Westeck Passive House Certified Window

DEVELOPING A PASSIVE HOUSE LINE

Westeck manufactured what it says is the first and only swing solid wood casement Passive House certified window in North America. The company could not reach the final values with solid wood, but found cork to be the “silver bullet.” The author says cork is an excellent insulator and was readily available in the compressed shapes needed and, once laid into the frame and sash, allowed Westeck to achieve Passive House numbers.