Max run out too to bottom

[Marky116]

Hi the wall is flat but runs out gradually from top to bottom by 10 mm, can this be overcome through tiling or does it need to be plastered
Thanks mark

 

[Dumbo]

What is the wall construction , and no with the plastering

 

[Marky116]

What is the wall construction , and no with the plastering

Osb board 18 mm with 6 mm hardy backer screwed and bonded on top thanks mark

 

[Dumbo]

Well it's a bit late now to ask about run out.
I think you are going to have to make it up with adhesive as plastering will reduce the weight carrying capacity . There is one thing could look at but I can't recommend as I don't know it's tech specs or have experience with it and that is ardex tilers render . But ideally you would of fixed the run out before putting on the ply . One last option over board again with jackoboard using the spot fixing method with additional screws and washers and build that out . .
If you just decide to build out on adhesive make sure you don't exceed maximum permissible thickness of adhesive

 

[Unused Account 1]

Most rooms out by that if you measured ,

 

[Time's Ran Out]

Most rooms out by that if you measured ,

Not good if it’s mosaic though!
As others straighten up before tiling.

 

[LM]

.

 

[Marky116]

Ok slightly confused , Hardie backer not fixed yet , so have option of pulling off osb board. Also have other bathrooms that need tiling and their also out around 8 to 12 mm but plastered. Simple question is this an acceptable tolerance in regard to tiling. Or dies it depend on how good the tiler is. Mr jcrtiling " sarcastic comments aren't helpful but taking the **** is acceptable"

Cheers mark

 

[Dumbo]

Ok slightly confused , Hardie backer not fixed yet , so have option of pulling off osb board. Also have other bathrooms that need tiling and their also out around 8 to 12 mm but plastered. Simple question is this an acceptable tolerance in regard to tiling. Or dies it depend on how good the tiler is. Mr jcrtiling " sarcastic comments aren't helpful but taking the **** is acceptable"

Cheers mark

It depends how fussy you are . To get the best possible finish you want the the best start after all riain bolt wouldn't best Johann Blake if he gave him a 1 second head start. . I would either knock of plaster and fix marmox or jackoboard as previously described or if you don't want to do that fix over the plaster . As regards stud you could take down osb and put furrings on the studs ,( tapered timber ) or I think I heard someone say they used the low expansion foam on the studs that can be used to fix plasterboard to walls and when its setting tighten the screws until it's perpendicular .