Rock chips are one of the most common types of windshield damage and can range from a minor annoyance to a serious safety hazard. While they might seem small, ignoring rock chips can lead to larger cracks and expensive repairs. Here’s everything you need to know about rock chips, including how they occur, how to fix them, and how to prevent them.
What Is a Rock Chip?
A rock chip, also known as a stone chip or windshield chip, is a small area of damage caused when debris, typically a rock or piece of gravel, strikes the windshield at high speed. The impact causes a small divot or crack, which can take various shapes depending on the force and location of the strike.
Common Types of Rock Chips
Rock chips come in different forms, and identifying the type of damage is the first step in determining how to address it.
Here are the most common types:
Bullseye: A circular chip with a clear impact point and rings around it.
Star Break: A chip with small cracks radiating outward, resembling a star.
Combination Break: A mix of bullseye and star break features.
Surface Chip: A shallow chip that doesn’t penetrate the windshield’s inner layer.
What Causes Rock Chips?
Rock chips occur when small debris is flung at your windshield.
Common causes include:
Road Debris: Gravel, small stones, and other debris kicked up by vehicles in front of you.
Weather Conditions: Hail and flying debris during storms can create chips.
Construction Zones: Loose gravel and debris in these areas increase the risk.
Highway Driving: Faster speeds mean greater force upon impact, making chips more likely.
Why Rock Chips Should Be Addressed Quickly
Even the smallest rock chip can escalate into a bigger problem.
Here’s why immediate action is crucial:
Spreading Cracks: Temperature changes, vibrations, and stress can cause chips to spread into larger cracks.
Weakened Windshield: Rock chips compromise the structural integrity of your windshield, which provides up to 45% of your car’s roof strength in a rollover accident.
ADAS Calibration Issues: If your car has Advanced Driver Assistance Systems (ADAS), like lane departure warnings or automatic braking, a damaged windshield can interfere with their functionality.
How Are Rock Chips Repaired?
Rock chip repair is a quick and affordable process that restores your windshield’s strength and appearance.
Here’s how it works:
Inspection: A technician examines the chip to determine if it’s repairable. Chips smaller than a quarter are generally eligible for repair.
Cleaning: The damaged area is cleaned to remove debris and prepare it for the repair process.
Filling: A special resin is injected into the chip, filling the gaps and restoring the glass's strength.
Curing and Polishing: The resin is cured using UV light and then polished to create a smooth, clear finish.
Repairs typically take less than 45 minutes and cost significantly less than a full windshield replacement.
When Should You Replace the Windshield Instead?
Rock chip repair isn’t always possible.
You may need a windshield replacement if:
The chip is larger than a quarter.
The damage is in the driver’s direct line of sight, where repairs might leave minor distortions.
The chip is located near the windshield’s edge, as this area is more prone to spreading cracks.
The windshield has multiple chips or cracks.
How to Prevent Rock Chips
While it’s impossible to avoid every risk, these tips can reduce your chances of getting a rock chip:
Keep a Safe Distance: Avoid tailgating vehicles, especially trucks, which are more likely to kick up debris.
Drive Carefully in Construction Zones: Reduce your speed and stay alert to loose gravel and debris.
Use a Windshield Protector: Invest in a cover if you park outdoors, especially during storms.
Repair Chips Immediately: Quick repairs can prevent small chips from spreading into larger cracks.
Final Thoughts
Rock chips may seem minor, but they can lead to significant problems if ignored. Prompt repairs can save you money and help maintain the safety and structural integrity of your vehicle.
At SecureAuto Glass and Calibration, we specialize in quick, professional rock chip repairs and windshield replacements. Contact us today for a free assessment and let us help you keep your windshield in top shape!
