Method of wall treatment for interior and exterior wall renovation of old houses (second-hand houses)

Update time:2022-07-23

Internal and external wall renovation wall base treatment
The walls of ordinary old houses generally need to remove the original paint surface. The method is to spray the surface with water, and then use a trowel or electric planer to remove the surface paint; (2) For old walls that have been in disrepair for a long time , the surface has serious paint peeling off, and the ironing layer is sandy, the paint layer and the entire ironing layer need to be removed until the cement ironing or brick layer is seen; (3) Then mix with Shuangfei powder and cooked rubber powder The primer is leveled, and then the latex paint is applied. The surface layer needs to be painted 2 to 3 times, and the interval between each coat is preferably 24 hours.

Latex paint for interior and exterior wall renovation
This is the simplest and most common way to decorate walls. Usually second-hand houses carry out surface treatment on the wall, level it with putty, polish it smooth, and then paint it with latex paint. Latex paint is the mainstream of wall surface treatment at present. The joint between the upper part and the top surface is made of gypsum line as the inner corner, and the joint between the lower part and the ground is closed with skirting line. This kind of treatment is simple and bright, and the room looks spacious and bright, but it lacks change. It can be embellished by hanging picture frames, photos, tapestries, etc., and lighting with spotlights. It must be reminded that many industrial coatings are more or less toxic, and ventilation should be paid attention to during construction. After construction, it must be at least a week after volatilization before moving in, so as to avoid harm to the health of family members.

Renovation of interior and exterior walls with wallpaper
After the wall surface is leveled, the wallpaper is laid. There are many kinds of wallpapers, there are hundreds or even thousands of kinds, and the colors and patterns are very rich. The wallpaper is dirty, and it is easy to clean. The new wallpaper can be wiped directly with a damp cloth. The wallpaper is worn out, you can peel off the surface layer, no need to deal with it, just paste new wallpaper directly, it is very convenient.

For the construction of wallpaper, the most important key technology is to prevent mildew and deal with the problem of flexibility:
Anti-mildew treatment. Before the wallpaper is pasted, the base surface needs to be treated well, which can be ironed and leveled by adding Shuangfei powder and cooked rubber powder. After it dries out, apply another coat or two of varnish before posting.
Scalability processing. The scalability of wallpaper is a long-standing problem, and the solution is to start with prevention. On the one hand, an overlapping layer of 0.5mm must be reserved. Some people cancel this overlapping in pursuit of aesthetics, which is inappropriate. In addition, try to buy some wallpapers with better scalability.

Renovation and tiling of interior and exterior walls:
Ceramic tiles are a big item in decoration at present. Ceramic tiles are mostly used on the walls of kitchens, toilets, balconies and other places. The biggest advantage of tile decoration may be dirt resistance.
One of the main problems in ceramic tile decoration is the treatment of the waterproof layer. Because most of the places in the kitchen and toilet have water problems. So more attention should be paid to the waterproofing of the wall. New houses that have not been waterproofed or old houses that need to be replaced with tiles need to be waterproofed again.

The main methods for the renovation of the waterproof layer of the interior and exterior walls:

Professional waterproofing agent, such as No. 911 waterproofing agent, should be used for the height of 1 meter on the ground and wall. And the position where the wall is higher than 1 meter can use cheaper asphalt oil for waterproofing. If the economy does not allow, you can also directly use asphalt or resin for ground waterproofing. The ground and the 20 centimeters of the ground must be thicker. After the decoration is completed, try to avoid drilling holes at a height of less than 1 meter.