Today’s windshields are a safety device just like seat belts and airbags.
Properly installed automobile windshields are also essential to safety along with the roof of the car, they provide protection to the vehicle's occupants in the case of a roll-over accident.
The installation of the auto glass is done with an automotive grade urethane designed specifically for automobiles. The adhesive creates a molecular bond between the glass and the vehicle.
If the adhesive bond fails at any point on the glass it can reduce the effectiveness of the air bag and substantially compromise the structural integrity of the roof.