Ok so it's ok not to use the poly if I'm putting foam board on the concrete? And yes I will be taping all the seams in the foam board. I will also be insulating the floor joists
I'm about to insulate my bare concrete walls. I've done research on how to do this and found a million ways. This is how I wanted to do it.
1inch foam board insulation clued to concrete wall. Then build 2x4 wall against foam and fill with roxul insulation. Then drywall and paint
Is this...
