I need to replace my kitchen ceiling (approx 2.7m x 2.5m), which currently has some pretty dodgy plasterboard. Are there any lightweight alternatives to plasterboard, e.g. mineral fibre panels, maybe even ones that aren't 8x4? I'm trying to avoid having to hire a lift to be able to get plasterboard up there. Actually, I guess my Q should be "are there any lightweight alternatives to plasterboard which are any good" - googling shows me that there are such products, but even if they are easier to fit I don't want to use them if they're pants. I'll be getting a plasterer to skim the ceiling, so I'm not bothered if manufacturers claims of just filling the feather-edge joins are optimistic.