I'm renovating a small bathroom and want to tile onto a block wall that has been finished with a sand/cement render. The 30 year old plasterwork that was on has been removed - it more or less fell off. The wall is out of plumb by about 1.5cm bottom to top, and surface hollows of about 8mm over 2m. I don't think I'll get a good result tiling onto it as-is
I was originally planning of getting a plasterer in, but was starting to think about DIY as the final surface does not need to be perfect - just good enough to take tiles.
What about using something like Ardex AM 100 "Rapid Hardening One Coat Tiling Render"
Another option would be to dot-and-dab 9.5mm plasterboard - but I will lose more space this way - but it would be a lot easier.
Niall