Vacuum-Insulated Windows

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If you look closely at a low viewing angle, you can see the tiny pillars in this prototype Guardian VIG panel.

Last week we took at look at one way to achieve very-high-performance windows: adding additional layers of glazing and multiple low-emissivity (low-e) coatings. This week, we'll look at another option that's even higher-tech: vacuum-insulated glass.

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