What type of lumber can kill fungi due to its high temperatures during processing?

Kiln-drying lumber involves a process where the wood is subjected to high temperatures, which effectively reduces its moisture content. This high-temperature process not only aims to create a stable product that minimizes warping and ensures a uniform moisture level throughout the lumber, but it also serves a significant purpose in the treatment of pathogens, including fungi. As the lumber dries in the kiln, the heat can kill off any existing fungal spores and significantly lower the risk of future fungal infestations.

This process makes kiln-dried lumber a favorable choice for construction, as it enhances durability and reduces the likelihood of decay caused by mold and fungi. The other types of lumber listed do not utilize high temperatures in their processing methods, meaning they do not have the same level of efficacy in eradicating fungi or preventing future growth.