Moisture mapping is an essential tool for detecting and mitigating moisture problems in buildings. It provides a detailed understanding of moisture distribution, helping professionals identify areas at risk of mold growth and other structural damage. ### Acceptable Moisture Levels Maintaining appropriate moisture levels in drywall is crucial. Damp conditions can promote mold growth, leading to health concerns and costly repairs. Acceptable moisture levels vary depending on the specific material and environment, but generally fall within the range of: * **0% to 15%:** Dry and safe conditions * **15% to 20%:** Slightly elevated moisture levels, potentially indicating a problem * **20% to 30%:** High moisture levels, immediate action required ### At What Moisture Level Does Mold Grow in Drywall? Mold typically begins to grow when moisture levels in drywall reach or exceed 15%. At this threshold, conditions become favorable for mold spores to germinate and colonize. Prolonged exposure to moisture above 20% can result in significant mold growth and potential structural damage. Detecting moisture problems early is essential for preventing mold growth and its associated hazards. Moisture mapping empowers professionals with the knowledge to identify and address moisture issues effectively, safeguarding the health and integrity of buildings.