dryrot

Dry rot is a type of wood decay caused by certain species of fungi that digest the wood's cellulose and lignin. Contrary to its name, dry rot requires moisture to initiate the decay process, though it can spread into dry timber once established. The fungi responsible, most commonly Serpula lacrymans, thrive in damp, poorly ventilated environments.

The visible signs of dry rot can include cuboidal cracking of the timber, a brittle and powdery texture, a musty smell, and the presence of a white or greyish fungal mycelium. This mycelium can spread across masonry and other building materials, seeking out new sources of moisture and timber. In advanced stages, the affected wood can become so weakened that it loses its structural integrity.

Dry rot is primarily a problem in buildings, particularly older ones, where leaks or condensation can create the necessary damp conditions. Identifying and eradicating dry rot involves addressing the source of moisture, removing all affected timber, and sometimes treating surrounding masonry. Professional inspection is often recommended to ensure complete removal and prevent recurrence. Prevention strategies focus on maintaining good ventilation and promptly repairing any water ingress.