The causes of mould infestation

Nutrients and moisture

Mould can develop in living spaces if nutrients and sufficient moisture are present. Structural factors, especially in combination with incorrect ventilation and heating behaviour or lack of technical ventilation, favour mould growth. Moisture then mostly appears in the form of condensation on the colder building components. Thermal bridges, e.g. in the area of the window reveal, the upper room corner on the outside wall or behind the cupboard standing close to the outside wall, are the most common types of damage. In addition, there is damage caused by direct moisture penetration of the masonry due to leaking roofs, cellars, pipes or averages.

The determination of causes

Moisture measuring devices, data loggers and calculation methods are available to experts for determining the cause. In practice, it has been shown that the interaction of several factors is often the cause of mould infestation in living areas. To ensure that mould does not form again within a very short time, it should be clarified in advance of the renovation what the cause of the damage is.

Cause check

Below you will find some of the common causes of mould infestation.