Windows keep cracking/shattering

[old_cold]

Are the windows of a material subject to expansion and contraction, like vinyl?
They could have been installed too tightly and the heat/cold daily cycle might do it?

[jmoser201]

Originally Posted by old_cold

Are the windows of a material subject to expansion and contraction, like vinyl?
They could have been installed too tightly and the heat/cold daily cycle might do it?

They are vinyl. That's what I was thinking as well. The first one shattered on the first real cold night we had for the season. And now that I think of it the last one might have shattered when it was 62 degrees during the day and dropped down to 15 at night the other week.