Wet rot is a fungal infestation which thrives in damp conditions. Any unprotected timber in your property from your roof to the ground floor which becomes damp is at risk of fungal attack.
There are many types of wet rot fungi and the infestation should be treated as soon as possible as it can structurally deteriorate timbers in your property or home.
Wet rot can often lead to major structural damage if it is left to grow unchecked. Fortunately, wet rot does not spread through masonry and the growth of wet rot will cease when the moisture is removed.
Any damp source can lead to a wet rot attack including damp from rising damp, leaking roofs, gutters, and problems with defective masonry pointing or render can all create the right damp conditions in your property to germinate the wet rot fungi. Wet rot will stay in the vicinity of the damp source.