Window film is basically a self-adhesive polyester film that is applied to the interior surface of glass.  It’s used as a “retrofit” for existing glass on automobiles, homes and commercial buildings in order to upgrade solar control and safety.  Solar radiation from the sun is divided into 3 components; visible light we can see, and infrared and ultraviolet rays which we can only feel.  As solar radiation strikes a piece of glass, window film acts as a “sunscreen” to block harmful UV rays as well as regulates the levels of heat and light passing through the glass. The amount of heat and light rejected is all dependant on the type of window film selected.  There are basically two types of window film – non-reflective or dyed films that primarily absorb solar energy, and reflective or metallized films that absorb as well as reflect solar energy.


Certified Energy International uses only the highest quality films and professionally installs all of them so that we may offer the very best in warranty.

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