With the passage of time, the ever-hot renovations have now become old homes. No matter how old or new they are, they cannot keep up with modern decoration styles and can no longer meet the needs of modern people. The second decoration is a major event that many owners need to face. When the second-hand house is renovated, it must be handled on the walls and grassroots of the old house.
There are many second-time homeowners who share some common annoyances, such as cracking walls. The situation is serious, and some large areas of wall cracking, shedding; the situation is minor, there will be long linear cracks on the wall; not only does not look good, but often people do nothing, this time to repair it only then It is a matter of remedy.
Causes of wall cracking
First, the basic processing:
In the long-term use of the old house, external shocks and vibrations may cause some wall bases to separate from the wall. If the old wall surface is not scraped off during the second renovation of the wall, there will be hidden dangers. Subsequent brushing of the interface agent or putty can easily lead to cracking of the new brush wall.
Second, the interface agent thickness:
When the old wall surface is treated, no interface agent is applied, or the interface agent is too thin. If the indoor humidity changes, the wall putty is likely to appear hollow, cracks, and fall off.
Third, the thickness of putty:
If the putty is made too thick, the wall will be relatively easy to fall off in the future.
The putty of the wall paint is generally granted 2 to 3 times, and the thickness of the putty does not exceed 0.3 cm each time, and it must wait for the dryness to be approved.
Fourth, the ratio of materials:
Improper matching will affect the toughness and tension of the wall. The ratio of cement and sand should be 1:3 when the grass is plastered. If it is high, it will be easy to crack. The proportion of wall putty, the proportion of latex paint and water should be identified, otherwise it will cause wall paint cracking. . The later remediation will be troublesome.
Wall cracking treatment
If the wall has cracked and occurs within a small area, it can only be remedied as follows:
The first step is to remove all the cracks in the original wall surface and the surrounding walls, and shovel the walls. And clear the dust on the surface of the team.
The second step: use white latex, Dacron cloth stuck in cracking
The third step is to level the putty, dry it with fine sandpaper, and finally paint with latex paint.
If the wall is cracked, the shedding range is too large, and the situation is serious, you should make a decision to use the cure method to shovel all the walls and resurface the skin. When re-doing, it is important to note that the wall must be removed and the wall must be shovelled; then follow the correct procedure for the wall. It should be noted that the wall should be patched. Can not use kraft paper instead, because the lack of toughness after the dry kraft paper, easy to drive the cracking of the wall.
In the renovation of second-hand housing, in order to achieve the desired effect of wall decoration, it is necessary to eradicate all the walls. The other is to use the interface agent and wall lining or kraft paper, scrape the putty twice, and then polish it again. Anti-alkali primer, and two-coat finish. The above is the most basic processing method. I hope your decoration will not have the above problems. Of course, only a good foundation for the renovation can save you trouble in the future.
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