This causes condensation to form on the cold surfaces in the attic especially roof rafters sheathing and trusses.
Mold in roof rafters.
Mold growth provided it is not just cosmetic mold which can simply be left alone can be cleaned from wood surfaces by blasting scrubbing or even simple surface wiping depending on the surface accessibility and.
Check for areas of dark discoloration staining of wood e g.
Roof leaks will often lead to a small localized area of attic mold near where the leak is occurring.
Rafters sheathing joists attic side of fascia boards etc.
Mold infested drywall and insulation must be.
Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified.
This article offers advice on cleaning mold found on surfaces of un finished wooden building materials such as framing lumber rafters floor joists wall studs and building roof wall and floor sheathing such as plywood tongue and groove pine boards and other structural wood surfaces in buildings.
Best procedures for cleaning mold contaminated wood.
Bleach is corrosive and nasty to use and it kills only surface mold.
Attic mold left unchecked can grow and lead to structural deterioration of attic sheathing and roof structural elements.
Attic mold is often caused by warm moist air from the house leaking into the attic space.
There s an underlying moisture issue that needs to be resolved because mold requires moisture to grow and spread.