Wet Rot decay is more localised and generally less destructive than dry rot, requiring less replacement of infected timber. It is, however essential to have correct identification by a qualified surveyor to avoid unnecessary expense. Wet rot is caused by a fungus called Coniophora puteana or ‘cellar rot’. It’s only attracted to very damp timber (or plaster) and this is the reason it stays localised. Ward Damp-Proofing will locate the source of the water, replace the affected timber and treat the area to protect it in the future.