Moisture Mapping is a crucial technique in wood processing, ensuring optimal conditions and preventing potential issues. Wood Moisture Content (WMC) plays a significant role, and one question that often arises is whether wood can contain moisture content exceeding 100%.
The answer to this question is yes, it is possible for wood to contain over 100% moisture content. This occurs when the weight of the water in the wood is greater than the weight of the dry wood itself. It is referred to as “Above Fiber Saturation Point” (AFSP), where the cell walls of the wood are fully saturated and free water fills the cell cavities.
AFSP can occur due to factors such as:
Consequences of AFSP include:
It is important to note that while wood can exceed 100% moisture content, it is not an ideal or desirable state. To ensure wood’s stability, durability, and performance, it is recommended to maintain WMC within an appropriate range for the intended purpose. This typically involves achieving equilibrium moisture content (EMC), which refers to the balance between moisture within the wood and the surrounding environment.
Moisture Mapping provides valuable insights into the WMC of wood, enabling informed decisions regarding drying processes, storage conditions, and overall wood management. By understanding the concept of AFSP and its potential implications, professionals can effectively prevent moisture-related issues and enhance the longevity and quality of wood products.