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Credit: Noah Kalina

Solarban 72 Starphire from PPG Industries is a low-E solar-control glass that is engineered for high visible-light transmittance. In a 1" IGU, the material allows 71% visual light transmittance, but has a solar-heat-gain coefficient of only 0.30. IGUs feature one uncoated low-iron Starphire glass lite, and another triple-silver coated lite; the combination maximizes clarity and views. • ppgideascapes.com