Can window film be used on low E glass?
There are two basic types of low E glass. One of these is a conductive coating put on glass as it is being made. It gives some heat loss reduction, but does little to help reduce heat gain in a building. The second type is a more complex system of multiple layers and conductive coatings deposited on glass after it has been made. This type of low E glass gives heat rejection of 30%-50% in addition to reducing heat loss. Adding window film can drastically increase the heat rejection. Also, on average, low E glass only filters 56% of the damaging UV rays, while our films have the ability to filter 99%. The combination of low E glass and window film can be the best overall system.
