Consider the fact that most window systems are only 3 inches and much less wide from the outside of a structure to the inside room. In the case of a single pane window, you have the thickness of a quarter-inch or less! Even though all window and glass films possess an inherent shatter-resistant quality, there are thicker safety/security films manufactured specifically for glass retention to the frame in the event of glass breakage, be it natural or human causes. It requires a more labor-intensive installation and technical expertise, which Ultra*Glaze is capable of performing. Do Not Dither With Your Employees’ Or Family’s Safety & Peace Of Mind!