Moisture mapping plays a crucial role in preserving the integrity and longevity of wood structures and products. Accurate measurement and monitoring of wood moisture content (WMC) are essential to ensure optimal performance and prevent damage.

Wood Moisture Content: A Guide

Wood moisture content refers to the amount of water present in a piece of wood compared to its oven-dry weight. It is expressed as a percentage and directly affects the wood’s physical and mechanical properties.

• High WMC: Can lead to swelling, warping, cracking, and reduced strength.
• Low WMC: Can cause shrinkage, splitting, and increased susceptibility to insects and decay.

Preferred Moisture Content for Treating Wood

The preferred moisture content for treating wood varies depending on the treatment method and intended use.

Pressure Treatment:

• For optimal preservative penetration, WMC should be less than 25%.
• Higher WMC can impede the penetration of preservatives, reducing treatment effectiveness.

Kiln Drying:

• Most hardwoods and softwoods are kiln-dried to a WMC of 6-8%.
• This moisture level ensures dimensional stability and reduces the risk of warping and bending.

It is crucial to note that the preferred moisture content may vary for specific applications and wood species. Professional consultation is recommended to determine the appropriate moisture content for your project.