4. Moisture transfer / Hygrometry

Air humidity in buildings is a combination of humidity from the outside environment (rain, soil and building moisture) and from the daily lives of its occupants, such as cooking, showering, washing clothes, etc. It's the result of a combination of these factors.

The consequence of this humidity is that organisms (molds, for example) can concentrate in certain areas.

If building materials can be damaged by cold and corrosion, humidity also has consequences: it considerably reduces the thermal resistance of materials. This in turn reduces the building's insulation, since an increase in heat loss increases the risk of mold.

To avoid such a negative development, it's important to respect the rules of humidity protection and design effective protection against its effects. To achieve this, certain values must be respected,...