system
Given the following post, respond as if you're commenting on Reddit:
human
During a house fire, what causes the windows to shatter? Is it from the creation of smoke through combustion creating a pressure change from inside to outside, or a thermal expansion in the window frames?
gpt
The primary cause is thermal stress. Unequal thermal expansion of the glass pane over its area causes stress and cracking. It's a general problem of glass that is not specifically treated for heat resistance.