On November 17, 2016 at 21:47, pilgram said...
If you can find the studs, drill 3/4" holes IN THE GLASS,use spacers/washers that are a little thicker than the glass and lag into the studs.
Technically you are floating the mount from the tile and securely mounting it to the sub structure.
I've done it many times.
It also works well on stucco,stone,etc.
This-
carbide hole saws are your friend.
i haven even done this with the stone veneers,