Moisture mapping, a non-destructive technique used in commercial buildings, helps identify moisture levels within a structure. By understanding acceptable moisture levels, building owners can ensure the health and longevity of their properties.

### Acceptable Moisture Levels

Building materials, such as wood, plaster, and drywall, have inherent moisture levels. These levels vary based on the material type and environmental conditions. Acceptable moisture levels typically range from:

– Wood: 7-12%
– Plaster: 4-10%
– Drywall: 6-10%

When moisture levels exceed these limits, structural damage and mold growth can occur.

### What is a Bad Moisture Reading?

Moisture readings can indicate potential problems when they deviate significantly from acceptable levels:

– **Wood:** Readings above 15% indicate excessive moisture that can cause warping, rot, and pests.
– **Plaster:** Readings over 12% suggest water intrusion or damage, requiring immediate repair.
– **Drywall:** Readings above 12% indicate moisture issues that can compromise its integrity and increase mold risk.

Ignoring elevated moisture levels can lead to costly repairs, health hazards, and premature building deterioration. Therefore, it’s crucial to address moisture issues promptly when identified through moisture mapping.