Moisture mapping is a valuable tool for detecting and assessing moisture levels in various building materials, including drywall. Understanding acceptable moisture levels is crucial for preventing structural damage, mold growth, and other health hazards. ### Acceptable Moisture Levels For drywall, an acceptable moisture content generally ranges from 6-12%. Moisture levels above this range increase the risk of: - **Structural damage:** When drywall absorbs excessive moisture, it can weaken and become damaged, leading to structural issues. - **Mold growth:** Mold thrives in moist environments. High moisture levels in drywall provide ideal conditions for mold to proliferate, posing health risks. ### What is a Normal Moisture Reading for Drywall? Moisture readings for drywall are typically measured using a moisture meter. A normal moisture reading for drywall should be: - **Between 6-12%:** Indicates acceptable moisture levels. - **Below 6%:** May indicate under-drying or a lack of moisture penetration. - **Above 12%:** May indicate moisture damage or the presence of a leak.