Crawl Space Moisture

Reply

  #1  
Old 11-12-12, 07:03 PM
Member
Thread Starter
Join Date: Nov 2012
Location: Canada
Posts: 1
Upvotes: 0
Received 0 Votes on 0 Posts
Crawl Space Moisture

We are adding an addition onto our home in Saskatchewan and we decided to do a crawl space instead of a full basement. We have very sandy soil and placed poly down and covered it back over with sand before the floor was put on. Our problem was it rained quite a bit after the poly was placed down and it did not dry out enough before winter came. Now we have frost on our concrete (on the inside)and on the underside of our sub-floor as well as mold growing on the underside of the sub-floor. We do have heaters and a fan down there, we also ran a dehumidifier from the rental shop for a month. My question is can we just lay another layer of poly down to stop the moisture problem?
 
Sponsored Links
  #2  
Old 11-16-12, 08:58 PM
Temporarily Suspended
Join Date: Jul 2008
Location: NY
Posts: 10,986
Upvotes: 0
Received 0 Votes on 0 Posts
That sounds like it would just trap the moisture. You may have to start over.
 
  #3  
Old 11-17-12, 12:15 AM
BridgeMan45's Avatar
Member
Join Date: Oct 2011
Location: USA
Posts: 3,196
Upvotes: 0
Received 0 Votes on 0 Posts
You might want to consider getting some ventilation going in the crawl space, now that cold temperatures will be the norm for a while, and cold air is typically quite dry.
 
  #4  
Old 11-17-12, 04:21 AM
Halton's Avatar
Member
Join Date: Nov 2012
Location: Canada
Posts: 337
Upvotes: 0
Received 0 Votes on 0 Posts
.




Ideally.....the moisture should have been vigorously dealt with prior to freeze up.

Passive ventilation won't be enough at this point.....especially since it is a cold zone.

Can you install an exhaust fan at one end with an intake at the other?

It doesn't need to be huge CFM.....just a continual draw of fresh dry air.

A fan in the room just circulating the air does nothing.....you need to exhaust the moisture.




.
 
Reply

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description:
Your question will be posted in: