How to solve the common wall problems?

Almost every home that has been renovated will have unsatisfactory places. Therefore, how to “make up for the bad” and make up for the shortcomings is a concern for more people. The problems on the walls are more frequent, such as cracking and discoloration on the walls. Now let's see how professionals can answer the wall question.

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Prevent "cracking" according to the process, first fill and then paste kraft paper

Phenomenon: There are cracks and cracks on the wall.

Analysis: There are many causes of cracks in the general wall, which can be divided into four types: (1) The construction process is not closed. Such as: In the grooved wiring place, do not go in accordance with the formal process, perfunctory. (2) The ground subsidence and earthquake are encountered on the floor. After the 2008 earthquake, wall cracks appeared in some buildings. (3) Insulation walls of buildings are informally treated. Because the insulation wall is spliced ​​together, if there is no formal process, it will cause wall cracks. (4) There is a problem with the cement paint layer. Such as the proportion of cement and sand, moisture content is not in place and so on.

Solution: For wall cracks that occur due to slotting and foundation sinking, etc., be sure to follow the procedure strictly. First, grind the plaster and fill it in the grooved part or the cracked part, and then apply a bandage or cloth. Kraft paper, followed by other primary treatment. Non-standard processes do not use kraft paper at all, but directly brush over time. Inevitably, cracks are inevitable. In addition, stucco plaster must be used. Its paste strength and shrinkage force are much stronger than ordinary plaster. For the insulation wall, be sure to put a cloth on the wall, and then re-apply a layer of plasterboard, so that the insulation wall can ensure no problem.

Avoid “painting” the wall surface dry and paint it, then coat the sealer after two weeks

Phenomenon: After the residents stay for some time, white flocs and white crystals will protrude on the paint surface, which is very unsightly.

Analysis: According to Huai Yu, manager of Longfa Decoration Engineering Department, this is mainly due to the dampness of the walls.

There are generally two reasons for dampness: either the walls are damp when the decoration is in progress, or the tide is too high when the building is under construction. As a result, for a long time, the walls will reveal the alkali in the cement, showing the phenomenon of lumping and packing. “A wall of the owner’s home was baled up and inspected many times. The result was that there was a root pipe passing through the wall from the middle of the house. This pipe was connected to the toilet line and the pipe was inadvertently As a result, a large amount of water flowed out, resulting in damp walls. This also reminded consumers not to easily destroy the original pipeline."

Solution: Before painting, make sure the wall treatment is completely dry. After two weeks, the walls are thoroughly dried and a primer is applied to the walls. If the paint has been brushed and split, the paint shall be completely scraped off to ensure that the walls are dry and repainted.

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