Basement vapor barrier / Discussions

...basement renovations we try to always point out that you should never put a vapor barrier on an interior basement wall unless you are trying to grow mushrooms inside the wall. Read here about why basements are moldy and how to prevent mold when finishing a basement. 

...vapor barrier on the interior of walls that traps moisture and leads to mold and rot. You simply should not ever put wood and insulation against a below grade foundation wall and seal it up with a vapor barrier, that is nothing but an invitation for mold to return. So read this page as well and be sure to pick a builde...

...barrier back up the condensation formed again. That means the wall is wet, and the vapour barrier is preventing it from drying. Despite it being allowed (and usually insisted upon), putting vapour barriers on basement walls does nothing good, but it does a lot of harm. You can read more here –  Why are Basements Moldy?...

...basements are moldy and how to insulate basements properly That page will explain, but the short story is you should never have a poly vapor barrier sealing insulation and framed walls against concrete. Concrete is wet, so are unprotected cinderblock walls, and the poly prevents the wall from drying. And I would recomm...

...basement. I've removed everything back to the foundation wall in that one area where I will be building. The basement was finished with tar paper on foundation wall, 2 by 2 framing with fiberglass insulation, vapour barrier and drywall. Everything I've researched including articles on this site suggest this is the wron...

...basement to our home has no insulation with a cinderblock wall that they have either applied white paint or drylok to, can't tell though. The basement is also a walkout so three sides are exposed to air while the front of the house is underground. My question is should I apply 2 inch foam board to the inside of the wal...

...basement ourselves (zone 5, Toronto) and on a budget after gutting the entire finished basement due to extensive moisture penetration and mold issues. The foundation/walls are concrete block and we have 2 sides done with interior plastic membrane to french drain and sump pump, one side exterior waterproofing, and one s...

...Basements Moldy? How to Fix & Prevent Mold in Homes The smart barrier sounds fine but isn’t even really necessary since you are protecting the stud wall and insulation from the block wall with a vapour barrier. That’s the most important step, to keep the moisture from entering the house in the first place. That’s t...

...basements are moldy and how to prevent mold during basement renovations If you have cut open the poly vapor barrier on the basement walls then that is letting moisture escape, that’s a good thing. Do you have a dehumidifier? I would strongly suggest you get one if not. And rather than going back and repairing the vapor...

I am redoing a basement wall that has a lot of moisture and has rotted the studs I see you mentioned to do drywall, studs with mineral wood then 2" of rigid insulation attached to block foundation would it be ok if I put Delta MS against the block foundation then apply the rigind insulation Thanks for your help. Puttin...