Moisture mapping involves utilizing non-invasive moisture meters to accurately measure the moisture content of wood, providing valuable insights into its condition and identifying areas susceptible to moisture-related issues like mold growth. ### Wood Moisture Content The moisture content of wood refers to the amount of water present within its structure. This moisture can be categorized into three types: - **Free water:** Unbound water that resides within the cell cavities and can be easily removed by evaporation. - **Bound water:** Water that is chemically bound to the wood's cell walls and cannot be evaporated under normal conditions. - **Hygroscopic water:** Water absorbed from the atmosphere due to humidity and wood's ability to absorb moisture. ### At What Moisture Content Does Mold Grow on Wood? Mold growth on wood is primarily influenced by its moisture content. As a general rule: - **Below 15% moisture content:** Mold growth is unlikely due to insufficient moisture for mold spores to germinate and thrive. - **Between 15% and 20% moisture content:** Mold growth becomes possible, particularly in areas with poor ventilation or high humidity. - **Above 20% moisture content:** Mold growth is more likely to occur, especially in warm and humid environments. ### Conclusion By understanding wood moisture content and the relationship between mold growth, Moisture Mapping enables early detection and intervention. It helps prevent moisture-related damage, ensuring the longevity of wooden structures, preventing health hazards, and maintaining the overall integrity of buildings and other wooden assets.