A Passive House Deep Energy Retrofit
Passive to Positive Consulted with Housing Up, a non-profit affordable housing developer in Washington, DC and Zavos Architecture and Design to deliver the first retrofit apartment building to Passive House standards in the United States. Weinberg Commons was a derelict complex of 3 brick and block apartment buildings constructed in the mid-sixties that had served as low income housing. Typical of buildings of this era, the windows were single pane aluminum frame and the walls were completely uninsulated. It was clear from the existing conditions that the former residents had struggled mightily to remain comfortable, and that mold had been a significant indoor air quality issue.
Weinberg Commons received a deep energy retrofit to Passive House standards. Building C is the first PH certified retrofit apartment building in the US. The retrofitted buildings are now healthy, luminous, and comfortable residences for 36 families in need of affordable, quality housing.
Weinberg Commons was the PHIUS Affordable Housing Project of the year for 2017.