Avada Car Dealer News

A cracked windshield is more than just an eyesore—it can compromise your safety and lead to costly repairs if left unchecked. Understanding what causes cracks can help you prevent damage and keep your auto glass in top condition. Here are the most common reasons your windshield might crack and what you can do about it.

1. Road Debris and Flying Rocks

One of the most common causes of glass cracks is road debris, especially small rocks and gravel that get kicked up by other vehicles. This is particularly common when:

  • Driving behind large trucks carrying loose materials.
  • Traveling on gravel or poorly maintained roads.
  • Following a vehicle too closely on the highway.

How to Prevent It:

  • Maintain a safe distance from trucks and construction vehicles.
  • Avoid gravel roads when possible.
  • Use mud flaps if you frequently drive in areas with loose debris.

2. Sudden Temperature Changes

Windshields are made of laminated glass, which expands and contracts with temperature changes. However, rapid shifts can cause stress cracks. This happens when:

  • You blast the defroster on a frozen.
  • You pour hot water on ice-covered glass.
  • Your car goes from extreme cold to intense heat too quickly.

How to Prevent It:

  • Gradually warm up your windshield using the defroster on a low setting.
  • Never use boiling water to melt ice.
  • Park in a garage or shaded area to avoid extreme temperature fluctuations.

3. Poor Installation or Structural Stress

If your windshield wasn’t installed correctly, it might not be able to handle normal stress, making it more likely to crack. Signs of poor installation include:

  • Visible gaps or uneven edges.
  • A windshield that rattles when driving.
  • Cracks appear without impact.

How to Prevent It:

  • Always choose a professional auto glass installer with experience.
  • If you suspect improper installation, get it inspected and reinstalled if necessary.

4. Pressure from Improper Parking or Driving Habits

Excessive stress on your vehicle’s frame can lead to windshield cracks, especially if:

  • You frequently slam your car doors with windows closed.
  • You park on uneven surfaces for long periods.
  • Your car twists or flexes while driving over potholes or speed bumps.

How to Prevent It:

  • Close doors gently to reduce pressure on the glass.
  • Park on level ground whenever possible.
  • Drive carefully over rough roads to minimize vehicle stress.

5. Hailstorms and Severe Weather

Hail, heavy rain, and strong winds can lead to cracks or even shattering. Large hailstones, in particular, can hit with enough force to damage.

How to Prevent It:

  • Park in a garage or covered area during storms.
  • If caught in a hailstorm, pull over in a safe place until it passes.
  • Use a cover if you don’t have access to covered parking.

6. Manufacturing Defects

Although rare, some windshields have defects from the factory, making them more prone to cracking. These weaknesses can appear as small distortions in the glass or unexplained cracks.

How to Prevent It:

  • If your windshield cracks without any impact, have it inspected under warranty.
  • Choose high-quality auto glass replacements from trusted brands.

7. Existing Chips That Spread Over Time

A small chip in your windshield might seem harmless, but over time, it can expand into a full crack due to:

  • Vibrations from driving.
  • Temperature changes.
  • Water seeps into the chip, freezing, and expanding.

How to Prevent It:

What to Do If Your Windshield Cracks

If you notice a crack, act quickly to prevent further damage:

  • For small cracks or chips – Apply clear tape to prevent dirt and moisture from entering, and schedule a repair ASAP.
  • For large cracks – Avoid driving and replace the windshield as soon as possible for safety.
  • Consult a professional – Auto glass Langley experts can determine whether repair or replacement is the best solution.

A cracked windshield can compromise your safety and visibility, so addressing damage early is key. By understanding common causes like road debris, temperature changes, and pressure stress, you can take steps to protect your windshield and extend its lifespan. Need a windshield repair or replacement? Contact Glassco Auto Glass & Window Langley specialist today!