Moisture Mapping involves the meticulous measurement and analysis of moisture distribution within structures. By utilizing this method in construction, one can comprehensively assess moisture levels, identify potential risks, and implement effective strategies for moisture management.
Wood is a hygroscopic material, meaning it readily absorbs and releases moisture from the surrounding environment. The moisture content of wood refers to the amount of water present in the wood relative to its dry weight. This moisture can significantly impact the wood's properties and performance.
Under normal conditions, the maximum moisture content that wood can hold is approximately 30%. This moisture is primarily bound to the wood's cell walls and intercellular spaces.
However, in certain circumstances, such as extended exposure to water or flooding, wood can absorb excessive amounts of moisture, exceeding 100% of its dry weight. This condition is known as "free moisture" or "unbound moisture."
Unbound moisture is not bound to the wood's structure and exists in the wood's pores and voids. This type of moisture can cause significant damage to wood by promoting the growth of mold, mildew, and rot.
It is important to note that while wood can contain unbound moisture, this condition is not desirable and can lead to serious structural issues.