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.
Will mold just wipe off roof sheathing.
Mix a solution of one part bleach to three parts water in a spray bottle and thoroughly saturate the moldy areas of the wall.
Mold on attic sheathing.
Prevent future mold growth.
Scrub mold off hard surfaces such as window sills and tile with detergent and water and dry completely with a rag.
Best procedures for cleaning mold contaminated wood.
For more porous surfaces like drywall just use a rag so you don t damage the surface with more abrasive cleaners.
In the vast majority of cases the mold growth is caused by condensation.
Assuming the area of mold growth is fairly small the mold growth can be scrubbed off with a detergent water solution.
Wipe the area off and make sure it dries thoroughly.
To prevent future mold growth remove the source of moisture causing it.
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.
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.
Mold growth on attic roof sheathing is a common issue in cool climates such as the pacific northwest.
Remove mold stains from walls.
After you apply the borax solution scrub the area with a rag or a wire brush until the mold is gone.
In time the mold will simply grow on top of the new dust that settles on top of the cleaner coating.
Then use a long handled brush to scour the surface of the shingles and loosen stuck on mold while it s dry and brittle.
If the surface is too porous to remove mold completely such as in ceiling tiles you may have to replace it.
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.
Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified.