New window technology has insulation values equal to walls
Bob Morris @ Mar 31st 2008 06:25 - Category: Energy conservation
Vacuum-insulated glass being developed by Guardian Industries will deliver a startling R-12 insulation level, making it equal to walls. The price is expected to be reasonable and here’s the kicker.
“This performance level would convert most windows in heating climates into net energy suppliers, providing more energy to the home via passive solar gain (even facing north) than the window loses”
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