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Rising moisture in the brickworkIf there is talk of rising damp in masonry, one speaks in professional circles of a capillary wall moisture, a capillary moisture or rising soil moisture.
Basically, however, it means that moisture in the floor of a building rises up into the walls of the building.
Despite all physical laws, moisture is able to rise, due to the fact that most building materials have small pores. These absorb practically the water from the soil, so that the humidity upwards.
How much moisture can rise in a masonry depends on various factors. For example, the size of the pores in the built-in materials plays an important role, and the type of wallpaper or paint also influences how high the moisture can migrate in a masonry.
Not least, the moisture content of the soil is crucial. In most cases, the moisture creeps up to a height of about 1.5 meters. But there are also extreme cases in which the humidity can stand two meters and higher in the room.
Causes of rising damp in masonry
If moisture can rise in a masonry, this is due to the fact that the isolation of the cellar, here the part that lies under the soil, is not sufficient. Furthermore, water can also be poured over the bottom plate of a building
get into the masonry and then make the way from here to the height.
There are many ways to prevent the rising damp in masonry. But always should
be aware that it is better to find the causes of moisture ingress and to correct them.
This is the only way to protect the building fabric from moisture damage in the long term, and ultimately also the health of the inhabitants. Because, as is well known, moisture is responsible for the formation of mold. In turn, the mold can cause numerous illnesses and allergic reactions.
If damp masonry is not rehabilitated, it not only leads to an increase in mold growth, which can make the building uninhabitable, but also the building fabric is significantly damaged. In the worst case, this can lead to the demolition of the entire building.
Possibilities of rehabilitation of rising damp in masonry
Moisture makes its way up above all over the joints. Even if a house is made of impervious bricks, moisture can still make its way over the joints. Therefore, in a new building an impermeable mortar should be used, since so no moisture can get through. Even with a renovation is then pay attention to the joints.
Since moisture in masonry is all about finding the causes, one should rely on the know-how of a specialist at this point. This does not only refer to taking the measures for the drainage of the masonry, but begins with the root cause research. Experts are, for example, construction experts who can be found at the TÜV.
Through different measurements, they can find out the reason for the moisture in the masonry and quantify the extent of the damage to the building fabric. According to these results, surveyors usually give a recommendation for the remedial measures that most likely promise the desired success.