The only sure way to find out is to remove a section of the wallboard and check the wood behind.
Treating mold on wood floor.
Spray your floor with your cleaner and leave it to soak for 10 minutes.
Don protective gear an air mask is a must.
Use bleach on raw wood.
If you detect mold on plywood subfloor then you should really hire a professional to get the job cleared up.
Water damage doesn t have to be severe for mold to grow.
Step 4 use a power washer.
Mold grows on organic materials in environments with high humidity or trapped moisture.
It s important to wear gloves and safety goggles when cleaning mold since it can be toxic if ingested.
Not only are you dealing with treating the mold but sometimes it s difficult even to see signs of mold under hardwood floors.
How much water is too much.
If the mold has been on the floor for a long time it will have penetrated the wood deeply.
Unfortunately for your hardwood floors that means they are vulnerable to damage and mold growth underneath them when there has been water or flood damage.
For starters borax is a natural cleaning product and although it is toxic if you swallow it borax does not emit chemicals or dangerous fumes like some other mold killers.
Mold removal with borax there are many advantages to using borax to kill mold.
Use soap and water on painted or stained wood.
Use a soft brush and work until signs of the mold disappear.
External mold can do significant damage to exterior surfaces over time eating away at wood stucco and other materials.
Although you can clean up mold yourself it s not a easy task to kill mold on a wood subfloor.
You will need to use a power washer on the floor to remove the mold.
If your wood floor is stained from mold you ll need a cleaner designed for urethane finishes or a chlorine bleach solution with 10 parts water to 1 part bleach.
Vacuum the area to collect loose spores.
If you find mold growing the wood floor plates behind the wall are at risk of wood rot.
Spray a light dusting of water on mold patches to help weigh down the mold and prevent as much disruption as possible.
After scrubbing the surfaces allow the bleach solution to continue to penetrate the surfaces and dry.
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.
At this stage however you ll need to stain and refinish the wood anyway because the mold is so deep in the wood.
How to remove mold from wood.