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Prevent Attic Condensation with Fiberglass Insulation

  • Transcript

    LESLIE: Eddie in Texas, you’ve got The Money Pit. How can we help you?

    EDDIE: I’m calling from East Texas where we have a lot of different weather extremes.

    TOM: OK.

    EDDIE: As you may know, it’s pretty humid here in the summertime and we get some temperatures that are up to 100 degrees plus. And in the wintertime we actually get some weather that’s 15, 20 degrees. So I have a (inaudible at 0:13:10.9) house and I want to insulate underneath it and I have some panels that I wondered if I could put under there. And I guess my concern is whether it will cause me any problems with condensation.

    TOM: Alright, what kind of panels are we talking about here, Eddie?

    EDDIE: Not Styrofoam but like a foam-type insulation.

    TOM: OK.

    EDDIE: And they’re metal-clad on each side.

    TOM: I don’t think that that’s going to give you a very good r value. What I would rather see you do is just use maybe a 12-inch batt of fiberglass insulation.

    EDDIE: Right.

    TOM: You have traditional floor joists down there?

    EDDIE: Yes.

    TOM: Then you want to put them up, unfaced fiberglass, in between the floor joists – you can buy those either as 16-inch batts or 24-inch batts, support it with insulation hangers and that’ll make that floor nice and toasty.

    EDDIE: OK, that’s great.

    TOM: Yeah, that would be a much better way to go.

    EDDIE: Right. Alright, well thank you very much.

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

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