PERFORMANCE

WonderWindows have exceptional energy performance, typically 2 to 5 times more energy efficient than conventional low e double pane glass windows, when one considers whole building R-value including sash & window framing.

WonderWindows are fixed multi-pane acrylic windows installed between 24" on center framing.

Up to $30/sf LESS installed cost than low-e argon-filled double pane in thermally improved aluminum frames.

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2211

22-1/4" x 11-1/2"

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2222

22-1/4" x 22-1/4"

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2248

22-1/4" x 48-1/8"

Click images for more information

Just 3 window sizes make elevations tuned to climate & orientation!

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  • WonderWindows are fixed multi-pane acrylic windows installed between 24" on center framing.
  • R-value is based on calculations using LBNL's WINDOWS program following NFRC standards. NFRC100/300/500 simulation with NFRC102 test validation, AAMA 101 Air/Water/Structure tests and ICC-ES listings are currently scheduled for 4Q 2019/ 1Q 2020. Email mark@wonderwindow.net if you require an accelerated testing and certification schedule.