How to repair a broken wall?

1. When installing the air conditioner, the master punched through the wall of our house. What should I do?

This matter, how to say it!

Let's talk about air conditioning installation first. With your understanding, you can usually tell at a glance whether it is possible to break through a foreign plane. As long as there is a little possibility, I will discuss with you (not excluding some people and not playing cards according to the routine).

The single-layer brick wall is perforated, and the perforation rate is 50%. Especially those walls with poor quality. The permeability of double-layer brick wall is 5%. If you encounter a particularly bad wall, you can make a dog hole. Hollow bricks, in theory, are not allowed to be hung outside the machine, and the safety is too poor. You can look at your own wall. Theoretically, it is bad, and the foundation wall is too poor (it is not excluded that a brain-dead installer can hit 15 cm, but he must hit 24 cm).

From your point of view, the wall is broken. You have to help me repair it and compensate me for my loss.

In fact, the quality of the wall is so poor that no one can help, right?

Let's talk calmly. If the installer pays, you will admit it. Harmony prevails, doesn't it?

2. what should I do if I make a hole in the corner and cause cracking?

First of all, check whether these cracks are places that you have changed during the decoration process, such as the wall that was rebuilt after the original wall was demolished or the partition wall or ceiling made of gypsum board.

Secondly, see if there has been a similar situation between your neighbors and upstairs or downstairs. If this happens to neighbors, then this problem is very serious. It is estimated that the wall cracks caused by building subsidence are very dangerous. If none of the neighbors have this situation, then at least your home is safe.

Finally, let's see if it's weather or geography, because wall cracking is directly related to air humidity. It may also be that after the wall is built by civil engineering, it is not plastered three times according to the construction requirements, but plastered directly to separate the cement surface from the brick wall, commonly known as "clutch". If this happens, it is a construction quality problem, but it is not impossible to refuse, or it is more troublesome to knock with a small hammer first. Then you can level it with gypsum, and finally brush a little more expensive latex paint, such as Nippon Nine in One, mainly because it is too elastic. After brushing the wall, the elasticity of the wall finish can be increased, and small cracks will not crack the paint surface.