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NFRC - Light Transmission

For a printable version of the NFRC Performance Sheet, Click Here





Using glazing and coatings to regulate daylight views

Whether framing a scenic outdoor view or enhancing a room's interior with a splash of light, windows serve an important function in our lives. In the past, special tints and coatings designed to reduce solar heat gain also had the unfortunate effect of cutting down on the amount of light that could pass through the window. Today's technological advances allow for generous control over characteristics of the light transmitted through the windows, allowing sunshine to brighten our indoor areas without the problems of glare or fading of furnishings.

Gilkey's Windows make it possible to reduce solar heat gain with little reduction in "visible light transmission," the amount of light in the visible portion of the spectrum that passes through a glazing material.

You should choose spectrally selective or clearer window if:
  • You desire maximum available daylight.
  • You prefer to have as clear a view as possible through your windows.
NFRC visible light transmission comparison
 
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