Dry Rot is certainly one of the most serious problems that can occur in a property. It is triggered off initially by a source of moisture - damaged roofing, broken guttering or downpipes, faulty plumbing, damage to WC pans and cisterns, rising dampness in walls at ground level together with a lack of subfloor ventilation.
For the fungus to establish itself from millions of minute spores carried in the air, the timber must have a moisture content of approximately 21% or above. In its early stages of development the growth is white and fluffy, similar in appearance to cotton wool. Dry Rot strands (Hyphae) grow on the surface of the timber and masonry and in advanced state develop into sporophors (fruiting bodies) which will be coloured a distinctive rust brown, violet and yellow which in turn produce millions of rust coloured spores for future propagation. These areas are when the fungus is under threat - when it reaches light or ventilation.