Picked up two rolls of JM 1" Insul-Shiled two years ago, then had to put theater construction on hold. I'm finally getting around to do the install and I'm not sure which side should face the wall. One side has is coated (almost like it was painted) with a slight textured pattern. The other side is the insulation fibers. When it's installed which side should face out into the room (to later be covered by fabric)?