Plasterboard over existing walls in bathroom

[LianneB1]

Please can anyone give me a bit of advice on the following:

My walls in the bathroom are not very good after removing the old tiles; is it possible to fix plasterboard directly onto them ready for the new tiles? Or do I need to attach studs?

Many thanks.

 

[gcol]

What is the existing wall - stud or solid. If the existing wall is plasterboard, it's best to rip the lot out, re-board and start again.

 

[LianneB1]

The existing walls are plaster on breeze block; the tiles I have are large 60x30cm and fairly heavy so I if possible I was going to 'dab' and screw the boards in place. Thanks.

By the way Hi to your little friend!!

 

[toptec]

Lianne

I have just finished my bathroom the same way you are considering. As long as the surface is sound, dot n dab the boards onto the wall, no need for screws.

I also scrimmed the joints and filled them with a filling compound as I only went half way up with the tiles.

I would read up on the mutitude of posts regarding Aquapanel around your bath. I found it quite an easy job, bit laborious sanding down the joints but I ended up with a lovely flat surface for my tiles.

 

[LianneB1]

The only reason I thought I should screw as well was due to tile weight, I know standard plaster can only handle approx 20Kg m2 and I thought if I used long screws they would go into the breeze for extra strength.

What type of plasterboard / fixing adhesive did you use? Any advice is much appreciated.

Good advice on the AquaPanel, I think I am going to use that in the shower area.

 

[toptec]

To be honest I don't see that the screws will lend anymore support to the dot n dab. I would just increase the amount of adhesive blobs. Most of the weight is downwards, which part transfers onto each sucessive board below it. I fitted mine from the floor up so the floor effectively takes the weight.

I used the standard plasterboard adhesive from Wickes. I used standard 12 mm tapered edge board as I wanted to paint the top third of the wall. The tapered edge helps when the jointing compound, also from Wickes, is applied allowing a smooth join.

Or I could of got the top third skimmed, but for a small area the joint compound was fine.

When you panel around the bath leave a small gap of about 2 mm around the bath edge - this is for sealing with a sealant.

The only real trick was to try and get as smooth a join as possible and to try and keep them plumb. This helps when you come to tile.

 

[LianneB1]

That's absolutely brilliant, thanks for all your help. Wickes here I come!!

Thanks again, Lianne

 

[gcol]

Good advice from toptec.
For tiles the size that you're using, ensure that your plasterboard is dead flat - no adjacent boards sitting proud or it'll show up by your tiles not sitting flush with each other.

 

[LianneB1]

Will do. Thanks again for all the advice. Lianne