Our main space is over the garage. To get over the house area, is a very very tight squeeze with very little to stand on. The past two days, we had a new AC installed . When the guy inspected our ducts, he told us the chute between the roof skylight and ceiling in the hall bath had no insulation and there were gaps between the boards. I figured...FIRST, I'll go up there and seal the gaps with foam and see how difficult it is to get back there. Wellllll......4-5 hours later, my hip still hurts from cramping after I contorted in a way I never have before, trying to move without stepping through the ceiling and carrying a Mag Lite and foam can. Being 6'5" I also have 2-3 punctures in my scalp from roof nails. OF COURSE....I get halfway done with the foaming and the line clogged. After several choice words, I said EFF IT!!