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Cracking and peeling of the topcoat: If the quality of the latex paint you buy is very poor, the gum content in the paint is more, and the texture is very brittle after drying, it is easy to crack. Therefore, when buying, we should look at the products of qualified quality of big brandsThe temperature at the time of painting is also a very critical factor

The ambient temperature should be better than 5° and lower than 35°, so that the formation of a film is better and not easy to crack.

Since most of the ordinary paints nowadays are water-based,Therefore, when proportioning, it is necessary to pay attention to the addition of too much waterOtherwise, it will reduce the adhesion of the paint and it will easily peel off in the future。However, if the base layer is not treated properly, or if the primer is not completely dry, the topcoat will also be affected.

Cracking and peeling of the topcoat: If the quality of the latex paint you buy is very poor, the gum content in the paint is more, and the texture is very brittle after drying, it is easy to crack. The temperature at the time of painting is also a very critical factorThe ambient temperature should be better than 5° and lower than 35°, so that the formation of a film is better and not easy to crack.

Since most of the current ordinary paints are water-based, it is necessary to pay attention to the addition of too much water when proportioning. Otherwise, it will reduce the adhesion of the paint and it will easily peel off in the future

In addition to the quality of the materials, the construction sequence is also due to the fact that if the construction is carried out in a hurry, the second pass of work is done on the premise that the previous pass is not thoroughly dried, resulting in cracking in the future. Normally, putty should be scraped three times, and the thickness of each layer is also required. Too thin and too thick will affect the flattening of the wallEspecially if you scrape too thickly, it is easy to crack under the action of gravity.

The first is the quality of the materials for wall decoration, which is easy to cause problems, and the decoration workers' methods of deploying materials are easy to cause wall problems.

Generally, the flatness of the wall is not treated well, and most of them will crack.

The most important thing is the quality of the cement, if the quality is not good, it is easy to crack.

It must be that there is a problem with the wall, so it will crack as soon as it is installed.

If the waterproofing is not done properly, the wall surface is prone to cracking.

Is it still necessary to live in such a house? I think it's upsetting enough.

If you don't pay attention to the decoration materials in the bathroom, it is easy to have cracks and the like.

If so, it's really too disturbing, and the mood to live in it won't be too good.

In the cold weather construction, to paint over and over again, and wait for the previous one to dry thoroughly and then paint the next time, if continuous brushing, resulting in the latex paint is too thick, uneven drying and cracking. It is recommended to find a professional decoration company, and it is very common to strictly control the subtle cracks in the construction standard, so don't worry, the best way is to wait for a few months, and then check the wall after the main body of the house is stable. If no new cracks are added, it means that it has been stabilized, and then use putty powder to repair and paint the wall.

If there is a crack in the ash layer, you knock it down with a hammer and drop the whole piece of dust, which is a problem with the quality"Hollow drums"。If the dirt is not dropped in its entirety, it is not a quality problem. is the reason for the base layer of the wall.

The wall cement stucco base has a hollow drum or putty base treatment, and the base treatment is not done. It is best to test and repair the whole house before the decoration begins, if there is a problem in the later stage, you need to be normal to the hollow drum part, because there are decorations and shopping upstairs, gravity pressure makes the wall cracks, and the cracks in the large flat layer are very few, if you don't want to wall cracks or reduce cracks, the whole house sticks to the net before brushing the paint.

Although there seems to be no problem on the surface, it will begin to crack in two or three months after the construction is completed, so that fine cracks appear in different positions of the wall. The reason is the cracking of the wall caused by tension. The tension of the wall is generally caused by the uneven settlement of our entire building.

Because after uneven settlement, it will cause our walls to be subjected to a tensile force, which will cause cracks to appear in the middle of the wall.

The cracks on the wall of the insulation board are cut with a putty knife and filled with gypsum, and attention must be filled and evenly filled. Then use a bandage, bean wrap cloth or white good cloth to paste the cracked place, dry it and then scrape putty or do other processes.

Different remedies should be made for different wall cracks, and if the wall is only cracked because it is too dry, the cracks can be repaired with putty powder.

It should be dealt with on a case-by-case basis.

1.There are cracks in the wall, and the plastering mortar at the cracks is hollow. In this case, first of all, it is necessary to find the scope of the hollow drum, carry out mechanical cutting along the perimeter of the hollow drum (appropriately expand the cutting range), so that the cutting part forms a neat and regular plane, and the cutting edge is cut into an oblique mouth of about 45 degrees outward, and then manually chisel the hollow drum mortar to the wall brick surface or the bottom mortar surface that is not hollow, brush off the loose part with a wire brush, and flush the floating ash.

Brush 1 surface agent, and it is best to use mixed mortar (mixed with thickening powder) when wiping the surface. When the thickness of the plaster exceeds 10mm, it is painted in 2 times. Curing for about 7 days, scrape the putty twice after drying, and brush the paint with sandpaper.

2.The plastering mortar is not hollow, and there is a large-area dense crack phenomenon. In this case, the original wall putty should be removed, the putty should be scraped again after cleaning, and the sandpaper should be brushed with paint; You can also batch 2 times of flexible putty on it.

3.The plastering mortar is not hollow, the surface layer is not peeling and falling off, and there are a few sparse cracks. In this case, the principle of "seeing the seam and mending the joint" is adopted, and the wall putty is shoveled about 2 3cm wide along the crack, and the depth is to the mortar surface, and after cleaning, the gap is flattened with flexible putty, and the sandpaper is brushed with paint.

If you are not sure about the cracking problem, you can ask the authority to conduct testing.

First of all, the putty layer must be removed, and then when you see the cracks in the cement stucco layer, you can directly use the carbon fiber anti-crack cloth to paste it. If you find that the paint film on the surface is cracked, this problem is relatively easy to deal with, then you can use fine sandpaper to sand the crack off, and then repaint it with latex paint. Latex paint wallpaper is also a good way to cover the wall directly with wallpaper.

The wall painting process and the steps of sticking wallpaper can be understood, and you can use it directly in the future.

The remedy is to fill it with some cement, then paint the outside and then put wallpaper on it, so that it is not visible.

Cracking is a common quality problem in decoration, and its causes and classifications are as follows:

1. The original building structure concrete wall and the secondary lightweight block wall connection cracking, the main reason is that the wall foundation is not hung with barbed wire to prevent cracking or the barbed wire does not cross the joints too much, it does not work, the phenomenon is that the cracks are relatively deep, and the local will be close to 20mm with a paper clip. If this is the case, it is more troublesome to deal with, and it is necessary to start with the plastering layer, because there may be serious quality problems of wall hollowing in the future.

2. The original structure wall and the light steel keel wall are cracked at the joint, the reason is that the deformation of different materials is inconsistent, and the cracks are cut, cracked, putty, pasted, putty, and painted, which can no longer crack in a short time, but cracks will still appear after a freeze and warm cycle, and the solution should be to use the lightweight base plate to seal the original structure wall at the base level, otherwise it can not be used in the surface stage.

3. Cracking between the light steel keel wall or between the light steel keel wall and the ceiling, which is caused by the deformation of stress release, after cracking, after a period of time, a one-time cut, cracking, scraping putty, patching, scraping putty, painting and other treatments will basically not crack again. Some cracks in the corners of the cloth or kraft paper that are not attached to the construction can also be treated in this way.

Personal experience, critical references.

First of all, it is necessary to see what causes the cracks, and there are many reasons for cracks, such as: building defects, including insufficient mortar mix ratio when mortar leveling, or cement mortar is not dry enough to batch ash, which will cause the cement mortar to crack after drying. It will cause latex paint cracks after the decoration is completed, and the other is that the decoration workers in the construction in order to shorten the construction time, the bottom is not completely dry when the bottom layer is polished, which will also cause this phenomenon.

If it is an irregular crack on the wall as a whole, it is the overall removal, and then re-construction, if the wall appears in a vertical line or a horizontal line into a straight line of cracks, it may be the wall insulation layer joint of the house or the wall expansion coefficient caused by the construction hole reserved during the civil construction of the building is not the same, the crack left, if so, only need to follow the direction of the crack, evenly remove the wall, and use elastic putty to lay the base, Paste the seam tape with glue, and then level it as a whole, and make primer and topcoat in turn.

Everyone knows that the renovation of a house is a great project, and there will be several questions before and after the renovation. For example, why does this happen if the wall cracks after renovation? I'm going to talk about thatThe wall cracked just after the renovationreasons andThe wall cracked just after the renovationof the treatment.

1. Cracking of the paint layer.

If the paint layer on the wall is broken, cracks will appear on the surface of the wall, the main reason may be that the wall paint is not of good quality or the operation is not standardized during the construction process. The paint cracked.

Solution: If only the film on the wall has cracks, simply sand the cracks with fine sandpaper and apply the same color wall paint.

2. Cracking of the putty layer.

When scraping putty, care must be taken to avoid cracks. If the structure produces cracks not only but also in the surface layer, this will cause the walls to crack.

Solution:The wall cracked just after the renovationhas penetrated into the putty layer. First, you can use a sharp tool to widen the crack, then use caulking and plaster to sand the level, and finally follow the normal process.

3. Cracks in the plastering layer.

There are two types of cracks in the plastering layer of the wall. One is normal cracking, which is mainly caused by the shrinkage of cement mortar. The second type of repetition is abnormal cracking caused by the use of materials or improper handling. The first scenario is difficult to avoid, but the second can be avoided.

Solution: If the crack area in the plaster layer is too large, you need to remove the original plaster layer and reapply the plaster layer.

4. Cracking at the seams.

The wall cracked just after the renovationThis is mainly due to shrinkage or change in position of drywall, prefabricated partitions and prefabricated floor slabs. These phenomena mainly occur in reinforced concrete cut walls or joints such as ceramsite bricks.

Solution: If this happens, you can wait until the entire building is deformed and then repair it. If it is fixed in a short time, it will be easy to repeat.

You can get it for free

Wall cracking can be a big or small problem. It is said that it is big because: if the cracking of the wall is caused by the partial cracking of the load-bearing structure, this reason is very serious, because it affects the safety of the structure; It's small because:

If the cracking of the wall is caused by the cracking of the stucco layer of the wall, it is not serious, just redo the stucco layer. How to distinguish: you chisel the cracked place of the house to see, whether the wall is cracked, if the wall is cracked, then the quality of the house can find a developer, if it is only the cracking of the stucco layer, you can redo the stucco layer, maybe the quality of the original stucco layer is not qualified, you can also find a developer or decoration construction team.

Hope you're happy with this answer! Thank you!

How to crack? Where exactly? Be specific.