### Topic: Moisture Mapping ### Keyword: Moisture Mapping Moisture mapping is a non-destructive testing method that helps identify areas of excessive moisture within a building structure. It plays a crucial role in assessing moisture-related issues, such as dampness, mold growth, and structural damage. Understanding acceptable moisture levels is essential for effective moisture mapping. ### Acceptable Moisture Levels Acceptable moisture levels vary depending on the material, location, and climate conditions. In general, the following guidelines are recommended: - **Wood:** 6-12% - **Concrete:** <4% - **Drywall:** <15% - **Insulation:** <15% ### What Should Moisture Readings Be for Internal Walls? Moisture readings for internal walls should generally fall within the acceptable range for drywall, which is less than 15%. Higher readings may indicate moisture intrusion, condensation, or other moisture-related problems. - **Moisture readings below 10%:** Acceptable levels, indicating a dry and healthy wall. - **Moisture readings between 10-15%:** Slightly elevated levels, warranting further investigation to determine the source of moisture. - **Moisture readings above 15%:** Excessive moisture levels, suggesting significant moisture intrusion or other underlying issues. It's important to note that moisture readings can vary slightly depending on the specific location and conditions within the building. Therefore, it's recommended to consult with a qualified professional to assess the moisture levels and determine appropriate mitigation measures.