**Wood Moisture Content**
Wood is a hygroscopic material, meaning it readily absorbs and releases moisture from the surrounding environment. The moisture content of wood is expressed as a percentage of the weight of the wood when oven-dry. For construction purposes, the ideal moisture content for wood is between 7% and 10%.
**At What Moisture Content Does Mold Grow on Wood?**
Mold is a type of fungus that requires moisture to grow. When the moisture content of wood exceeds 20%, it creates an ideal environment for mold growth. This is because mold spores can germinate and grow in moist environments, and they can spread rapidly through the wood’s pores.
Mold growth on wood can cause significant damage, including structural weakening, discoloration, and the release of harmful toxins. Therefore, it is crucial to keep the moisture content of wood below 20% to prevent mold growth.
**Moisture Mapping**
Moisture mapping is a process used to identify and quantify areas of moisture in a building’s structure. This process involves using a moisture meter to measure the moisture content of wood and other building materials. Moisture mapping can help identify areas where there is a high risk of mold growth and can inform decisions about necessary repairs or remediation measures.