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Moist interior walls - what to do?Damp interior walls are a serious problem that should be corrected.
Not only because damp walls can permanently damage the building fabric, but above all because this promotes the formation of mold fungi.
This, in turn, causes serious health problems for the residents.
Damp interior walls do not develop from one day to another, but are a tedious process. It can take years before the first signs of moisture damage on interior walls are even visible or the residents even realize that something is wrong in their apartment. But when the moisture becomes visible, it's high time to do something about it, because as if by magic, the moisture does not disappear.
Where do wet interior walls come from?
In order to be able to combat damp interior walls, a causal research must be carried out. For this it is helpful to get a specialist who can use special measuring methods to find out how the moisture could collect in the walls. A construction expert or a specialist from TÜV are the right contact person here.
The reasons for damp interior walls are very versatile, because it can be due to a wrong ventilation and heating behavior or even be a damage to the fabric for moisture responsible. A house is on the ground and is thus exposed to seepage and backwater. Through rain and snow, the water seeps into the ground and can be here
e.g. stowing on basement walls.
In this case, if there is insufficient insulation, water will penetrate the house from the sides and virtually creep under the roof in the masonry. However, moisture can also enter the masonry from below, which is the case when the groundwater level reaches to the basement. If the so-called horizontal barrier is defective or completely missing, then the groundwater penetrates from below into the masonry and the moisture can rise to the top.
Moist interior walls are not only due to incorrect ventilation and heating or due to construction defects. Humans as well as animals and plants produce moisture, for example when showering, cooking; wash and dry clothes. This moisture accumulates in the room air and ensures that the humidity increases.
In the air, the warm water vapor is stored, which is reflected on cold walls and windows. This is called in professional circles condensation moisture, which is a perfect breeding ground for mold.
What to do against damp interior walls?
As mentioned, it is important to know how the wet interior walls are made, because then there are several options available to dry. If structural defects are to be excluded, only the ventilation and heating behavior can bring about a change in the indoor climate. But if there are structural defects, then the measures are more extensive, labor-intensive and usually also associated with high costs.
One of the many different possibilities is the waterproofing that takes place when the moisture penetrates from the outside. When it comes to seepage or backwater, the moisture penetrates from the side into the masonry, or to groundwater, where the moisture comes from below, experts recommend a waterproofing with a Bitumendickbeschichtung.
This is root resistant and frost resistant and offers a very high level of safety. For this, however, the soil must be dug up. This is partly not possible, because under terraces or attached garages can be difficult to seal from the outside. In this case, a seal can be made from the inside. For this purpose e.g. Apply sealing sludge to the masonry inside the house and apply a special plaster.
There are many other methods and measures that can be taken with damp interior walls. Here is a conversation with a professional always recommended. This can already be done
Be the appraiser, who did the causes for the damp interior walls.