The wallpaper that was just pasted for 3 months is now spotted 5

If the area is not large and the humidity is not strong, try drying it with a hair dryer. If it doesn't work, you still have to tear it off and restick it.

The wallpaper will be moldy, it must be because the wall humidity is too high, but I don't know if it was because the wall was not dried at that time or the exterior wall waterproofing was not done well?

1.If it is because the wall did not dry when pasting, then uncover it now to let the wall dry and then repaste it; As for whether the wallpaper can be reused, it depends on what material the wallpaper is made of and whether the bottom base of the wall is handled, the base putty is done well, and if there is a varnish or base film, slowly tear it off, PVC and non-woven fabrics should be able to be reused, and the pure paper is estimated to be unusable.

2.If the exterior wall waterproofing is not done well, and the wall seeps water outward, then it is not a problem to change the wallpaper, the bottom of the wallpaper is paper, and it cannot prevent water.

Is your house a unit or a self-built house? Generally, the unit built by the developer will do a good job of waterproofing the exterior wall, and basically there will be no water seepage on the wall.

It's not saved, find a wallpaper shop, they are responsible, don't say anything about the exterior wall waterproofing is not done, and the wallpaper inside should be put on the wall with a few layers of varnish to prevent the resurgence of moisture from the wall.

So soon there will be such a problem, so there are problems with wallpaper, there are problems with construction, and there are problems with the natural environment.

You're in the southern region, where there are floods, the air is relatively dry, so it's not appropriate to stick it during this time, and there is a wall problem, the wall is not painted with primer? After the primer is brushed, you still need to roll it with a base film, and then paste the wallpaper.

After the master finished pasting the wallpaper, did he have the glue to scrub the surface? And did you close the doors and windows so that he could naturally seal them for a while?

Tear a hole! Shovel the ash and then sweep back the ash and then sweep the oil! This is a professional question! I don't know if just a few words can help you!

If it's a problem with the construction of the wallpaper shop, you just want him to pay for it, if you don't do it yourself,,, you have to tear it up!!

It may be that the primer or base film is not done well before it will become moldy!

This is only known on the spot;

Did you have dark paint on the walls? Pasting light-colored wallpaper will come through.

There are voids and bacteria grow in and mold.

There may be a problem with your walls.

Check whether there is water seepage on the wall and moisture on the wallpaper.

The wall is seeping water, and this is not easy to repair.

Could it be that the wall is not dried and pasted?

1. Check whether there is water seepage on the roof.

2. Ask you if the construction manager has done water discharge treatment on the wall.

3. Uncover the wallpaper to see if the wall itself begins to have a resurgence phenomenon from the bottom wall 4. If it is a problem with the bottom wall, find a developer or construction unit, there is a problem with the project.

The workaround is:

Doors and windows should be opened during the day to maintain ventilation; Close the doors and windows at night to prevent moisture from entering, and also to prevent the wallpaper that has just been pasted on the wall from being blown loose by the wind, which will affect the firmness of the paste.

Vacuum and clean the wallpaper and wall cloth regularly, and pay attention to changing the suction head of the vacuum cleaner.

The water-resistant wallpaper can be scrubbed with water, and dried with a dry towel after washing. For wall cloths that are not resistant to water, such as sea jib wall cloths, wipe them with erasers, etc., or use a towel dipped in some cleaning solution to wring them out and wipe them gently.

Usually pay attention to prevent hard objects from hitting and rubbing against wallpaper and wall cloth.

If there are cracks in the joints, they should be subsidized in time and cannot be allowed to develop.

It is most likely that the walls are not thoroughly dried after being painted and there is a lot of moisture inside the walls.

I can't see it clearly, is it on every seam, wipe it with a sponge or rag semi-dry erase, see if it will be better, if not, you have a gelatinous spray on a certain treasure.

Can't see clearly, huh? Describe the situation.

The official ships are chaotic, and it all depends on you to raise your value.

I'm a renovation company and I've had this kind of problem. There are about a few categories.

One: it may be that the quality of the wallpaper is not good.

Second: It may be that you didn't pay attention in your life, and there were water stains spilled on it.

Second: it may be that the building is still new, and it began to be installed in a hurry, and the moisture of the wall ash did not disperse, and then the weather was not dry recently, and it became moldy in the wallpaper and wall ash, and seeped out into black spots.

In general, it is difficult to clean from the outside, only from the inside. You may want to tear off the wallpaper, shovel off the moldy wallpaper, reapply the moisture-proof paint and wait patiently until it dries thoroughly before applying new wallpaper.

Not... This is the most common, there are special circumstances to ask me.

If you don't ventilate after decoration, even if the decoration company didn't dry the base layer (putty layer) at that time, you can't hold people accountable now. To put it bluntly, even if the base layer is dry, you are not ventilated, and if the room is a little damp, it will be mildew.

There are also different textures of wallpaper, including PVC, paper, non-woven fabrics, chemical fibers, etc., so the performance is not the same after being wet. Generally, the ventilation of non-woven fabrics is better and is not prone to major problems, while PVC and other fabrics are easy to bulge.

First, you can be sure that it can't be a problem with the construction workers, and secondly, if the wallpaper is just finished, it can be accepted, which means that the wallpaper itself is not too problematic. Third, it is possible that the grassroots are not dry. But if the decoration company is only responsible for the putty, and the paving wallpaper is the person you find yourself, then it has nothing to do with the decoration company, because when paving the wallpaper, the worker should confirm the moisture content of the wall, if it is very damp, he should not pave it for you!.

Dear, my wallpaper also appears in the same situation as yours, but we are the entire children's room wallpaper mold, the others are not moldy, but also ventilation for more than half a year, the master said that the cause of the wallpaper mold is caused by moisture, what to say about the weather, water pipe leakage, etc., today tear open to see the wall is still in vain without mold, but they will not admit that it is the problem of their wallpaper, it is said that it is caused by a variety of reasons, plus we here recently Huang Meitian is even more unclear what the reason is. Now they say let's choose another wallpaper and paste it again, but they still haven't found the root source. Dear, how did your family deal with it later?

The wallpaper is moldy because of moisture. It has nothing to do with anything else.

It should be that the wall of the decoration company did not dry thoroughly when it was primed.

If it is damp, try to ventilate it as much as possible, and it will be better to dry it.

It's not done, it's no problem if the ventilation disappears. If there are still spots, go to the merchant.