How do we install drywall on a curved ceiling that is within 4 feet high from the loft floor?
1/4" drywall will readily bend into a radius and is available at the big box stores. 2 layers of that with glue between the framing and the 2nd layer. A 2X4, as long as the sheet with a few short 2X to hold it while you screw it in place. It must be tight to the framing before you run screws into it to hold it.