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Wet wall - how to dry and plaster?If there are damp walls in a house, it is important to act quickly. The consequences of untreated wet walls are very versatile.
Not only does it damage the building fabric, but in the worst case, it also means that a building is no longer habitable and must be demolished.
The health of the inhabitants is also endangered by damp walls, because they are the ideal breeding ground for mold fungi. And how negative mold can affect human health is well known. You can detect wet walls through dark and damp spots on the wall.
Furthermore, you can also discover in individual cases salt crystals that crumble from the wall. Even chipped plaster layers are a sure sign of damaged masonry due to moisture. Failure to do so will increase the concentration of moisture and salt in the masonry. As a result, the plaster continues to burst, rain can penetrate even more in the masonry and destroyed here in the long run the joints.
The causes of damp walls are very versatile, as are the measures. First and foremost, however, it must be clarified why the walls are damp. According to the result, then different measures are taken.
There are many methods that should be better left to a specialist. Meanwhile, there are also a number of modern renovation plasters, with which
you can dry a damp masonry. This measure can also be carried out by a skilled craftsman.
High-tech products: Renovation plasters for damp walls
In order to prevent that even more moisture penetrates into the masonry, a renewal of the outer seal is recommended. However, if it is a very slight moisture damage, keep
the remedial measures are limited.
Sometimes it may already be sufficient to cut off the old plaster and apply a new, modern renovation plaster. Modern renovation plasters are water-repellent and yet permeable. These plasters store the masonry salts so that perfectly moist walls can be rehabilitated.
When renovating damp walls you should be very generous. The damaged plaster should be removed up to 20 centimeters around the damp and visible area. If there are several damp spots on a wall, the plaster should also be cut off here generously. With the new plaster, it is essential to ensure that it is permeable.
This is the only way to ensure that the moisture already contained in the masonry can escape. If you pay attention then to a plaster that can simultaneously ward off the moisture from outside, you have created a very good measure against minor moisture damage.
Repair plasters are according to the manufacturer's specifications able to meet these two requirements. In addition, such high-tech products should be able to bind bulky salts that are in the masonry, and store them. So these salts can not get to the surface of the plaster and cause further damage here.
Attention! Find the cause of damp walls
Even if you can effectively treat minor moisture damage with such plasters, it should always be clarified which cause is responsible for the damp walls.
You can not always conceal everything with plaster and there is always a reason for moisture damage. At this point, for example, a construction expert can provide information on whether there are any structural defects in the area of the insulation of the floor slab or the outer walls of the cellar, which are then responsible for the penetration of moisture.
Such a construction expert can e.g. find at the TÜV. He not only explains where the moisture comes from, but also gives many tips for possible remedial measures.