Return to the Home Repair Forum | Post a Follow-Up

 o
Old Insulation in Crawlspace

Posted by geesh (My Page) on
Thu, Jun 30, 11 at 17:31

40 yr old insulation in 4' high dirt crawlspace is dark & in poor condition. Would having a contractor REMOVE all the old overhead insulation (between crawlspace & main floor) remove most of the mildew smell from the crawlspace-seeping into the main living space ?
Yes, I have been battling this smell for some time.
Thanks for your replies.


Follow-Up Postings:

 o
RE: Old Insulation in Crawlspace

Where are you located and what kind of climate do you have there?


 o
RE: Old Insulation in Crawlspace

In any case get rid of the old insulation and then seal the dirt by covering with 6 mil plastic. Concrete over that if feasible. Use a dehumidifier to reduce the moisture in the crawl space.

I have a dehumidifier running now in a Michigan basement and the musty smell is almost gone. The dial read 90% to start with and is down to 65%. It took a week.


 o
follow up reply. re: old insulation in crawlspace

Home is on Table Rock Lake Missouri/Arkansas border. HUMID but not severe cold..


 o
RE: Old Insulation in Crawlspace

Bat insulation under the floor in air conditioned homes in humid environments is generally a bad idea. You will be lucky if you only have mold and not rotten floors. Air leaks past the bats and water condenses on the subfloor and on the joists.

Fix the floor. If the crawlspace is not sealed, it might make sense to seal it from the outside. Check with a local energy rater or building expert. (First, check into it yourself. Sometimes it can be difficult to find people with up to date knowledge. http://www.buildingscience.com is a good resource.) There might be more moisture available from the air than from the ground. Alternatively, use open-cell spray foam under the floor to replace the glass.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Home Repair Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here