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Should you replace moldy subfloor?

Should you replace moldy subfloor?

Even if the materials don’t look moldy, if they’ve been touching the moldy subfloor, we recommend playing it safe and replacing them. Moldy carpet and other flooring materials must be removed carefully because the process of pulling them up can spread mold spores.

What kills mold on plywood?

Mix 1 cup of borax in 1 gallon of water, or get an EPA-registered mold removal solution. You can spray this solution on the moldy plywood. You can also use a mop and spread this solution across the affected plywood. Repeat this step after 10 minutes, then leave to dry.

What causes mold on subfloor?

Subfloor mold usually develops due to an undetected moisture intrusion between the different layers of flooring, especially when the finish flooring is sheet vinyl, laminate flooring, or ceramic tile.

Is mold on plywood dangerous?

Plywood is often stored outdoors, and may encounter rain, humidity and other conditions that create mold spores. If mold gets onto plywood, there is no need to throw the board out. You can kill mold spores and remove them from the surface of the wood with a simple bleach solution.

Is mold under flooring dangerous?

When the mold spores drift inside your home, if the spores find a suitable, damp environment, they begin to grow. The result is more than distasteful – it can prove hazardous to your health. If it’s growing under your flooring, you need to fix the cause, kill and remove the mold, then replace the flooring.

How do I know if my subfloor has mold?

If you’re smelling a musty, pungent, earthy odor, then you might have mold. The easiest way to detect mold in sub-flooring is if you see discoloration, warping or distortion in areas of flooring. Plywood and OSB absorb moisture, so this can cause their layers to separate or warp.

How do you remove mold from a plywood subfloor?

Treat exposed molded subflooring with a mixture of 1 cup of borax and 1 gallon of water or an EPA-registered mold removal product. Spray the solution on the moldy plywood. You can also soak affected subflooring with a brush broom. Wait 10 minutes, scrub the area, and repeat the process two more times.

What do professionals use to kill mold?

A popular chemical for killing mold is Concrobium Mold Control, which can be bought at big-box hardware stores. It’s used by both pros and homeowners. We have used it and have found it to be effective. Hydrogen peroxide-based mold killers are also very effective.

Is vinegar or bleach better for killing mold?

Vinegar truly is better than bleach at killing mold. The EPA does not recommend using bleach to kill or remove mold, except in special circumstances. “Bleach only kills surface mold, not the membrane underneath,” according to ServiceMaster. “That means the mold will grow back.

What does mold look like on a subfloor?

How to get rid of mold on subfloor?

Work over top of the subfloor – excess solution will merely add to that engaging the mold on the subfloor. Apply a second, lighter coat of fresh borax water and scrub again. Vacuum over the subfloor with a HEPA vacuum, if possible. This will remove the bulk of the dead mold.

What’s the best way to remove mold from a concrete floor?

Mix a new solution, this time with one part bleach to four parts water. Scrub the area again, and use a wet/dry vac to keep most of the water away from the floor. Mop up with clean water and allow to dry. In the event there is still some remaining after all of this, don’t worry; there’s still a solution.

What should I do if I find mold on my basement floor?

If you discover there is mold on the subflooring, you will want to remove it carefully. There are a few mixtures that you can spray onto the mold to kill and remove it- such as measured doses of Borax and water. This can be an issue in both main areas and basements.

What can I use to get black mold out of my wood floor?

If it has penetrated the wood or is deeply engrained in the hardwood, you will want to use a scarping tool or heavy sandpaper to remove it. If the hardwood hasn’t been penetrated, you can use vinegar and water, soap and water, bleach and water or another household solution to kill it.