Does a Cracked Sunroof Glass Need to Be Replaced?

[OMiguel]

A cracked sunroof glass does not necessarily need to be replaced. Below are specific reasons for cracks in sunroof glass: 1. External Force Impact: Caused by collisions. 2. Temperature Effects: Uneven distribution of thermal stress, where external factors further release the stress in the glass, leading to cracking. External factors can include prolonged exposure to sunlight, impact from sand or stones, and vehicle vibrations. When the pressure caused by the expansion of the air layer exceeds the breaking pressure of the glass, the glass will crack. Most glass breakages are caused by this reason. Similarly, in winter when the ambient temperature is low, the contraction of the air layer creates negative pressure, which, combined with wind and snow loads, can also cause the glass to crack.