Can a Windshield Shatter from Heat?

Have you noticed any cracks or minor chips in your windshield? If left untreated, even a small chip in your windshield can spread so much that you’ll need a full windshield replacement. While flying debris on the road or improper windshield installation can cause auto glass damage, one of the biggest threats to your windshield is temperature change. 

Warm Weather Puts Stress on Windshields

As we transition from the cold winter months to the warmer months of spring, any damage to your windshield that seemed minor can get worse due to the change of temperature inside your vehicle. As the temperature inside your vehicle cabin increases, so does the stress that’s put on your windshield.

How Does Heat Affect Auto Glass?

Essentially, your windshield is made of two pieces of glass with a layer of vinyl in between both layers. Most cracks or minor chips will only affect the first layer of glass and won’t reach the second layer. However, if stress is added to the windshield due to an increased temperature the small cracks in the glass can spread and grow in size. The same thing can happen when you use your vehicle’s air conditioning. The cold air from the air conditioner will lower the temperature inside your car but can also put stress on the windshield due to the heat coming in from warm outdoor air. 

Windshield Replacement Solutions

If you notice any cracks in your windshield, you should have your glass professionally replaced immediately. Replacing your windshield early on in the spring will help you avoid any serious damage that can occur due to temperature changes. If you can’t replace your windshield immediately, follow these tips to help save your windshield from any added stress.
• Don’t immediately turn on your air conditioning when you enter your vehicle.
• When parking your vehicle, find a shaded parking space. 
• Avoid slamming your car door when entering and exiting your vehicle.
• Gradually increase and decrease the temperature inside your vehicle. 
• If the crack or chip is smaller than six inches, a professional can likely repair your windshield instead of replacing it which can save you money. 

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