Can someone help!! New bathroom question

[GPMANCHESTER10]

Hello there - I'm searching for advice from tiling professionals.

I am in the process of fitting a new bathroom suite in my smallish sized bathroom. The original bathroom was fitted with tiles that go half way up the walls from the foor - (From this point to the ceiling the walls were just painted). When I took the tiles off they seemed to have been fitted with a robust concrete style adhesive. This means there is a large lip going all the way round the room and the walls are now completely uneven. I want to tile the walls from top to bottom but this isn't possible at the moment because of how uneven the walls are. Can anyone suggest the best course of action??

Is there a product to thicken the sections of the walls that were not not tiled to make the whole walls even and flush - I understand it might be easy to just plaster but i've been told this might cause problems with tile weight as well taking a long time to dry and I can't afford to be with about the bathroom for a long period.

I hope this makes sense and would appreciate any advice!

[david campbell]

you would be easier re-sheeting the walls with plasterboard or if you dont intend to tank the bathroom sum waterproof equivelant,you could also use a deeper notched trowel on the uneven part but this ill use excess adhesive an might cause you problems if your not used to it

[GPMANCHESTER10]

Thanks Dave

What would you say the best option would be? To plaster board and tank or to waterproof tile back board or both??

[kilty55]

hi,what tiles are you fitting on the walls if ceramics then plaster should be fine

you could either plaster it flush,how deep is the discrepancy?
or fix plasterboard over the walls

[GPMANCHESTER10]

Hi thanks

The discrepancy is about 1.5cm in depth - God knows what they used to fix the tiles!!

The bathroom isn't the biggest so i'm wondering would fixing new plasterboard make a massive difference with the size of the room?

[doug boardley]

what are the original walls made up of?, either way you'll have to remove the emulsion from the top half if you're going to tile it. My advice would be to remove all the existing and replace with 12.5mm plasterboard in non-wet areas and 12.5mm plasterboard (tanked) in the wet areas. If your tiles are going to weigh more than 28kg m2 then I'd use hardiebacker 500 instead of plasterboard.

[kilty55]

hi,are your walls solid plaster at moment are there no stud wall?

[GPMANCHESTER10]

Hi - Two are stud and two are solid - Essentially one L shape is Stud and on L shape is Solid

[Polishtradesman]

for solid walls you can use cement based compoud f.e. Nivorapid products (Technicolor Data Sheet http://www.mapei.com/public/GB/products/502_nivorapid_uk.pdf), plasterboards are easier and faster but they not as resistant as cement compaunds. Another thing is that to tile plasterboards you should use at least C2 class adhesive. I dont understeand what you mean: "L shape is Stud". Does it mean that wall are wood construction and plasterboards?

[DJS]

This maybe similar to one of the walls in my parents bathroom, which I did for them a couple of years ago (I also live in Manchester BTW).

One of the stud walls had a steel mesh, which had been skimmed with a cement render, and tiles stuck straight on it. Was a right pain removing the 2 layers of tiles that were stuck to it!!

I smashed off the old cement render and pulled off the old mesh (cutting fingers many times...so if you find the same thing, get some tough rigger gloves to protect yourself).

I then re-boarded the wall, as that particular stud wall was in a dry area of the bathroom and was only due to be skimmed and painted.

For your wall, if it is in a wet area, and your using ceramics. I would plasterboard and tank the whole wall.

If the wall is in a dry area, and your using ceramics then plasterboard only would be good enough.

If your fixing porcelain or natural stone, then definately use cement backerboard for stud walls, or something like marmox boards with mechanical fixings, if going on to solid walls.

Hope that helps, of course if that is the kind of wall it is.

Ofcourse, let us know if you have any more questions.

Best Wishes