GRADE HAUS
Single Family Residential
New Construction
5,100 SF
Embedded in a steep hill, this Passive House is built entirely from insulated concrete forms (ICF’s). The rear of the building is set into the natural grade while the southeastern facade orients to face the sun. Large glazing at living spaces and ample exterior decks take advantage of morning and midday solar gain. The careful consideration for solar orientation is accentuated by a roof-mounted PV array, offsetting the project’s minimal energy use. The plan also includes integrated, yet private accommodations for multiple family generations to live beneath a single roof.
PROJECT STATS
Passive House (PHIUS)+ 2018 Source Zero Energy Precertification
Building Metrics
Predicted Energy Use Intensity: -1.95 kBtu/yr/sf
Building Envelope
Slab On Grade: R-33
Below Grade Walls: R-43
Above Grade Walls: R-43
Roof: R-60
Building Systems
Power / Fuel Source(s): All electric
Renewable Energy: Rooftop solar PV (20 kW system size)
Ventilation: Energy recovery ventilator
Appliances: Energy-Star