Introduction
Moisture Mapping is a valuable tool for assessing moisture levels in wood structures and materials. It involves using specialized equipment to measure moisture content and create a visual representation of the readings. Moisture Mapping is used for various purposes, including identifying moisture intrusion, assessing damage, and monitoring drying progress during restoration projects.
Understanding Wood Moisture Content
Wood is a hygroscopic material, meaning it absorbs and releases moisture from the surrounding environment. The amount of moisture in wood is typically expressed as a percentage of the dry weight of the wood. Wood is considered:
- Green: When its moisture content exceeds 20%.
- Seasoned: When its moisture content is between 12% and 18%.
- Dry: When its moisture content is below 12%.
Can Wood Contain Over 100% Moisture Content?
Technically, yes. Wood can contain over 100% moisture content, a condition known as “waterlogged.” In such instances, the wood has absorbed so much moisture that its weight exceeds its dry weight by more than 100%. Waterlogged wood is typically found in areas with prolonged exposure to water, such as submerged logs or wood buried underground. When wood becomes waterlogged, its structural integrity is compromised, and it becomes susceptible to decay and rot.