Take a look at this nice bench seat in a large custom shower enclosure.
It may or may not jump right out at you but there is something seriously wrong, seriously illogical, about the installation.
The problem is the glass does not sit "on top" of the tiles; it is instead trapped in place by tiles on each side. There is not even any caulk to prevent water that hits the glass from running behind the tile where it could find its way into the structures below.
The fact there was no hidden means of protecting underlying structures was evidenced by elevated moisture meter readings under the tiles, as well as in the drywall around the exterior.
Rebuilding this entire end of the shower enclosure will likely be necessary, and some wood decay/rot should be anticipated given the musty odors present around the area.
It just is not logical that this installation could be expected to be successful.
Charles Buell, Real Estate Inspections in Seattle
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WA State, Home Inspector Advisory Licensing Board