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Black Spots in Bathroom: Is it Mold?

  • Transcript

    LESLIE: Heather in Texas is dealing with a mold situation. Tell us what’s going on.

    HEATHER: Well, I have black spots in my restroom and I’m not sure if that’s mold. And I would like to know: how can he fix it?

    TOM: Without seeing it, I can’t tell you but if they’re black spots, it probably is mold. And where are these spots? Is it on the wall, shower curtain, tile? Where? Ceiling?

    HEATHER: In the wall.

    TOM: On the wall? Do you have wallpaper on the wall?

    HEATHER: No.

    TOM: What you might want to do is mix up a bleach-and-water solution, about 10- to 15-percent bleach and the rest water. Spray it on those spots, let it sit for a bit of time and then wipe it down with fresh water. So if there is mold there, that will kill it.

    The reason we usually get mold in bathrooms is because they’re wet and damp all the time. A couple of things that you can do there is – do you have a bath exhaust fan in this room?

    HEATHER: No.

    TOM: Well, you should have one. And this is one of the reasons you should have one, because it will draw air out of that room when it gets damp, especially if you hook it up to a humidistat so it’s only running when there’s moisture in the room. If you don’t have that, then the only thing that you could do is just get into the practice of wiping down walls or using a squeegee to wipe most of the water off the bath, the shower walls, that sort of thing, every single time and leaving the door open. But if you don’t have a bath exhaust fan, you’re always going to be fighting this.

    When you do repaint next time, make sure you use a paint that has a mildicide built into it because that can also further reduce the chance of developing mold. OK, Heather?

    HEATHER: OK. Thank you.

    TOM: Good luck with that project. Thanks so much for calling us at 888-MONEY-PIT.

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