window film |
OnceWindow film, also called window tint or Lustalux, is transparent plastic film or metallic laminate which is applied to glass windows. It is available in many different compositions with varying effects on the optical and mechanical properties of the underlying glass. Because window film is applied to finished glass it is easier to install and less costly than chemically-altered specialty glass. Heat rejection films are normally applied to the interior of flat glass windows to reduce the amount of infrared, visible light, and ultraviolet (UV) radiation entering windows. Such films are either dyed or metalized (which can be transparent to visible light) to convert incoming solar radiation to infrared radiation, which is then rejected back through the glass to the exterior. They usually cost 10-15 percent more than regular windows but can reduce energy loss by as much as 30-50 percent. |
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