Is window film safe for use on dual pane windows?
Yes, window films that are designed for dual pane glass do not cause seal failure or glass breakage. All of our films are safe for application to dual pane windows. When recommended films are applied to the inside pane of a window, there will be some absorption (except with clear safety films) of the sun’s energy, which will increase the temperature of the glass pane. Some of this heat will transmit to the airspace, slightly raising the airspace temperature. Even a 20° F increase (unusual for most films) will result in a less than 3% change in air pressure, whereas properly made units are designed and tested to withstand 22% changes in air pressure. Risk of seal failure is greatly determined by the quality of workmanship and the quality of materials that go into building the dual pane window. The best guard against seal failure is to purchase well-made units from reputable window manufacturers that have solid experience and histories with dual pane windows. Most films come with a stand
