I'm replacing some drywall in the corner of my basement - just one sheet on each wall. The block wall on one side (Northeast) is all below grade. The wall on the other side (Northwest) is half below grade. The bottom plate/block connection is not well sealed, so I was going to do that. The builder had a put a piece of poly up over the studs and fiberglass batts on the above-grade portion. the outer sheathing is right behind them. Should I replace this piece of poly or should I leave the fiberglass and studs exposed to increase drying to the inside? I wasn't sure if the warm air in the basement would move more easily through and condense on the sheathing.