Moisture mapping is a proactive measure to ensure the integrity and longevity of residential and commercial properties. It involves measuring and documenting moisture levels within building materials, such as drywall. Acceptable moisture levels are crucial for maintaining optimal building conditions. ### What is an Acceptable Moisture Reading for Drywall? Normal moisture readings for drywall typically fall within a range of 5% to 15%. This range ensures that the drywall is sufficiently dry to prevent mold growth, structural damage, and other moisture-related issues. Readings above 15% indicate excessive moisture that requires prompt attention. ### Factors Affecting Acceptable Moisture Levels Several factors influence acceptable moisture levels in drywall, including: