Waterproofing options for new shower room

[Givey Tago]

am I tripping or is the floor not perfectly leveled? No hate just that it ticks me

No offence taken 🤣

It is not level - the two tiles in the far right corner, into the shower stall, are installed on a 2-3 degree Wedi riolito Neo shower tray with a linear drain up against the wall.

It was my worry about preserving the slope, whilst setting the heating mat in self leveller, that I was posting about earlier.

The rest of the floor is plumb, pinky promise!

 

[Givey Tago]

 

[Tile Marble Granite]

View attachment 134363

The ledge, waterproof it well and install a slab on top with a 3/4 overleap and insert it under the wall tile if possible. The ledge should always be pitched down towards the shower. Don't know if you can do that now. Give it a try. There will be loads of water going on top of the ledge. Once done apply silicone.