What should I do if the exterior wall is damaged by the decoration?

Decoration damaged the external wall. First of all, you should see if this outer wall is a load-bearing wall.

1. If it is not a load-bearing wall,

It should be rectified immediately and the cracks should be filled with concrete. It must be filled several times in small quantities to achieve a firm degree. After filling, waterproof treatment should be carried out. After waterproof treatment, the wall should be painted with the same color as the original wall.

2. If it is a load-bearing wall,

Repair the damaged load-bearing wall immediately and let the house identify it, otherwise it may be illegal to impose a fine. Because according to the housing safety regulations, if a commercial house wants to knock on the wall for decoration, it must apply to the housing appraisal and pay the survey fee. After investigation by professionals, a change notice can be issued before the wall can be demolished.