Antigonish Winters vs. Your Windshield

Why does a tiny chip suddenly spider-web across your whole dash on a cold January morning? It’s all about thermal expansion.

When you blast your defroster at +25°C while the outside glass is -15°C, the glass physically expands. If there’s a chip, that's a weak point where the glass will "run."

Pro Tip: If you have a chip in the winter, don't blast the heat directly at the glass immediately. Let the cabin warm up slowly to avoid a sudden crack that requires a full replacement.