Retrofitted Passive House Science


Wood Windows
Passive House Windows
Glass Doors

Fort Greene Historic District
244 DeKalb Ave.
Brooklyn, NY


We furnished and installed 50+ Zola wood windows and doors, which were Passive House Certified.

There are many obstacles to overcome when retrofitting a historical brownstone to Passive House standards. The installation detail for the openings and coordination of air tightness is critical.

It requires a coordinated effort across the teams working on the project, and our experience in the building standard helped move the project towards certification through the Passive House Academy (PHA).

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