I had the "no stick double sided tape" fail. Leaked like a sieve.
Shower frame pulled away from the wall.
Tried better tape, several different caulks nothing held.
Shower=Water...light bulb moment.
Last resort...marine epoxy resin mixed with verrrry fine sawdust, with a 1/4 round molding at the bottom epoxied to the wall for extra support. A thick bead of PL roof caulk across the threshold frame.
No leaks and SOLID
"Sticks & stones can break your bones...and hail will dent your Airstream"
So when is this..."old enough to know better" supposed to kick in?