Moisture Mapping is a technique that permits the visualization of moisture distribution in building materials. This can be useful for identifying areas at risk of mold growth, as well as for diagnosing and repairing moisture problems. Wood Moisture Content is the amount of water present in wood, which can be expressed as a percentage of the oven-dry weight. When wood absorbs moisture, it swells, causing it to lose strength and become more susceptible to rot and decay.

### **At What Moisture Content Does Mold Grow on Wood?**

Mold spores are always present in the air, but they only begin to germinate and grow when conditions are favorable. One of the most important factors that determines whether or not mold will grow on wood is the moisture content. Mold can grow on wood with a moisture content of 20% or higher, though some species can grow at even lower moisture levels.

### **How to Prevent Mold Growth on Wood**

The best way to prevent mold growth on wood is to keep the moisture content below 20%. This can be achieved by:

– Using treated wood that is resistant to rot and decay
– Sealing wood surfaces with a water-repellent finish
– Maintaining proper ventilation in areas where wood is present
– Inspecting wood regularly for signs of moisture damage

### **Conclusion**

Moisture Mapping is a valuable tool for identifying areas of high moisture content in wood, which can help to prevent mold growth. By understanding the relationship between wood moisture content and mold growth, you can take steps to protect your wood from this damaging fungus.