"SageGlass windows and skylights can be tinted to allow in only 3.5 percent visible light. By comparison, commercial buildings typically have windows that transmit around 45 percent visible light, with some of the darkest getting down to about 6 to 8 percent. In their tinted state, SageGlass windows are darker than sunglasses, which, depending on the brand, usually transmit from 10 percent to 30 percent of the light."
The company pegs the solar heat gain coefficient of its SageGlass Classic at 0.09. Sage charts a regular, tinted low-emissivity window at 0.30. Like golf, the lower the number, the better.
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Straight from the company's
Submitted on October 10th, 2007 by David EhrlichStraight from the company's website:
"SageGlass windows and skylights can be tinted to allow in only 3.5 percent visible light. By comparison, commercial buildings typically have windows that transmit around 45 percent visible light, with some of the darkest getting down to about 6 to 8 percent. In their tinted state, SageGlass windows are darker than sunglasses, which, depending on the brand, usually transmit from 10 percent to 30 percent of the light."
The company pegs the solar heat gain coefficient of its SageGlass Classic at 0.09. Sage charts a regular, tinted low-emissivity window at 0.30. Like golf, the lower the number, the better.