Moisture mapping involves inspecting an area to determine the extent of moisture presence and its distribution. Acceptable moisture levels vary depending on the material being inspected and the environment.
### Acceptable Moisture Levels
**Wood:**
– Flooring: 6-12%
– Framing: 10-15%
**Concrete:**
– Slabs on grade: 2.5-5%
– Below grade: 1%
**Sheetrock:**
– 0-1%
### What is a Bad Moisture Reading?
A bad moisture reading indicates an excessive amount of moisture that can cause damage to the material or structure.
**Wood:**
– Readings above 15% can lead to rot, warping, and mold growth.
**Concrete:**
– Readings above 5% can weaken the structure and promote efflorescence (white powder deposits).
**Sheetrock:**
– Readings above 1% can cause warping, blistering, and mold growth.
### Importance of Moisture Mapping
Moisture mapping helps identify potential moisture problems before they become significant. By understanding acceptable moisture levels and recognizing bad moisture readings, individuals can take proactive measures to prevent damage and maintain a healthy environment.