If there is a leak in the roof plumbing or windows the mold will reappear if the water is.
Will mold just wipe off roof sheathing.
To clean mold off a roof start by putting on rubber gloves a breathing mask and goggles to protect yourself from the harsh cleaning chemicals.
Open a window and or keep a fan.
Then use a long handled brush to scour the surface of the shingles and loosen stuck on mold while it s dry and brittle.
In time the mold will simply grow on top of the new dust that settles on top of the cleaner coating.
After you apply the borax solution scrub the area with a rag or a wire brush until the mold is gone.
Do not apply the solution to a porous material such as drywall.
This occurs when the temperature of the sheathing drops below the dew point creating a thin layer of moisture on the substrate.
Assuming the area of mold growth is fairly small the mold growth can be scrubbed off with a detergent water solution.
No chemical can prevent mold growth if elevated moisture is present.
Best procedures for cleaning mold contaminated wood.
Mix a solution of one part bleach to three parts water in a spray bottle and thoroughly saturate the moldy areas of the wall.
Scrub mold off hard surfaces such as window sills and tile with detergent and water and dry completely with a rag.
These types of surfaces absorb water easily which will only exacerbate the mold problem by keeping the area moist.
In the vast majority of cases the mold growth is caused by condensation.
Remove mold stains from walls.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
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.
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.
Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified.
Mold on attic sheathing.
To prevent future mold growth remove the source of moisture causing it.
Prevent future mold growth.