It is common to assume that walls in buildings should remain completely devoid of moisture. However, building components often have moisture content to some degree, which can vary based on factors such as the climate, building age, and construction methods. Therefore, it is important to differentiate between normal and excessive/harmful moisture levels.
Generally, moisture levels in walls below 15% are considered normal and do not pose significant risks to the structure or occupants’ health. This range allows for natural moisture absorption and evaporation processes that occur within the building envelope.
Moisture levels exceeding 15% can indicate the presence of leaks, condensation, or other moisture intrusion issues. High moisture levels can lead to:
Indicators of excessive moisture in walls include: