Moisture Mapping is the process of measuring the moisture content of a structure to identify areas of excessive moisture that could lead to damage. Acceptable moisture levels vary depending on the material and location being tested. ### What is an Acceptable Damp Reading? An acceptable damp reading is a moisture level that is below the threshold where damage is likely to occur. The threshold varies depending on the material being tested. For example: **Material** | **Acceptable Damp Reading** ---|--- Wood | 12-15% Concrete | 20% Gypsum board | 10% It is important to note that these are general guidelines and the actual acceptable moisture level may vary depending on the specific conditions. For instance, higher moisture levels may be acceptable in areas with high humidity.