Hey Eva, That's a tough one for me to answer because i really didn't research traditional pool tile since I knew I was going all glass at the waterline. As I'm sure you know, glass has some unique installation requirements, mainly because it's a hard/dense material. I would be most curious/concerned about how the PB plans to install your glass (what kind of moisture barrier, what kind of thinset) because that's the most troublesome.
But that's not your question, right. I looked at a few pools under construction trying to learn for mine. I don't recall those tile jobs looking different from yours as far as thinset coverage is concerned. In fact, I'm pretty sure a couple of them didn't even use thinset ... it looked like they went with their own mortar (portland and sand) to set the tile.
Unfortunately, I don't have any experience or basis for saying what will or won't hold. My recommendation would be to talk with your PB at length about it and maybe even an email to have some record. I'm sure they'll tell you that it's going to be rock solid and completely sealed with plaster/grout/caulk. I have many friends and family in the area with pools and I don't recall any of them having a tile pop off. Our mild climate probably helps with that.
CCIsotope had some of the exact same concerns. http://www.troublefreepool.com/threads/70877-New-Pool-Cypress-TX-Pics/page3
But that's not your question, right. I looked at a few pools under construction trying to learn for mine. I don't recall those tile jobs looking different from yours as far as thinset coverage is concerned. In fact, I'm pretty sure a couple of them didn't even use thinset ... it looked like they went with their own mortar (portland and sand) to set the tile.
Unfortunately, I don't have any experience or basis for saying what will or won't hold. My recommendation would be to talk with your PB at length about it and maybe even an email to have some record. I'm sure they'll tell you that it's going to be rock solid and completely sealed with plaster/grout/caulk. I have many friends and family in the area with pools and I don't recall any of them having a tile pop off. Our mild climate probably helps with that.
CCIsotope had some of the exact same concerns. http://www.troublefreepool.com/threads/70877-New-Pool-Cypress-TX-Pics/page3