Jasan wrote:
I woke up this AM to find that our large round top window in our
family room had cracked during the night. It was 20-30 below zero
last night in Minnesota. I was wondering if the cold weather can
cause this. Our house was built in 2002 so the window is still
actually pretty new. If the cold can do this how does one prevent it
from happening?

Likely a stress fault in the window coupled with the cold weather. In
any case it should be covered by the manufacturer or builder.

--
Joseph Meehan

26 + 6 = 1 It's Irish Math