From EcoHomeMagazine.com:
Vacuum glazings could change the way high-performance windows are manufactured and lower their costs if Guardian Industries’ research efforts prove themselves out. Double-pane, vacuum-sealed glass units with low-E coatings could achieve R-10 or better, and perform at levels now only attained by triple-pane, low-E glazings that rely on sophisticated gas fillers for much of their performance.
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