very damp crawl space....

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by rtstephn, Jun 14, 2008.

  1. rtstephn

    rtstephn New Member

    Messages:
    18
    I have a home that has a very damp crawl space, and am wondering what, if anything, I can do about it. It is so damp that my HVAC ducts often have small water driplets falling off them onto the vapor barrior below. I have confirmed that I have no plumbing leaks. The crawl space stays very cool, even when it's 90+ degrees outside. My guess is that it is condensation, but it seems like alot of it. Sometimes there are small puddles on the black pastic vapor barrior. Ihave the correct number of vents (according to local code), and they are all open. Also, I can tell that the cinder blocks used in the foundation are damp 3 to 4 inches up from the ground. The rest of the highth is dry ont he foundation walls.

    ANy thoughts on how I can fight this.
  2. patrick88

    patrick88 Plumber

    Messages:
    836
    Location:
    Webster Ma.
    Dehumidifier or two. Would help.
  3. Mikey

    Mikey Aspiring Old Fart, EE, computer & networking geek

    Messages:
    2,726
    Location:
    Central Florida
    Ventilate the crawl space and insulate the AC ductwork better. Where are you located?
  4. rtstephn

    rtstephn New Member

    Messages:
    18
    I'm in middle Tennessee. I used R6 (with some R4.2) flex insulated duct, and I really havn't used the AC much this Spring.
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