What Does best of disco Mean?
I put 2" foil confronted polyisocyanurate (Dow Tuff-R) on the interior walls of my basement, by simply attaching it with three" Tap-it concrete anchors and taping the seams with foil tape, you will require a hammer drill to help make the holes from the concrete. I also pieced the polyiso into every rim-joist bay and sealed the perimeters and seams