I'd be interested in people's thoughts on bathroom ceilings. I currently have a standard, presumably plasterboard, ceiling with artex-type stuff on it. It's a bit mouldy in places, and has holes for extractor fan and central light in places that I probably won't want them in the new layout. For these reasons I'm thinking of replacing, or more likely covering over it.
Unfortunately it's probably not feasible to get at it from above - it's in a narrow off-shoot of the house and the roof-space there is low and filled with truss parts. However I think I could probably pull through lighting cables and so on with the help of a pole. Part of the reason for the new ceiling is so that I can cut temporary access holes in the old one to do things like getting at the extractor's connection to the vertical vent in the roof.
Is it feasible to simply fix a new plasterboard ceiling onto an existing one? I don't want a suspended ceiling as such because there is a glass panel over the door that ends only an inch and a half or so below the existing ceiling. Are there other approaches to constructing a moisture-resistant bathroom ceiling that don't involve any plastering? I have heard of PVC cladding, which has some practical appeal, but I haven't seen it first-hand and I'm concerned it might look a bit naff in an otherwise high-spec new bathroom.
I haven't really looked at lighting much yet, but what I have seen doesn't really appeal. The default position is probably low-voltage inset halogens, but only because I don't know of anything else. Any suggestions?