Block wall / Discussions

Does 2" EPS foam board on basement walls cause concrete freezing issues?

...walls and drywall are not sitting on concrete but they are raised up on small EPS blocks.  Since you have no sump pump, any flooding will saturate your framing. However, if the walls and drywall raised up on foam blocks it gives you a little wiggle room if for any reason there is ever an inch of so of water in the base...

Posted by Gar Wia June 16, 2025 Basements improvements 1 response

Can you insulate a concrete block basement walls with only rockwool?

...wall, along with you saying you weren’t going to seal the wall. If you have a waterproof membrane against the block wall then there is no reason you can’t put the stud wall right against it rather than leaving an airspace. The point being, if you leave an airspace and the wall is not sealed, sounds to me there is a cha...

Posted by Aarne Valikangas Jan. 1, 2021 Basements improvements 1 response

How would I rectifiy problem of foundation wall cracks with finished basement?

...wall on interior basement wall and eventually refinish the interior walls of the basement in a different manner to rectifiy this problem longterm? Insulating a cinder block (or CMU) foundation wall from the inside in cold climates is risky as it can cause cracking. A cinder block foundation wall is not as strong as pou...

Posted by Terry P July 22, 2020 Basements improvements 3 responses