Many people decorate their houses with beautiful wallpaper, but it has been moldy for several years. It's really ugly. What should I do if the wallpaper is moldy? What causes the moldy wallpaper? Let's have a look.
How to clean the moldy wallpaper
New wallpaper
If the moldy area of the wallpaper is large and the moldy area is serious, even if it can be cleaned, it will not look good, and I also think it's time to change the style, then simply replace these wallpaper and replace some new ones.
Wipe with soapy water and detergent
If the moldy wallpaper is not very big, it can be remedied by cleaning the wallpaper in time. First of all, it is recommended to use soapy water or detergent to wipe the wallpaper. If the mildew is not serious, wipe it for two or three times to remove the mold.
Bleaching water cleaning
Another way to get rid of mildew is to use bleach. But it is easier to stimulate the skin. When using it, remember to wear plastic gloves, and use it with water. Bleach may remove the original color. So you can choose some special mildew remover to deal with the mildew spots on the wall. You can ask at the shop where you buy wallpaper.
Alcohol cleaning
If the mold is not too serious, you can use 80% alcohol to wash the wallpaper. When cleaning, pay attention to ventilation, and wear protective gloves, masks and glasses. In order to avoid further mildew, we should pay attention to drying the wall thoroughly, eliminating the causes of mold and properly heating and ventilation.
The reason of moldy wallpaper
1. Seasonal mildew
If it's caused by the season, it's better not to repair it immediately. Because the water in the wall is gradually volatilizing, if the water is not completely volatilized, brush a new paint surface, the water on it will continue to volatilize, and it will come out from other places, at this time, the wall will continue to mildew.
2. Wall insulation is not well done
If the wall insulation measures are not done well and moldy, first check whether the wall insulation treatment has been done. Knock the wall with the inspection hammer. If the sound is hollow, it means that the wall has a thermal insulation layer. If the sound is dull, it means that the wall does not have a thermal insulation layer. If there is a thermal insulation layer, it is necessary to check whether there is a crack in the outer wall of the building. If there is no crack, it means that the thermal insulation material is unqualified and needs to be replaced.
Many people will stick wallpaper to look good when they decorate. If they don't have good protection, the wallpaper will be moldy after several years. What should we do at this time?
How to prevent mildew of wallpaper
1. Choose a breathable material
In the market, there are many wallpaper materials, such as non-woven fabric, wood fiber, PVC, glass fiber base material, cloth, etc. comparatively speaking, PVC wallpaper is the most difficult to ventilate, and it is also the most likely to cause mildew.
2. Keep walls dry
The wall must be kept dry. The wall just constructed should be placed for 20 to 40 days before the wallpaper can be laid. Before you post the wallpaper, you need to finish the base. If it is a second-hand house renovation, the gap in the wall must be filled, otherwise it is easy to cause hollowing.
3. Pay attention to the quality of paving
Three materials and seven parts project, pay attention to small details when laying wallpaper on the wall, which can achieve better results. Wallpaper generally has a variety of patterns. When paving, it is necessary to pay attention to whether there is a large gap between the two wallpapers and whether there is alignment of the mosaic.
4. Insist on use and maintenance
Proper maintenance can prolong the life of wallpaper and enhance its moisture-proof function. During the construction period and within 24 hours after the completion of the construction, it is better not to fully open the windows and doors. Too much wind will cause sharp drying and uneven shrinkage of wallpaper, which is easy to cause cracks at joints. After laying for 3 days, pay attention to adjust the ventilation. Open the doors and windows during the day to keep the ventilation. Close the doors and windows at night to prevent the moisture from entering. This can make the wallpaper paste more closely.