Moisture Mapping Wood Moisture Content and Mold Growth

Wood Moisture Content

Determining the moisture content of wood is crucial for various reasons, including predicting its dimensional stability, preventing decay, and assessing its suitability for specific applications.

At What Moisture Content Does Mold Grow on Wood?

Mold growth on wood is a common concern, as it can compromise the wood’s structural integrity and create health hazards. The ideal moisture content for mold growth on wood is typically between 16% and 25%. When the moisture content exceeds these levels, the wood becomes susceptible to mold colonization.

Factors Affecting Mold Growth

Aside from moisture content, several other factors can influence mold growth on wood, including:

• Temperature: Mold growth is optimal within a temperature range of 77°F to 90°F.
• Humidity: Mold requires a humid environment, typically above 60% relative humidity.
• Wood species: Some wood species, such as oak and maple, are more resistant to mold growth than others, such as pine and spruce.