A glass guy told me that window film causes window seal failure on double pane glass and low-e glass. Multiple homes that I have visited have bad seals already. The glass has a slight fog or the seal is drooping from the top and sides. This is before tinting.
Please explain to the homeowner that window film does not cause seal failure on a properly manufactured window. In Arizona specifically, many homes have bad seals from a window manufacturer that is in a lawsuit with its sealant manufacturer.
Confusing? Window seals can go bad. Reputable window film tint manufacturer’s test their products on the different types of glass available. Film-to-glass charts that show approved applications are available for dealers using architectural films. If the product is found safe for the glass and the seal fails or the glass has a thermal shock fracture (breaks), your dealer should help you get the glass replaced. Some film manufacturer’s warrant the seal and glass as long as there is an existing warranty on those items: seal 2-3 years and glass warranty for 5 years. There are many window film products tested and safe for double pane and low-e glass. If you want clear views along with your protection, don’t hesitate, use window tint.
