Botched bathroom installation ?

[steggles123]

I have zoomed in on the images- my laptop screen has a 2k resolution. I cannot see any evidence of SBR or similar on the plasterboard boxing.

I hope he didn't just tile over the paper face on the plasterboard.

Morning.
It's a possibility. A bottle of SBR was at hand but who knows. That corner boxing is the only section of plasterboard as it's covering a soil pipe. The wet areas/wall have been tanked -at-least.

Fortunately I paused matters before any plumbing botched

 

[steggles123]

Following on from wall mishap to flooring.

The plan was to have the floor tiled as it going to have at-least one washing machine and maybe one dryer.

The flooring is a new suspended floor construction with two concrete beams and additional timbers to support the 24mm floor ply (could be thicker my eyes are not great). I cannot replicate any deflection in areas and no squeaks either.

Any views on the tiling prep?

Lay hardibacker with suitable mortar (modified?)
Mechanically reinforce with appropriate screw fixings and cover
Seal joins with appropriate mesh and feather those in
Tanking slurry/paint over floor
Tile?

Or
Use ditra or durabase matting?

Anybody have a preference of which ditra membrane? The ditra-25 or ditra-PS peel and stick? It's only

Any thoughts of the route to take?
Cheers