i have a 70 yr old house pier and beam with some terrible cracked popcorn ceiling in the living/dining/kitchen rooms. My house has moderate foundation issues, though it has more or less settled, though it does its seasonal shifting. Anyways, the ceiling has cracks up to 10 ft long at every corner. Up in the attic i have some old nasty insulation, though there's not alot of it. It could probably be covered with some good insulation...at least the stuff that i can't bag myself. I want to replace the ceiling, but the thought of clearing out the half the house and having the ceiling and insulation crash down all over the place doesn't appeal to me. I'd rather cap the ceiling if possible with sheetrock. Only thing is, i know not all the ceiling is level, so i would have to have someone who had a clue about how to do this, right? Is this even a method used by people, or does it dd too much weight and risk crashing down after a while? Thanks for any help.