basement concete condensation

Question Icon
Posted by: from Toronto
3/22/2017 at 8:53:19 PM

Hello Experts,

I was checking the insulation in my basement for the 1 year Tarion, and in the area where there is a floor crack, I noticed small amount of condensation on the plastic bag. After cutting trough the bag, i noticed some condensation at the base of the floor and the wall, I put a wired cam behind the stud of the base and I found that the concrete also has some condensation.

Is this a common issue? What should I do?

I added a few pics.

basement concete condensation
User Icon
Date/Time3/23/2017 at 3:48:00 PM

Providing there is not too much condensation, the situation is normal and the vapor barrier is doing its job.

Suggest you monitor the situation so you know there is not a foundation wall leak.



User Icon
Jullian in Toronto
Date/Time3/23/2017 at 8:11:20 PM

Thank you for the response Andrew. I will keep an eye on it.

User Icon
Date/Time3/24/2017 at 8:49:36 AM

A foundation crack can be caused by ground movement due to poor soil compaction before concrete pouring but all depends on the size and depth of said crack.

The condensation can be caused by the weeping pipe and waterproofing failure, moisture equal mildew.

Get a local foundation expert to inspect and report to your builder.

Good luck.


Search the TrustedPros directory and discover the best contractors in your area.

Find your home service pro
Great renovations start with a great contractor.

Since 2004, TrustedPros has been helping homeowners find the right contractor for their home improvements and repairs.

Post Your Project

Within hours you'll be comparing offers from top-rated professionals. It's free to post and you're under no obligation to hire.

Trustedpros Inc. does not warrant the accuracy, completeness, safety, legality or usefulness of any Content, or Whether Content is Current and up-to-date, and TrustedPros Inc. Shall have no liability whatsoever with respect to your use or reliance upon any content or for content being removed or otherwise ceasing to be available. Please refer to the terms and conditions of use of this websites for more details.

Get quotes from top-rated contractors