What percentage is indicated for non-rotting fungi growth on wood?

The correct percentage indicating the threshold for non-rotting fungi growth on wood is 20%. Wood is a nutrient source for fungi, and certain environmental conditions, particularly moisture content, can encourage fungal growth. Non-rotting fungi typically become a concern when the moisture content of the wood reaches this critical level.

At 20% moisture content, wood fibers provide an attractive environment for non-rotting fungi, which can contribute to discoloration and other forms of wood degradation, though they do not lead to the structural decay associated with rotting fungi. Understanding this percentage is crucial for professionals in the field, as it informs the drying processes necessary to prevent fungal growth during structural drying efforts. Maintaining moisture levels below this threshold is vital in preserving wood integrity and avoiding secondary damage commonly associated with fungal infestations.