What does "leachability" refer to in wood preservation?

Leachability specifically refers to the tendency of preservatives to leach out of the wood when exposed to water. This concept is crucial in wood preservation practices because it directly impacts the longevity and effectiveness of the treatment applied to the wood. If preservatives leach out too quickly due to exposure to moisture, the wood becomes vulnerable to decay, insect infestations, and other issues, undermining the purpose of the preservation efforts.

Understanding leachability helps practitioners choose appropriate types of preservatives and methods for treating wood, especially in environments where the wood may frequently come into contact with water. It also informs guidelines on the use and maintenance of preserved wood products to ensure their durability over time.