does Toughened glass lose its strength over time?

Answers:
Yes, glass does age.

Tempered glass becomes more brittle. Large sheets of glass actually flow and after several years are thicker at the bottom and become very weak at the top.

Other answers:

water pipes make loud noise about every 45 minutes for no reason, water not turned on or toilets flushed?

is polyurethane harmful if used in a open area?

What is a quck fix for fixing holes in the wall?

What the heck could possibly be wrong with our pool?

what's the best way to lay new linoleum on a kitchen floor?

who makes top rated gas weedeaters?

how can i get rid of a permanent marker?

plunger stuck down main drain. too far to reach. how do i get it out?

AC Compressor shorted out wires. Freon leak out. Do I requirement a exotic system?