Wall decoration, whether it is wall paint, wall tiles or wallpaper, needs to reprocess the basic part of the wall in order to achieve better decoration effect. If you want to tear down some walls, pay attention to the treatment of load-bearing walls.
1, foundation treatment of old wall
The foundation treatment of the old wall mainly refers to the removal of the original decoration and decoration of the wall.
Generally, it includes the removal of the original latex paint and putty layer on the wall, wood decoration and other surface decoration (such as wallpaper). If you only decorate the wall for one or two years, you don't have to completely eradicate the water-resistant putty on the wall. You can repaint latex paint after polishing the wall with steel brush and sandpaper. If the decoration takes a long time, it is necessary to completely eradicate the putty layer and repaint the putty before other processes.
2, the basic steps of wall renovation
Step 1: Clean the wall.
Before the renovation, the old wall must be treated as the base of the wall. If the pulverization is serious, it should be thoroughly eradicated, and then a layer of white cement should be applied. The original wall is too smooth, so it needs to be polished to remove the weak skin after paint removal, so that the new paint can be bonded to the wall.
Step 2: Brush the primer.
The function of wall primer is to resist alkali and moisture, seal the substrate, protect the top coat and improve the texture and hiding power of the top coat. In the renovation of old houses, the walls must be primed. If you don't apply the primer and directly apply the topcoat, the wall will be prone to foaming and mildew after a long time, and it will also change color after being exposed to the sun for a long time.
Step 3: repair in a large area.
Repairing the wall with a good finish will be more troublesome, easy to produce color difference, different materials use time, difficult to guarantee the quality, and it is difficult to achieve the ideal effect.
Therefore, it is best to repair the wall as a whole, or try to choose a larger area for repair, so as to avoid color difference as much as possible and the quality will be better after repair.
Step 4: Color difference prevention.
When repairing the wall surface, color difference of the wall surface should be avoided. So pay attention to the proportion, paint according to the instructions of the paint bucket, and it is best to estimate the dosage. Prepare enough at one time, so as to ensure the consistency of the wall color, and also avoid the difference of the rearranged colors due to insufficient dosage.
3. Precautions for wall renovation
Water-resistant putty that has been used for more than five years must be removed to the bottom of the wall during the secondary decoration due to the aging of the material, otherwise it will affect the construction quality of wall latex paint and the long-term use effect after decoration.
The ventilation condition of the old house is poor, and the xylene component in the diluent will react chemically with the components in latex paint, resulting in yellowing of the wall. Therefore, it is necessary to strengthen ventilation, open more doors and windows, or put a few electric fans to enhance the ventilation effect.
In addition, while carrying out space transformation, we should understand the wall characteristics of the house. The load-bearing walls must not be destroyed in the decoration, and some non-load-bearing walls cannot be removed at will, otherwise it will have a serious impact on the safety of the house.
How to distinguish load-bearing walls? Generally, according to the annotation on the engineering drawing, the thick solid line in the construction drawing and the wall under the non-load-bearing beam in the ring beam structure are load-bearing walls, and the non-load-bearing walls are generally marked with thin solid lines or dotted lines on the drawings. In addition, it can also be distinguished according to the thickness of the wall. Generally, walls over 240MM are load-bearing walls.
Some walls can't tell the thickness, but they are also load-bearing walls, such as external walls and walls shared by neighbors, which are easy to distinguish.
Rabbit summary: these are all things that need attention in wall decoration? Bonnie, repeat. When preparing for decoration, students should first ensure that the basement is clean, so that many problems can be avoided when repainting. Also, we must understand the characteristics of the building wall, and never destroy the load-bearing wall, otherwise it may threaten the living safety.
For more experience and common sense about wall decoration, please pay more attention to Tuba Rabbit Decoration Channel. You can also subscribe to Tuba Rabbit's decoration information mailbox, select home improvement information once a week, and spend some time studying. I'm sure the decoration will be fine.
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