Tiling Help needed! Tiling over old plaster/wallpaper

[sforde88]

when you say prime the plaster do you mean with watered down paint?

 

[Andy Allen]

when you say prime the plaster do you mean with watered down paint?

Lol....no with an acrylic based primer not pva..

 

[White Room]

Or Sbr

 

[TJ Smiler]

Only been away for a month and look what I have missed out on hahaha

 

[GordonK]

Whilst this is an old thread and I am struggling with the pro's and cons' of doing just this I am curious about the situation I find myself in. I felt it better adding here than doing another thread with the similar issue.

The 2 rooms I have just done had wallpaper put directly onto the plasterboard and I dilligently stripped those off but OMG what an absolute nightmare. It took literally weeks to do ... and the damaged plasterboard couldnt be papered on again - trying to work out where wallpaper/glue finished and the plasterboard surface started was impossible.... this paper was well stuck on. So as well a speeling off paper i ended up having to re-skim the walls.

I am now faced with the bathroon which has been similarly wallpapered - then painted with emulsion - to the board. Im so tempted to just tile on top of the stuff.

Help me understand why thats so bad when plasterboard is , in my simple mind , just plaster with paper glued on top of it .. is the wallpaper not simply another layer similarly bonded to the plaster top..if so why would it 'peel off' when its such a B*****r to get off with steamers , water and raw brute force ...

So why not seal the paper with the right seal and just tile away in this situation. This stuff really is stuck on.

If i have to pull all this wallpaper off again I may not survive....

 

[On one]

When plasterboard is manufactured the gypsum core is formed by pouring rapid setting liquid gypsum in between an upper and lower layer of paper which is squeezed between rollers to form the different thicknesses of PB comes in.
So in effect it permeates the paper layers and as such it's characteristics are factory controlled and on site uses can be predicted.
When you tile onto 'wallpaper'.....what are you actually tiling onto..... a vinyl covered layer of wallpaper? ,a coat of paint covered wallpaper? and so on and so on.....
Quickest way to deal with wallpaper direct onto plasterboard is to remove the plasterboard! ,believe me, it's not as hard as you think.

 

[GordonK]

When plasterboard is manufactured the gypsum core is formed by pouring rapid setting liquid gypsum in between an upper and lower layer of paper which is squeezed between rollers to form the different thicknesses of PB comes in.
So in effect it permeates the paper layers and as such it's characteristics are factory controlled and on site uses can be predicted.
When you tile onto 'wallpaper'.....what are you actually tiling onto..... a vinyl covered layer of wallpaper? ,a coat of paint covered wallpaper? and so on and so on.....
Quickest way to deal with wallpaper direct onto plasterboard is to remove the plasterboard! ,believe me, it's not as hard as you think.

Thanks - and tbh I am seriously considering doing just that as opposed to spending weeks pulling paper off walls... this isnt vinyl its just plain old anaglypta and a layer of white emulsion...