**Moisture Mapping** is a crucial part of any construction inspection. Moisture Mapping detects moisture problems in buildings, helps diagnose the origin of moisture problems, and identifies areas with moisture issues that may require further investigation or remediation. ### Acceptable Moisture Levels In general, acceptable moisture levels for buildings are as follows: * Wood: less than 12% * Concrete: less than 5% * Drywall: less than 15% Maintaining appropriate moisture levels is important for the health and longevity of a building as well as the health of the occupants. ### What is a Normal Moisture Reading for Drywall? Normal moisture readings for drywall should be less than 15%. Moisture readings between 15% and 20% indicate slight moisture issues that may require monitoring. Readings above 20% indicate a significant moisture problem that requires immediate attention. **Disclaimer:** Moisture readings can vary depending on the type of drywall and the environment in which it is installed. It is always advisable to consult with a qualified professional for accurate moisture level assessments.