To prevent or control growth of fungi in wood, what is the maximum wood moisture content recommended?

The recommended maximum wood moisture content to prevent or control the growth of fungi in wood is typically around 20%. Fungi, including mold and rot, thrive in environments with excessive moisture. When wood moisture content rises above 20%, it creates an ideal environment for fungal growth, leading to degradation and damage over time.

Maintaining wood moisture levels at or below this threshold helps to ensure that the wood remains structurally sound and free from biological threats. Controls such as proper design, ventilation, and moisture barriers are essential for keeping moisture levels low, which is critical in both residential and commercial settings to extend the lifespan of wood materials.

In contrast, the lower moisture content options, such as 10% and 15%, are ideal for certain applications or for specific types of wood. However, the threshold for stopping fungal growth effectively is generally set at around 20%. Exceeding this level can significantly increase the risk of infestation by fungi, which is why understanding this moisture content is crucial for prevention strategies in wood preservation and pest control.