The most painful thing in the world is because the steps to decorate the house are wrong, the most important face in the family ... broken!
Yes, the wall is cracked ...
Every day I receive a lot of private letters of help for the wall crack:
"Help! Only half a year after the decoration of my home, the wall actually cracked !!!"
"The wall of my house is not cracked, but the wall of my house has a blistering old wall ..."
"I just took a closer look at the wall of my house and found that my house also has a slight wall crack! I don't know if it is due to the surface layer ..."
"The wall is cracked, then you can only shovel the wall, shovel the cracked position ..."
........
Why did the wall crack?
If you want to dig into the root cause, then start with the structure of the wall:
The wall mainly has five-layer structure: topcoat layer, putty layer, cement mortar plastering layer, joint layer, structural layer (base layer wall).
Annoyingly, every layer of problems will crack, which can be described as capricious and unruly .......
However, deciding whether there will be problems on each floor and the frequency of problems depends largely on whether the wall decoration steps are correct in the process of decorating the house.
Don't miss anything before wall decoration!
Inspection and treatment of the current status of the wall
Cement walls, white walls, or walls that have been renovated, that is, second-hand houses, there are places to pay attention to in these cases. Come, divided into three, draw the key!
The first case: cement wall
New houses or rough houses should always be checked when handing over to see if the concrete walls are flat and solid. If the wall is not strong enough or there are large cracks and holes, you can complain to the developer or the property and ask them to redo or repair.
The second situation: white wall
Some houses have been painted with white walls when they hand over their houses. Do n’t be fooled by the clean large white walls. It may seem that the cleanliness may actually cause greater risks. In addition to checking the solidity of the wall, the existing white material is also water-resistant.
If it is not water-resistant or water-resistant, from the perspective of long-term use, it should be shoveled out and redone. For short-term use, it can also be retained, but it is best to do it again and then perform other steps. It should also be checked as a whole to see if there are empty drums on the wall. If there are empty drums, they must be shoveled. Other inspection items are the same as in the first case.
It ’s not as direct as the concrete wall, ha ha ha ha
The third case: the wall has been decorated
It is mainly the decoration of second-hand houses. The wall surface has been decorated with wallpaper or latex paint. Generally speaking, the original surface decoration should be cleaned up before this second decoration. If it is a wallpaper, the wallpaper should be removed first. If it is a latex paint, the latex paint should be polished first. After the surface decoration is removed, you can refer to the second case to decide whether to shovel the wall.
In addition, Amway has a method to check whether the wall is strong:
1. Visually check for peeling, cracking, and drumming, if not, it is not strong;
2. Find a blunt instrument (such as a small hammer) and knock on the wall to check whether there is an empty drum, if not, it is not strong;
3. After the latex paint is polished off, splash some water and shovel it with a spatula to see if it is easy to shovel. If it can be easily shoveled, it is not strong.
Don't take it lightly with every step of the wall decoration!
For rough houses, the sequence of wall decoration is generally:
Rough wall-scrape putty 2-3 times-polish-primer-leveling-topcoat-curing
Three major steps in wall construction: leveling the base, finely leveling the wall, and scraping putty
The first step: leveling the base surface
The adobe wall must be treated with the base surface of the wall. Generally, thick leveling materials with strong adhesion, water resistance and crack resistance are used. After the material is processed, there must also be a good detection method. It is recommended that the leveling range be within 2cm, and then use a steel ruler to measure against the wall. If there is a gap, you need to use thick leveling material again.
The second step: base leveling leveling treatment
In fact, the more common name for fine leveling is "putty". After the thick wall is leveled, you can scrape water-resistant putty or other putty for fine leveling. Generally, it can be scraped 2-3 times in batches, but pay attention to it during construction Stir evenly and the thickness of batch scraping to prevent human error.
Step 3: Polishing putty and painting
Polishing putty must wait for the wall to dry before doing this treatment, but do not take too long, otherwise the wall will become very solid, and it is more difficult to polish. Generally, the putty can be polished after 1 or 2 days in dry weather. You can observe the smoothness of the polishing through the light bulb during the polishing process. There are several small points here.
· Polish
Polish 1-2 days after putty. Polishing can be selected at night, use a bulb above 200 watts to close to the wall lighting, and check the degree of smoothness while polishing.
· Scrape putty
Generally, putty put on the wall twice. If the flatness is poor, it is necessary to scrape a few times locally. If it is more serious, it can be leveled with gypsum first. Each putty batch scraping should be more than 2 hours apart.
· Primer
Before brushing the primer, clean up the floating dust after polishing. The primer can be applied by brushing once, and it must be even. Wait for it to dry out (2-4 hours) and proceed to the next step.
· Brush finish
The top coat is usually applied twice, and after the first pass, leave it to dry for more than 2-4 hours. After the second brushing, it takes 1-2 days to dry completely. Before drying, pay attention to waterproof, drought-proof and sun protection.
Renovating the wall according to the steps of house decoration can greatly reduce the cracking of the wall afterwards. Only when the foundation is completed, the external is not easy to make mistakes.
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