The simple answer to - when does a rock chip require windshield replacement, is when you ignore it. Let’s look at some reasons why you should not ignore a rock chip repair and how your actions could lead to a windshield replacement.
The first and most important reason you should not put off getting a windshield repair on your car is for your safety and the safety of every passenger in your car.
If your driving down the highway at 55 mph and your windshield chip becomes a large crack, there is a good chance it will startle you and you could lose control of your car and be involved in a serious automobile accident. Is it really worth it to put off a rock chip repair and put your life and lives of everyone in your car and any other cars involved in an accident? Not when an auto glass repair is quick and inexpensive.