Plastering in bathroom

[ingenu]

There are threads about this topic, but when reading them, I was not sure that was answering my problem.

So here it is. I have built a bathroom in a loft conversion, I have installed plaster board there.

What I shall put on the top of the plasterboard knowing that some will be recovered with tiles, some with only wall painting?

Is skim plastering sufficient for both cases? I have heard that I should put some undercoat of something? Is that true? Which kind of undercoat?

Cheers.
DvJ

 

[brist]

Just skim it

 

[Bon]

You can get a primer from BAL which you can then tile straight onto, provided it's not a wet area (i.e. shower) as that should be Aquapanelled and tanked.

 

[Build Montpellier]

HI

This i not related to the other comments but maybe someone can help me...

I am renovating an apartment and I have made a large walk-in shower (1.7x.1.2m) which has solid brick walls already covered in backing plaster.

I want to plaster the inside, and then varnish it to make it water tight and then use this surface as the wet walls of the show instead of tiling.

What I have read and would assume from my own experience is that a standard finishing plaster (or perhaps exterior plaster???) with a water proofer would be sufficient if it was then over-painted a couple of times with a quality exterior wood varnish such as yacht / boat varnish.

Has anyone done this and if so, how. Is it a pain to maintain or anything like that?

Alternatively I was thinking of plastering with a "shale" finish. I'm not sure if this is what its called, but its like crushed shells and produces a rough finish to the walls. You see it in swanky hotels on TV and places like that.

you can see it here : http://www.castorama.fr/store/Catal...p-categorie_4941-casto_product-PRDm766034.htm

I'm not sure if this will end up covered in mould because it is not a smooth surface from which water will run off easily? Maybe the varnish will help it run off quickly?

I live in France where its hot in summer and so perhaps shouldn't be a problem in summer, but in winter it is still pretty cold and water can certainly linger in a shower...

Any thoughts???

Thanks