Knowing a window film term or some can help you understand better and will allow you to choose the ideal tinting solution for you.
Emissivity
This is the window film measure of the system’s ability to absorbed or reflect infrared radiation. The lower value of emissivity, the higher is the infrared reflection. Lower emissivity rating provides a better insulating quality.
Mil (Thickness)
It is the unit used as a measurement of the overall thickness of a window film product. Mil is equal to one thousandth of 1 inch (0.001).
Solar Energy Absorbed
The solar energy absorbed is a term for the window film ratio between the amount of the total solar energy reflected by a glazing system and the total of the visible solar energy that falls into the glazing system.
Solar Energy Reflected
The solar energy reflected is the ratio of the total solar energy that is directly reflected by a glazing system to the total solar energy that falls on it.
Solar Energy Transmitted
The solar energy transmitted is the terms used for the ratio of the total solar energy that passes through a glazing system to the total solar energy that falls into the glazing system.
Visible Light Transmitted (VLT)
The VLT is the window film term for the ratio of the visible solar energy that passes through the glazing system to the total value of visible solar energy that falls into the glazing system.
UV Rejected (UVR)
UVR is the ratio of the ultraviolet solar energy that is being transmitted using the glazing system to the total UV energy that falls into the glazing system. The UV is invisible to the human eye and is the main reason for fading and degradation of upholstery.
Shading Coefficient
Shading coefficient or SC is a window film term which pertains to the ratio of solar heat gain of the glazing system to the solar heat gain of a clear and unshaded window glass.
Solar Heat Reduction
Solar heat reduction or SHR is the window film term for the reduction of the solar energy that is gained from the sun.
Glare Reduction
Glare reduction is the reduction percentage in the visible light transmission that passes through the glazing system with the window film to that when there is no window film present.
U-Value
It is the rate measurement of the heat conductivity of a certain glazing system which is independent of solar radiation. The greater the difference between outdoor and indoor temperatures, the U-value is also greater. Low U-values have better insulation qualities.
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