Hi, complete newbie at DIY. I have Aztec ceilings and need them plasterboarded before I get it plastered. Going to do this myself, may be easier with your help though. Can you tell me what type and thickness of plaster board I need? Thanks
12.7mm or 1/2inch square edge plasterboard, and if you are overboarding rather than ripping down bang a hole through the old ceiling first to gauge the thickness but you generally want 25mm/an inch of the black drywall screw penetrating into the joists. So if you've already got a layer of plasterboard up there you'll want 50mm black phosphate coarse thread drywall screws. If you are actually boarding the ceilings yourself I would recommend you hire a board lifter, or box clever and get one one else to do it. Look up hiring a collated screwgun too.
If the artex is sound it is possible to skim the ceiling as is without over boarding. Most of our ceilings have been done like that with no problems.