Removing Mold From Roof Plywood

I have pine planking going across the rafters and plywood on top of the planking.

Removing mold from roof plywood.

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. Use a soft brush and work until signs of the mold disappear. Treat the molded plywood treat exposed molded subflooring with a mixture of 1 cup of borax and 1 gallon of water or an epa registered mold removal product.

Combine 1 2 cup chlorine bleach with. 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. Before mold was on everything on the north side. Slowly wipe the osb surface with a washcloth soaked in warm soapy water rinsing it frequently.

Scrub the surface mold stains from walls and wood trim with a mixture of one quart water and 1 2 cup bleach mold cleaner to kill the mold. Spray the solution on the moldy plywood. Dip the brush into the bleach solution and scrub over the moldy area of the wood. Generally tearing off a roof and roof sheathing and perhaps roof framing to remove mold would not be sensible nor cost justified.

If the mold is not very old ordinary detergent and water may remove the mold. If mold needs to be removed from a roof deck through which roofing nails penetrate hand wiping is not feasible. Power cleaning using spray equipment such as media blasting using baking soda or dry ice is very effective for these surfaces. Mix up your cleaning solution.

Removing mold on plywood step 1. The first two are effective though often cost prohibitive. Now i just get condensation on the plywood in the spaces between the pine planking. You can also soak affected subflooring with a brush broom.

Removing mold growth from roof sheathing. To get rid of mold and other types of growth for good it s best to use a powerful chemical agent like chlorine bleach. Hose down the entire plywood. Wipe off but do not rinse these surfaces.

Put on the gloves and safety goggles. After scrubbing the surfaces allow the bleach solution to continue to penetrate the surfaces and dry. Mold remediation contractors use a variety of techniques to address attic mold growth including dry ice blasting hand sanding and encapsulation. Step 4 removing old mold.

Wear old clothes that you do not mind getting bleached as you work.