Basement moisture / Discussions

How to deal with condensation in basement?

...basement is finished? Finishing a basement in a cold climate like Minnesota requires careful management of the "dew point" to prevent hidden mold (see here to better understand the dew point in homes.) Since you plan to keep the existing vapor barrier against the concrete, the biggest risk is moisture getting trapped b...

Posted by Shane Hu Aug. 7, 2025 Basements improvements 1 response

How do you fix moisture problems in basement?

...moisture may drain down the interior or the wall, so ideally you would have a trench at the bottom, and even bring the membrane under the sill plate of the stud wall if you can to prevent moisture damage to the framing members. Or, check out something like this vented sill plate to reduce moisture damage on basement wa...

Posted by John rodrigues Nov. 27, 2020 Basements improvements 3 responses

Will spray foam on basement walls prevent condensation?

...basement walls does nothing good, but it does a lot of harm. You can read more here –  Why are Basements Moldy? How to Fix & Prevent Mold in Homes  The short story is that concrete is wet and dirt is wet, so if you put plastic against it, condensation will form. Installing polyethylene vapour barriers is the worst ...

Posted by Michael Scott April 12, 2021 Basements improvements 3 responses