How to deal with cracks on the top of the wall

Many old houses will crack on the walls after a long time, especially on the top. If there is a problem of cracking, it should be handled in time, because it is easy to fall off in the later stage. If someone passes by, it is likely to hurt people and be very dangerous. So what should be done about the cracks at the top of the wall? Friends who want to know may wish to see Bian Xiao's introduction.

First, the causes of wall cracking

First of all, we need to know what causes the cracks on the top of the wall, because different reasons will lead to different treatment methods.

1. One is the wall cracking caused by temperature. Some old houses are brick-concrete structures. After a long time, coupled with the influence of outdoor temperature, cracks will appear, which will not only affect the appearance, but also spread and extend in the later stage.

2. There is also a kind of wall cracking, which is a problem with the paint surface, but it is not particularly serious.

3, structural cracks, if the internal structure of the wall top is unstable, it is easy to crack, which will be reflected on the wall. It is possible to form cracks on the paint surface and then spread slowly, leading to serious problems.

4, if there is a mud layer crack, mainly because of uneven mixing of cement, which will lead to cracking.

5. If the house sinks, it will also lead to the cracking of the wall in the later period, which will generally appear at the junction of the floor.

6. Cracks in the putty layer and whether there are cracks in the putty layer are also common problems.

Second, how to solve it

For different reasons, we can prescribe the right medicine and solve them one by one.

1. If the cracking is caused by temperature, it is also very effective to spread a layer of non-woven fabric or grid cloth at the cracking place and finally spray paint on the surface.

2. If the crack is caused by paint, polish the place where the crack occurs, then clean the crack and repaint it.

3. If there is a crack in the structure, it needs to be inspected by professional construction personnel and treated according to the situation, and mortar may need to be poured into the structural crack.

4. If cracks appear in the mud layer, it is because the cement mortar is not properly matched. The original putty layer should be completely removed, and then crack prevention treatment should be carried out. Finally, wipe the mortar again, and the proportion must be correct.

5. If it is a sinking crack of the house, you can spread a layer of grid cloth on the crack of the wall, and then apply latex paint.

6. If cracks appear in the putty layer, all the original putty layer should be scraped off, and then the fiber mesh can effectively prevent the cracks from appearing again.

The above points are about the causes of wall cracking and how to deal with it.