![]() This saves you from always having to wait for the right moment to ventilate the room – after all, this can be difficult at night or during the working day. If you want to make sure that nothing goes wrong when it comes to room air regulation, the air exchange can also be carried out through automatic cellar ventilation. The number one cause of moisture damage is and remains incorrect behavior when ventilating the basement – above all through a permanently tilted window when the outside temperature is warm and the inside temperature is cool. Party rooms and basement apartments for guests are usually insulated and can be heated, so that the basement never cools down too much and the contrast to the outside temperature is also less pronounced in summer. On the other hand, when it comes to moisture damage, the decisive factor is whether the rooms are inhabited or uninhabited. However, if there is water damage, leaky windows or ailing masonry, correct cellar ventilation cannot do anything against the damage, as too much moisture is permanently present or entering. How susceptible a basement is to moisture damage depends, on the one hand, on the construction method: In new buildings with insulated basement floors, there are usually fewer problems than in houses that were built before 1970: If a basement is well insulated and has dry outer walls, it can be As a rule, you can avoid summer condensation by ventilating the basement properly. We explain to you what you have to consider when ventilating the basement. In this case, cellars need separate ventilation for the fresh air supply. In the area in contact with the ground, there are also no joints and cracks for a natural exchange of air and the exchange of air through windows is also less, because these are either smaller and lower or not present at all. Little by little, large-scale mold develops. Because cold air can absorb less moisture and the excess moisture is absorbed by the cellar walls and pulls into the masonry. Because located underground, the cellar is the coldest room in the house and is therefore at risk from moisture damage: If you let warm, humid air into the rooms from outside, it will cool down quickly inside and condense on the walls. But doing so can only make the problem worse. This is especially true of the basement, which is often prone to a musty smell. When the temperatures rise in spring, many feel the urge to open windows and doors wide and let fresh air into all rooms.
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