The dry rot fungus, Serpula lacrymans, is regarded as the ‘cancer’ of buildings. Dry rot fungus thrives in dark, poorly ventilated, damp indoor environments. As such, it’s frequently able to spread extensively before the damage is noticed. The destructive nature of Serpula lacrymans has led to the belief that the dry rot fungus is indestructible and that the whole building would have to be demolished once infested. Serpula lacrymans, however, is vulnerable to dry conditions. Similar to all fungi it has water as an essential growth requirement, and it is this requirement that limit the extent of spread and damage that dry rot fungus can cause.
Dry Rot Fungus, Serpula lacrymans, can be readily controlled with proper combination of environmental and building considerations coupled with proper use of wood and masonry preservatives.