tiling onto plasterboard...possible?

[DrTre]

Is it OK to tile in a bathroom directly onto plasterboard or does it need skimming or prepping first?

TIA

[DrTre]

Stig said:

It's fine - but seal the plasterboard with PVA or a decent primer first.

Or, have a read of this: http://www.british-gypsum.com/PDF/wb_tiling_04_06....

Edited by Stig on Monday 6th April 11:55

Genuinely much appreciated

[DrTre]

VxDuncan said:

Be sure to use waterproof PVA in a bathroom though...

Noted, ta

[DrTre]

Chilli said:

Oh, and make sure the plasterboard is SECURELY attached....trust me on this one!

No worries, it's had more screws than Paris Hilton

Edited by DrTre on Monday 6th April 13:34

[DrTre]

mrmaggit said:

Most tilers round here use WBP ply in bathrooms, or Knauf Aquapanel. The main problem with plasterboard in bathrooms is water penetration through gaps in the grout/sealant.

This causes the plaster in the board to fail, and the tiles to end up on the floor. Moisture Resistant board has resistance in the paper covering the board, but this is, of course open at the ends.

It's already been put up by the people appointed by my insurance co (despite me specifically instructing them to ONLY plaster and leave everything else to me as I'm sick to the back teeth of their incompetence). I was thinking much the same as you say wrt to plasterboard however it's in a toilet/basin room so there's hopefully not going to be a great deal of moisture, ie. no shower/bath condensation.

Essentially, aside from the area around the basin (which is plyboard) the areas of plasterboard shouldn't be getting wet at all unless I start chucking water all over the place.

[DrTre]

mrmaggit said:

You should be OK then.

Cheers

[DrTre]

thanks guys.
that tanking kit, it's OK for shower rooms etc, if I wanted to do an internal shower?

[DrTre]

Autonotiv said:

You could always use Aquapanel or Hardibacker.

Sorry, I meant the shower room exists and is already tiled, was meaning more if I wanted to retile it.

The toilet/basin room has been plasterboarded already and I'm reluctant to strip it out again. In entirety I'm talking <2m square of plasterboard, about 3ft away from any water source (the basin) so it's really not going to get wet at all.

ETA I didn't look too closely at the stuff they'd put in actually, so it may along the lines you mention. Cheers

Edited by DrTre on Monday 6th April 22:32

[DrTre]

Neil_Sc said:

Note water proof grout means the grout will not deteriorate on contact with water. It will let that water through to the plasterboard which will eventually rot through the water contact.

You could use a tanking solution such as that from Bal which creates a barrier to stop water from rotting the plasterboard.

http://www.bal-adhesives.co.uk/products/waterproof...

Some may say it is OTT, but I think you might as well do the job properly and at least you know you want have to rip it all out in future due to water damage to the plasterboard.

Hello
Sorry for the bump.
Does this stuff work the other way? ie a barrier to damp from the outside?

Ground floor window, underneath of which is old stonework directly facing onto soil/ground. Am fairly sure damp is coming in through this brickwork and want to seal it up. If not the above, what else can I use?

TIA