Moisture Mapping is crucial for maintaining building integrity and occupant well-being. Understanding acceptable moisture levels in drywall is essential to prevent potential issues such as mold growth. ### Acceptable Moisture Levels in Drywall The ideal moisture content for drywall is below 15%. Excessive moisture can weaken drywall's structural integrity, deteriorate its composition, and promote mold growth. Acceptable moisture levels vary based on the environment and climate, but generally range from 5% to 12%. ### At What Moisture Level Does Mold Grow in Drywall? Mold requires a moisture content of around 30% or higher to thrive. At levels consistently above 15%, mold can colonize and damage drywall. If drywall absorbs excessive moisture from leaks, floods, or high humidity, it creates an ideal breeding ground for mold. ### Prevention and Mitigation To prevent mold growth in drywall, measures should be taken to maintain acceptable moisture levels. This includes: - Repairing leaks promptly - Improving ventilation to reduce humidity - Installing dehumidifiers in high-moisture areas