Interior basement insulation / Discussions

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

...interior and and lack sufficient moisture protection, so you are not alone. If your foundation was built a hundred years ago I may be concerned about the concrete mix as there was no oversight in those days, but a 1976 basement foundation is likely solid and should not be negatively impacted by adding interior insulati...

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

What is the best insulation for concrete block foundation wall and basement stud wall system?

...basement walls. She wants to spray foam the rin joists and  apply 2" of foam on the walls with the stud wall being installed 1" from the block wall. However I  am concerned that concrete block needs to breath, based on what I have read on this site, and that the temperature of the block will now be colder with the insu...

Posted by Don Fraser Dec. 8, 2021 Foundation and basement improvements 2 responses

Can you Insulate a cinder block basement foundation with Rockwool?

...interior using Rockwool, here are the factors we would prioritize and how we would do it. First, the three main rules of durable basement construction are – water management, insulation, and airtightness. Our first suggested assembly for interior basement insulation would be a vapor barrier membrane directly against th...

Posted by Victor B June 19, 2019 Basements improvements 6 responses