How to avoid a cracked windshield this summer

On a hot summer day, you protect yourself by staying somewhere cool and putting on sunscreen. But what about your vehicle? Did you know the heat can cause windshield chips to turn into cracks?  

It all comes down to how glass reacts to temperature changes. When your windshield heats up, the glass expands; when it cools down suddenly—say, when you crank your air conditioner—it contracts. This rapid expansion and contraction can turn a tiny chip into a crack that quickly spreads across the glass. Even a small chip disrupts the even surface of the windshield, making it a weak spot that’s especially vulnerable during temperature swings.

What can you do to protect your vehicle? 

Weather damage 

Parking your car directly in the sun is one of the fastest ways for a crack to grow. Windshields expand at high temperatures, and when the temperature changes suddenly, it can lead to cracks in pre-existing chips or holes. If possible, shelter your vehicle from the heat that can damage the glass.  

Use a windshield sunshade when parking outdoors to reduce direct heat on your glass. If you must park in the sun, try to leave your windows very slightly open to help prevent extreme temperature buildup inside. Avoid blasting the air conditioning onto a hot windshield; let the car cool gradually. In winter, don’t pour hot water on your windshield to defrost—it can cause existing chips to crack due to the sudden temperature change.

Rocks and debris 

Another common cause of windshield damage is the vehicle ahead of you kicking up pebbles. So, leave ample space between yourself and other cars when on the road. Likewise, you'll want to avoid driving behind large dump trucks and tractor-trailers as they could have small debris that could hit your vehicle. 

Consider slowing down on gravel roads and maintaining a safe distance from construction vehicles. Check your wiper blades regularly; worn-out blades can scratch glass or fail to clear away sharp debris, making chips worse.

What should you do if you spot a windshield chip? 

Once you see a chip the size of a dime or smaller, you should immediately repair it. If you wait, the area could crack, requiring an expensive windshield replacement.  We will send a technician to your home to repair your car right in your driveway. This service is convenient and restores your car's structural integrity. 

Thankfully, getting help is easy and affordable! If the chip is smaller than a dime (and hasn't spread or cracked), contact CAA Mobile Chip Repair.