"Suburban installed windows three years ago and siding and doors last summer and we're very satisfied with the work they did. They are very professional, prompt and dependable. We obviously are very h... » more
- Steve and Vicki Engler of Bettendorf, Iowa


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Visible transmittance (VT)

The percentage or fraction of the visible spectrum (380 to 720 nanometers) weighted by the sensitivity of the eye that is transmitted through the glazing.

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