Tiled shower floor - sooner or later trouble due to silicone joint?

With us too: the shower was intact, all the others cracked. But that might also be due to the separate screed?

I am just wondering whether there was even screed underneath in our case. Since the shower tray is flush with the floor and stands on a small installation frame, that probably can't be the case. Also, perhaps different silicone was used.

wider would be good! Then you can put compartments or shelves in there, a bit of decoration and sparkle sparkle, indirect lighting, hooks for towels and bathrobes etc...
There are 100 possibilities.

Yes, I also briefly considered that, the compartment would then be 5 cm deep. I would have raised the wall to 120 and then made the recess there. However, that wouldn’t have worked with the indirect lighting in the corners. But I suspect it will only bother me in the first year. I have enough other gadgets (KNX) that are more important to me. I’ll do a lot better in the next proper house. :D

I am just wondering whether there was even any screed underneath in our case. Since the shower tray is flush with the floor and stands on a small built-in frame, that probably cannot be the case. In addition, there might also be different silicone.

The screed cups, which is why the silicone joints tear off in the first few years. The shower tray is directly on the concrete (hopefully not only on the mounting feet). Therefore, there is usually no cupping there and the joint remains okay.

Here it was the case that the screed team left out the area of the shower. Why? The tiler does that himself; he is never satisfied with how we do it anyway. The tiler then mixed a cocoa-colored compound from a special bag, it was not screed concrete, and modeled the shower base with it, installed the channel, and a few days later tiled over it. All nicely grouted in the end. Watertight. He said screed is not waterproof enough, his stuff is. If a tile cracks or a joint leaks, no problem. Nothing happens.

Here it was like this: the screed team left out the area of the shower. Why? The tiler does that himself, he is never satisfied with how we do it anyway. The tiler then mixed a cocoa-colored material from a special bag, it wasn’t screed concrete, and modeled the shower base with it, installed the channel, and tiled it a few days later. All nicely grouted in the end. Watertight. He said screed is not waterproof enough, his stuff is. If a tile cracks or a grout line leaks, no problem. Nothing happens.

But then you can’t leave any pipes of the underfloor heating sticking out? Or did the tiler cover the protruding pipes with his material?

In what way? Because of the extension or the storage on the floor? It can't be done differently since the apartment was already in shell construction and the riser shaft is here. The shower was actually the toilet, so even more wasted space. Of course, this segmentation bothers me too, but the door goes there.

Are those 11mm tiles (slip resistance class)? We are looking for 11mm in light/cream/beige for the floor including the shower.