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Condensation on Bathroom Ceiling

  • Transcript

    LESLIE: Adam in Iowa is dealing with a wet bathroom. Tell us what’s going on in there.

    ADAM: Well, I have condensation on my ceiling.

    LESLIE: OK.

    ADAM: We had our roof redone, oh, about three years ago and now it seems like when it gets cold out, we get condensation on our ceiling.

    LESLIE: Do you have any sort of venting in your bathroom? Because it sounds like your attic is cool and you’re in your shower and the bathroom gets super-hot and then there’s no movement of air in that bath and that’s what’s causing that temperature differentiation.

    TOM: So what happens is the warm, moist air strikes the underside of the chillier bathroom ceiling and condenses.

    ADAM: OK.

    TOM: And so, if we were to warm up the bathroom ceiling by making sure it’s insulated above, couple that with proper bathroom ventilation, then this problem will totally go away.

    ADAM: Right. OK. So the vent we have for the shower is probably not significant enough for the bathroom itself?

    LESLIE: And are you certain that the vent that you have in the bathroom is actually vented outside and not just venting into your attic?

    ADAM: I believe it is. There is – I don’t know. I’d have to look for sure but I think they did put it but it’s not a very big vent itself.

    LESLIE: OK. So you have some air movement but just not enough. It could be that you’re just not getting enough of that moist air out or you’re not using it in the proper way.

    Traditionally, with a bathroom vent fan, you want, obviously, to have the vent fan on while you’re bathing and then you want to continue to run it for about 10, 15 minutes once you’re out of the shower because that’s when the condensation really occurs.

    Now, if it’s time for a new one – maybe your model’s just not efficient enough or not moving enough of that moist air out – a great company to check out is Broan-NuTone. And if you go to their website, Broan.com – B-r-o-a-n.com – you’ll find a ton of different models available with lights, without lights, ones that actually look like vent fans, one that looks like a ceiling high-hat that really conceals a bath vent fan.

    And what’s great is that a majority of their models are Energy Star-rated, because they’re made so efficiently to be silent and to move a tremendous amount of moisture out of the bath. That’s how they meet a lot of the Energy Star ratings. They’re affordable. It’s really worth looking into because if you’re dealing with this problem over and over again, eventually you’re going to get mold and mildew growth on your ceiling. You’re going to have to repaint, repair. There’s a lot that this is going to cause if you don’t nip it in the bud right now.

    ADAM: OK. And this is something I could install myself?

    TOM: Yeah, absolutely. If you’re a handy guy or you’re a DIYer, you definitely could put in a new fan yourself. It’s not terribly a difficult project to do; pretty much basic carpentry and basic electrical work.

    ADAM: OK, guys. Appreciate it.

    TOM: You’re welcome, Adam. Thanks so much for calling us at 888-MONEY-PIT.

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