The purpose of windshield is to restore the structural integrity of the glass and improve the optical clarity of the affected area. Road debris frequently strikes windshields and causes damage that may seem minor, but can lead to further problems down the road. Unless the damage is repaired, the glass will continue to crack until the entire windshield requires replacing. That’s expensive. A lot more expensive than a simple windshield chip repair job. Chips up to 1/2″ and most minor cracks can be successfully repaired without replacing the windshield.