- Why is mold harmful under wallpaper?
- Than treat the walls before wallpapering?
The appearance of mold on the walls of the room, unfortunately, is a very frequent problem for our apartments. The situation has become especially aggravated after the appearance of popular plastic windows now, as they protect well from the cold, but they do not let air in at all. In this article we will share with you the most accessible and effective advice on how to treat walls from mold and fungus before wallpapering.
to the contents ↑Why is mold harmful under wallpaper?
Before deciding on the problem and selecting the most suitable method to treat the walls before you wallpaper the mold, you need to figure out what it is and where it comes from.
The main reasons for the emergence and maturation of mold fungi include the following:
- increased air humidity in the room;
- violations in the operation of the ventilation system;
- recently replaced wooden windows with hermetic plastic;
- limited air circulation in the room, which is most often associated with the interior objects close to the walls.
Important! The cause of the appearance of mold on wallpaper after a recent repair may be a violation of the basic technology of its conduct.
If you notice the mold under the wallpaper after repair, what to do should be done immediately, since such a neighborhood can adversely affect your health. Spores of mold fungi that spread through the air can cause the following ailments:
- is a household allergy that affects mainly the mucous membranes of the respiratory tract and skin;
- cardiovascular diseases, cough and migraine, which often appear as a result of intoxication of the body under the influence of fungal spores;
- increased fatigue and a significant decrease in overall performance;
- exacerbation of the person presenting with chronic diseases.
The above facts are the most weighty argument for explaining the need for mandatory processing of walls before wallpapering.
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Than to treat the walls before wallpapering?
Since mold fungi are a fairly common problem and multiply by spreading spores in the atmosphere, the complex approach to solving the problem should be used to tackle the problem. The process of getting rid of mold will consist of several main stages.
Stage one: free the walls from the old
coating. If the mold appeared on the wallpaper surface, then they should be removed from the walls:
- In order for the wallpaper to go off as easily and quickly as possible, they should be treated with warm water. To do this, it is necessary to soak the surface of the wall covering with a moistened rag beforehand. The increased humidity will facilitate easy peeling of the pasted wallpapers, and accordingly - to their prompt removal.
Important! To impregnate the old wallpaper layer with warm water, you can use not only rags, but also a common construction roller.
- If the coating reliably holds on the surface of the wall, then installation in a room filled with hot water buckets will help. The liquid will evaporate and accordingly an increase in humidity and temperature will contribute to the detachment of the wallpaper from the wall surface.
- After the work on the removal of the old coating is completed, the nails, dowels and other unnecessary building elements in the wall are removed. Completely cleared the walls, use the building level to determine the smoothness of the wall surface.
Phase two: fighting with dampness and mold
Since the main cause of mold growth on the walls is indoor dampness and insufficient ventilation, attention should be paid to eliminating these indices in order to prevent it from reoccurring.
To cope with an adverse microclimate in the apartment will help the following actions:
- modify the ventilation system indoors;
- install ventilation valves on the structure of plastic windows;
- create additional waterproofing of the floor covering;
Important! Particularly relevant is the floor waterproofing for apartment owners on the first floor of a multi-storey building, where there may be increased humidity due to the basement.
- monitor the humidity in the room.
Stage three: level the walls of the
If after cleaning the surface of the walls from the old wallpaper coating you see irregularities and differences that exceed 2 cm, then special attention should be paid to leveling the surface. For such works, special types of plaster from gypsum mixture are often used. When leveling, the surface is usually operated by two spatulas, and the final state of the wall is checked using a building level.
Important! After the surface of the wall is brought to a perfectly flat state, the applied layer of gypsum plaster should dry. After that, it is possible to apply an antiseptic primer on its surface to treat the walls from mold and fungus before gluing the wallpaper of .
Stage four: we treat the walls with antifungal agents
After the surface of the walls has been cleaned from the old coating and leveled with plaster, it is possible to proceed safely to special surface treatment from mold fungi. The work is carried out in accordance with the following recommendations:
- Initial surface treatment - by applying a special formulation, which can be a solution of copper sulfate.
Important! Such a preparation is prepared by mixing 0.1 kg of active substance per 10 liters of water. On the wall, the resulting solution can be applied with a construction roller or sprayed with a spray gun.
- Wipe the wall surface with a dry cloth, which helps to remove fine dust and chemical residues.
- Treat the wall surface with a special antibacterial primer, which can be purchased in almost any construction shop.
In this article, we told you how to get rid of the molds on the wall and prepare its surface to be pasted with new wallpaper. We hope that following the recommendations above, you can once and for all get rid of the unpleasant mold on the walls of your apartment.