Windshield Crack - Not Covered by Warranty

[Blue Lectroid]

There’s a nuance though - if the chip didn’t exist, or had been filled in, would defrost have caused the windshield to crack? My bet is a hard no.

That means that the crack *did* originate with the chip, and the defrost exacerbated it, which is precisely what I’ve been describing the whole time.

@borski I completely agree with your assessment. While the OP has completely discounted the fact that I spent countless hours of my life working with glass as a glass blowing instructor and am therefore speaking based on actual life experience, the reality remains that the chip caused the crack. Period. No chip, no crack. And that is not conjecture...it is physics and fact based on the way glass behaves. Lucid treated the OP appropriately in this situation IMO and IME.