From Jetson Green:
This home is officially the first Passive House in North Carolina. It’s also the first Passive House in the country built out of concrete, according to Chris Senior, certified Passive House consultant and owner of Anchorage Building Corp., the builder. Senior said his company was able to keep construction costs “surprisingly reasonable” by fashioning the entire exterior from concrete.
The ultra-efficient house was designed by architect Jay Fulkerson with a nod to Solar Hemicycle by Frank Lloyd Wright. It was built at 760 Kenmore Drive in Chapel Hill, North Carolina and has an R20 slab, R42 walls, and R62 rafters.
Kenmore House has high-performance windows by Serious Windows (725 Series), the same company used in the Breezeway House, Sungazing House, and Hudson Passive Project. The windows are Krypton-filled and have a low solar heat gain coefficient.
Read the rest of, The First Passive House in North Carolina