Wood Windows

Last updated: June 20, 2016

Makrowin wood windows are made from European spruce, oak, and mahogany. The highest-performing Makrowin window meets the strict energy and airtightness requirements of the Passivhaus Institut and uses cork to insulate the frame. Photo: Photo: Makrowin Windows
These windows have achieved an NFRC-certified unit U-factor of 0.20 or lower, or are Passivhaus or PHIUS certified.

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