacturer. However, if excessive water is added, cracks will occur on the wall in the future, and the wall will peel or even fall off. In the process of leveling, it is not possible to level one time, but it should be done several times. Where the error is large, it is generally first leveled with plaster, and then putty with 2-3 times. The screed is not firm or unevenly applied, which can easily cause cracks in the wall in the future. For non-bearing walls, it is necessary to apply the whole wall. Try to choose good quality wall coverings and white latex, so the anti-cracking effect will be better.
Experts said: If every worker is strictly in accordance with the standard process, it will be able to avoid the cracks in the wall.
Matters needing attention after construction sudden temperature and humidity changes will become the cause of wall cracking. Therefore, experts recommend that the room should be properly ventilated after the renovation. If the living room is always in a closed state, the moisture in the decoration material cannot be volatilized, resulting in a high ambient temperature and a high humidity in the living room. After the stay, the air is suddenly ventilated, and the moisture in the living room is rapidly reduced, which easily causes the wall to dry. Of course, ventilation should not be excessive.
Xiaobian Tip: Our daily continuous maintenance is the way to maintain, especially to maintain the normal temperature and humidity in the room, plus high-quality decoration materials and standard construction techniques, it will avoid cracks to the greatest extent possible. Have netizens learned a little bit of knowledge, these should be very helpful!
CHANGZHOU CLD AUTO ELECTRICAL CO.,LTD , https://www.cld-leds.com