Moisture content is a critical factor in determining the properties and behavior of wood. As a hygroscopic material, wood constantly interacts with its surrounding environment, absorbing and releasing moisture. The amount of moisture present in wood is expressed as a percentage of its dry weight.
Under certain conditions, wood can indeed contain moisture content exceeding 100%. This phenomenon occurs when the wood’s cell walls become fully saturated with water, and additional moisture is absorbed into the cell lumens and intercellular spaces. When wood reaches this level, it is commonly referred to as “saturated” or “above fiber saturation point” (FSP).
Saturated wood exhibits a number of characteristics:
Understanding wood’s moisture content and FSP is crucial in many industries, including construction, woodworking, and forestry. Moisture mapping techniques are employed to determine the moisture distribution within wood structures, helping to assess their integrity and identify potential problems. By understanding the relationship between moisture content and wood’s properties, we can make informed decisions about its use and maintenance.