bathroom plasterboard.

[boldydave]

hello all.just wanted some advice.i`ve ripped all the tiles off in my mums bathroom and 1 wall(the exterior wall) is now bare brick as all the plaster came off.the other 3 walls were plasterboard which all came off with the tiles.my plan is aquapanel screwed to the studs around the shower area and plasterboard dot and dabbed onto the brick wall and to do the window recess.how do i prep the bare brick and can i use normal 12mm plasterboard?also are aquapanel fixings needed or can i just use normal drywall screws recessed.does aquapanel need to be tanked.thanks in advance. dave.

[whitebeam]

With the plasterboard the only prep would be to damp the brickwork where the dabs of dry wall adhesive will be placed then set the boards on the dabs, I would tank the plasterboard

[doug boardley]

drywall screws (imo) are not strong enough for cement boards.

[boldydave]

tank around the bath or the whole room?

[boldydave]

so i don`t need moisture resistant plasterboard?

[whitebeam]

I would tank around the shower area

[doug boardley]

tank around the bath or the whole room?

Just round the wet areas mate, and no need for moisture resistant pb.

[boldydave]

the house is very old and has solid walls with no cavity.is it still ok to dot and dab onto it.i was worried about any moisture coming through the brick and getting at the plasterboard from behind.

[whitebeam]

How thick are your walls

[boldydave]

the house is a solidly built cottage.i`ll find out on thursday but the window recess is a good 10 inches

[whitebeam]

Was the old plaster a lime mortor that came off

[Scott]

You could use a vapour shield board, this has the foil backing to it to prevent condensation from either direction. You could also add some insulation at this stage if you wanted. Im starting one tomorrow thats been studded out and insulated as its solid 9" walls

[boldydave]

i dont know if it was lime mortar.it wasn`t plaster,it was a grey colour and very soft.it fell off very easily

[doug boardley]

it sounds like bonding plaster.

[boldydave]

thank you all so far.hey doug,what`s a tiler doing up at 5 am? i`m on my way to work at a factory.what`s your excuse?