Timberpedia

Fungi attacks timber when these conditions are all present:

1. The timber moisture content is above 20%
2. The environment is warm enough
3. There is air

Wood with less than 20% moisture remains free of fungi for centuries. Similarly, wood submerged in water will not be attacked by fungi because of absence of air.

Fungi timber defects:

1. Blue stain
2. Brown rot
3. Dry rot
4. Heart rot
5. Sap stain
6. Wet rot
7. White rot