Dry Rot is the least common variety of wood rot fungus. It is also the most destructive as it destroys the very cells of wood, reducing it, eventually, to a crumbly substance. Unlike wet rot, Dry Rot can occur in the absence of damp timber - for this reason, poorly ventilated areas are of particular risk.
Symptoms of dry rot include:
- a fungal smell
- white, sometimes yellow or lilac tinged, fungal growth
- rust coloured fungal growth (when dry rot is well established)
Because Dry Rot only needs a humid atmosphere to spawn, it is not confined to particular parts of timber but can spread rapidly like an infection. It occurs more frequently in older buildings and in sub floor timbers where underground humidity and poor ventilation are combined.
It can spread rapidly and, if left untreated, can cause serious structural damage and eventually collapse a building. Furthermore, it can spread to neighbouring buildings. Dry Rot is a serious problem and a Surveyor should be contacted at the slightest suspicion of its presence.