ᐅ Walk-in shower completed and issue with waterproofing

Created on: 29 May 2017 06:59
A
abc12345
Hello everyone.
I am new to the forum but have already read a lot here regarding our major renovation.

About our problem.
A walk-in shower was installed. I should mention right away that it was done not by me but by my uncle, who is actually a trained tile setter.
I was not always present during the construction work.
The shower was tiled after all the preliminary work, with the appropriate slope. So far, so good. I have now laid the flooring in the rest of the bathroom (vinyl), assembled and installed the shower enclosure, etc. Now I wanted to finish by applying sanitary silicone sealant to the shower, and that’s when I noticed a big problem that my uncle just shrugged off.
At the start of the shower, the floor (tile and vinyl covering) is level. That’s fine, however, the slope was made only in one direction and as a result, I now have a wedge at the edge that is not covered by anything. At the lowest point, it is 2cm (0.8 inches).
What can I do here to make the whole area watertight?

Unfortunately, I don’t have any pictures at the moment because I am on my honeymoon. However, I found a picture from when the tiling was done.
The slope is marked in red. Everything without tiles already has vinyl flooring installed, and the shower enclosure is also mounted and resting on the vinyl.

I hope you can help me with this problem.

Thank you in advance for your help.

Best regards

EDIT
I just noticed the image didn’t upload correctly. The internet here is excellent... not ^^
I hope you still understand what I mean.
A
abc12345
16 Jun 2017 10:55
What just came to mind: only the tiles were from OBI. The cladding was from Bauhaus, as OBI didn’t have the right one in the style I wanted. OBI only had small elongated tiles that matched the larger tile. But those were also easy to work with.
S
Seretium
20 Jun 2017 10:03
Ok, thanks. I found the tiles. They are definitely an option!