Why would a windshield crack on its own?

Windshields are made of glass and plastic components, so naturally, they can only withstand so much pressure. Too much pressure applied in any one area of the windshield’s surface can be enough to cause cracks to form in or around that particular area.

Can a windshield crack on its own?

In some cases, a windshield may shatter seemingly without cause; but there is always a reason. Sometimes, a windshield may have a small crack or chip which can grow due to extreme temperatures or mechanical stress. If these issues are not repaired, a windshield may shatter – seemingly out of nowhere.

How does a windshield crack without being hit?

Stress crack

Stress cracks happen without any pressure being applied to the glass. It occurs due to a sudden and extreme change in temperature. A windshield expands in hot weather and contracts in cool weather, when the two happen constructively, a windshield can develop a stress crack.

What types of stresses can cause a crack in a windshield?

What are Windshield Stress Cracks?

  • Temperature changes – One of the most common causes of stress cracks is due to extreme changes in temperature. …
  • Pressure changes – Pressure changes, including wind pressure, can also cause stress cracks.
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Should I be worried about a crack in my windshield?

It’s generally not dangerous to drive with a small crack in the windshield, but damaged glass should be repaired or replaced as soon as possible for two important reasons: Windshields weakened by damage provide less protection. Cracked windshields decrease visibility.

What do stress cracks in a windshield look like?

Stress cracks will normally be a straight (or slightly bending) line, and will not have any sign of impact. A “pen test” is often used to determine if there is a stress crack — a ballpoint pen is run along the crack, and if it dips anywhere, it is not a stress crack.

Does insurance cover crack windshield?

Does Car Insurance Cover a Cracked Windshield? Yes, With Comprehensive. Even if it’s a tiny crack, you need to get it fixed: they rarely stay small. The good news is that any comprehensive policy should cover auto glass repair or even windshield replacement, as long as the crack was from a covered event.

How long will Cracked windshield last?

There is no set amount of time to safely drive with a cracked windshield. In some cases, the crack is diminutive and unlikely to spread, making it possible to drive days, weeks or even months without additional damage.

How do you stop a windshield crack from spreading?

There are a couple of methods auto owners can try to stop or slow the spread of a windshield crack.

  1. Apply Superglue or Clear Nail Polish. …
  2. Use a Windshield Repair Kit. …
  3. Avoid Sudden Temperature Changes. …
  4. Schedule Windshield Repair or Replacement.

What are the dangers of a cracked windshield?

A cracked windshield has the full potential to compromise the safety of your car. Windshield cracks sitting directly on your line-of-sight can hinder your driving, especially in low light or in rough weather. Driving when your vision is hindered can increase your risk of getting into a collision or a road pile-up.

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