What is the most dangerous fungus for wooden structures and why?

The Most Dangerous Fungus for Wooden Structures:

The most dangerous fungus for wooden structures is the 'house fungus', also known as the weeping fungus. Unlike common fungi that do not decompose well-dried wood, the house fungus releases water during its decomposition process. This moisture causes the grey threads of its mycelium to always be covered in water droplets, rapidly turning even the driest wood into a powdery substance (rot).