Sealed-unit manufacturers, window manufacturers, and builders have often indicated to consumers that the installation of any window film on sealed units will cause or contribute to seal failure. While it is true that some window films are not suitable for sealed units, there are many films on the market today that are designed to be installed on these units.
The Window Film Committee of the Association of Industrial Metallizers, Coaters, and Laminators (AIMCAL) commissioned a study on this subject. Based upon this study, window film had no observable effect on the performance of high-quality manufactured insulated units.
Professionals in the field, like Peake Sun Control Inc., can inspect your units and advise you on the use of window films for your home or office.