Can The Walls Be Moldy With Wallpaper And Wall Coverings?

Apr 11, 2022

If the wall is moldy, wallpaper cannot be pasted. If the moldy wall is not treated, directly pasting wallpaper and wall covering will cause the following problems.

(1) The sticking between the wallpaper wall covering and the wall is not firm, there are hollow bulges, blisters, and then the edges fall off.

(2) The glue used to paste the wallpaper and wall covering provides sufficient nutrients for the existing mold. In the new environment, the mold will explode and grow wildly, and the area and degree of mold will be larger.

wallpaper cover

Causes of dampness on the wall

The main factor that causes mold on the wall is moisture. To solve the mold, we need to solve the problem of moisture on the wall. There are two aspects that cause the wall to be damp:


(1) Caused by water seepage inside the wall. In this case, the fundamental problem needs to be solved. Do waterproofing first, shovel out the moldy area and the soft walls nearby, and then spray the mold remover on the moldy area to kill the mold and prevent the growth of mold. Re-scrape the putty powder and brush the wall base film.


(2) Mildew is caused by the orientation of the house, the external environment, or the humidity of the air. According to the damage to the wall caused by the mold, if the situation is not serious, wipe the mold spot first, and then spray the mold remover on the moldy area; Putty powder, wall base film.


How to avoid mold on the walls again?

It is not difficult to prevent the walls from getting moldy again.


First, when installing hard, do a good job of waterproofing, and the waterproofing of the roof, exterior walls, windows, and indoor wet areas must be up to standard.


Second, during the construction of wallpaper and wall covering, use a moisture meter to measure the humidity of the wall, and construction can only be carried out within 8%.


Third, daily maintenance should be done indoor drying. During humid weather, keep windows open as little as possible.


In wet weather, dehumidifiers, air conditioners, fans, and air conditioners can be used to absorb moisture from the walls. Once the wall or furniture has moisture, it should be wiped off with a dry cloth immediately.


The daily indoor maintenance is well done, not only the indoor wallpaper and wall covering, but also the indoor books and clothes will not get moldy.