ICE Solar Films Specifications


  • Visible Light Transmittance
    Measures the percentage of visible light (natural daylight) that passes through a glazing system. All solar films reduce light transmission in order to provide solar heat control.

    Visible Light Reflectance
    Measures the percentage of the visible light that is being reflected by the window film. Higher reflective films offer higher heat rejection capability. Newer technology films need not be dark or reflective to provide impressive solar energy performance.

    Solar Direct Transmittance
    Measures the percentage of solar energy that passes through a glazing system. Normally lighter coloured films tend to transmit higher levels of solar energy while darker and more reflective films reject more solar energy. However, newer technique in metal deposition has circumvented this phenomenon by allowing lighter coloured films to have impressive solar energy rejection as well.

    Solar Direct Reflectance
    Measures the percentage of the solar energy that is being reflected by the window film.
  • Total Solar Energy Rejection
    Measures the window film’s ability to reject solar heat in the form of visible light and invisible infra-red radiation.


    IR Rejection
    Measures the window film’s ability to reject infra-red radiation at a specific point of the solar spectrum.
  • Emittance
    Measures the surface’s ability to absorb or reflect far infra-red radiation. The lower the emissivity, the lesser the heat that is re-radiated from the glass into the interior of the room or the car.

    Solar Heat Gain Coefficient
    The fraction of external solar radiation that is admitted through a window, both directly transmitted, and absorbed and subsequently released inward. The lower a glazing system's SHCG, the less solar heat it transmits, and the greater its shading ability.

    Shading Coefficient
    The ratio of the solar heat gain passing through a glazing system to the solar heat gain that occurs under the same conditions if the window were made of clear, un-shaded double strength glass. The lower the number, the better the solar shading qualities of the glazing system.