Plastering Bathroom Wall & Ceiling

[RussellS]

Hi, I am currently renovating our bathroom which has involved removing all the old plasterboard from the stud walls and the ceiling and replacing with 12.5mm moisture resistant plasterboard. Also there is one solid wall that is not particularly flat which I would like to plaster to make it nice and flat ready for tiling.

There are two things I would like some advice on please. Firstly, the ceiling will require plastering which I will do myself but I'm unsure of the preperation due to it being a bathroom. Normally I would PVA the plasterboard to seal it and then apply another coat and then plaster while the PVA is still damp. However, would this be the best thing to do in a bathroom where there may be steam etc.

Secondly, the solid wall will require plastering to level it up. It's not a large wall (roughly 1m wide) and I was going to put a baton at each side and then use bonding coat plaster and a straight edge between the two batons to get it straight and level. My question is would this itself be sufficient to tile onto or would I still need to put a skim of finishing plaster on top as well for tiling.


Thanks for any advice

 

[Alastairreid]

New plasterboard can be skimmed without any prep.

The bonding will still need skimmed before tiling.

 

[RussellS]

Thanks for the reply.

So the plasterboard doesn't need sealing or anything, just skim straight onto the board. I didn't know that.

Thanks very much.

 

[Alastairreid]

Apart from taping the joints.

Bonding plaster is not suitable to tile directly onto as it has too much suction and is not stable enough.

Mrpb according to some should be prepped with blue grit http://www.everbuild.co.uk/febondbluegrit or similar but i've never had any problems.

 

[RussellS]

Apart from taping the joints.

Yeah, I took that for granted.


Thanks again for your advice

 

[stevethespreader]

Mrpb according to some should be prepped with blue grit http://www.everbuild.co.uk/febondbluegrit or similar but i've never had any problems.

al I know someone who skimmed a Mr ceiling with no prep the whole lid came down, Mr plasterboard is Mr so the skim don't stick to it as it do normal plasterboard