I just moved into a small 1950s home. The previous owner had purchased tons of unfaced fiberglass batts and they are still in their bags, piled up in the attic. So I'm going to clean up the little bit of loose fill insulation that was there, and lay the new stuff on a clean slate
What should I do so that this unfaced insulation will have the same effect as faced? A plastic vapor barrier? I'm getting mixed messages on those...