1. Cracked paint
In some cases, it is more common that the paint layer is cracked, which is lighter and easier to repair. Cracks in the paint layer refer to cracks in the paint layer on the outer surface of the wall. This is mainly due to the inferior paint used in decoration or the incorrect structure of the painter. It is relatively easy to repair cracks in the paint layer. We just need to sand the wall with sandpaper and repaint it with the same color wall paint.
2, gap layer putty
The coating is the shallowest layer in this process, and the bottom layer is the putty layer. If there is a crack in the putty layer, then we need to repair it in time. Everyone knows that when decorating walls, we should first coat them with putty, so as to protect and decorate the walls. Putty can make the wall softer and more delicate, and it is also convenient for painting the back. Brush cracks in putty layer are mainly caused by putty being too thick or too thin. When repairing, we need to use a sharp tool to enlarge the crack, then immediately fill gypsum, then polish and level it, put a layer of kraft paper, and then level it with putty powder for painting.
3. Cracks in plastering layer
There are cracks in the wall at home. This is mainly due to the poor quality of the cement mortar used, and it will be more problematic to repair it. First, we must remove the surface of the empty wall, then make a new layer of gypsum, and then carry out normal treatment on the wall. Because of the complexity of the restoration work, we must check the wall before the decoration. Reasons for cracks in the wall at home
1. Temperature will lead to cracks
The reason for cracks in the wall at home is that if the temperature between the floor and the masonry is not harmonious, the masonry will produce temperature stress. Masonry itself has the function of tensile strength. If the temperature exceeds the tensile strength, the wall is prone to cracks.
2. Cracked latex paint
If the latex paint outside the wall has cracks, the repair is very simple. You can grind the cracks with sandpaper, and then brush them again with new latex paint.
3. Crack caulking layer
The reason why the putty layer cracks is that the putty brush is too small, and the cracks naturally occur after a long time.