Wear old clothes that you do not mind getting bleached as you work.
Removing mold from roof plywood.
Mold remediation contractors use a variety of techniques to address attic mold growth including dry ice blasting hand sanding and encapsulation.
You can whip up your own basic cleaner by combining one quart of bleach one gallon of water and cup 60ml of trisodium phosphate tsp.
This spring i plan to gut remodel the bathroom which will give me access to 60 of the north side of the attic.
You can also soak affected subflooring with a brush broom.
Allow the bleach solution to.
Hose down the entire plywood.
Now i just get condensation on the plywood in the spaces between the pine planking.
The first two are effective though often cost prohibitive.
Removing mold growth from roof sheathing.
If mold needs to be removed from a roof deck through which roofing nails penetrate hand wiping is not feasible.
Before mold was on everything on the north side.
Use a soft brush and work until signs of the mold disappear.
Removing mold on plywood step 1.
Mix up your cleaning solution.
Slowly wipe the osb surface with a washcloth soaked in warm soapy water rinsing it frequently.
After scrubbing the surfaces allow the bleach solution to continue to penetrate the surfaces and dry.
Put on the gloves and safety goggles.
Dip the brush into the bleach solution and scrub over the moldy area of the wood.
Spray the solution on the moldy plywood.
See our media blasting article at mold cleanup media blasting live link is given just below.
Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified.
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 smoothness.
Because wood is porous it may be difficult to remove the mold stains from sheathing but you can kill the mold by cleaning the sheathing with bleach and water.
I have pine planking going across the rafters and plywood on top of the planking.
To get rid of mold and other types of growth for good it s best to use a powerful chemical agent like chlorine bleach.
If the mold is not very old ordinary detergent and water may remove the mold.
Wipe off but do not rinse these surfaces.
Power cleaning using spray equipment such as media blasting using baking soda or dry ice is very effective for these surfaces.
Combine 1 2 cup chlorine bleach with.