Many factors influence the life expectancy of window film, including exposure, climate, and the type of film. For example, the outside temperature can greatly affect installation. It is possible for window tint that is installed when the outside temperature is below freezing to crystallize and come off. Also, homeowners should be aware that window-tinting film is designed to fit securely to glass, not Plexiglas or other plastic windows. These materials can contract and expand with the changing temperatures, damaging a film’s bond to the material. The film will likely peel or bubble if it is placed on non-glass windows. To avoid these issues, homeowners should hire a reputable company that specializes in the installation of window tint for the home and should discuss warranties with their installers.