This project is a high performance home solidly on track for LEED Platinum certification. It is an all-electric home, without natural gas hookup, featuring a 7.2kW solar PV array which provides approximately 39% of the annual power demand (including HVAC). Operable clerestory windows provide natural daylighting and ventilation. The windows are high performance units with orientation specific Solar Heat Gain Coefficients. EV car chargers are prewired in the garage.
Its high performance wall system is comprised of waste fly-ash siding, on a rain screen with 2" of EPS on the exterior sheathing. This extremely tight perimeter building shell, in conjunction with various passive strategies, zoned air-source heat pumps, induction cooktop, and hybrid water heater and dryer, combine to give this home an extremely low annual pEUI. At 13 kBTU/s.f., it's 74% baseline reduction is one of only 331 projects submitted in 2017 that achieved the 2030's current 70% reduction target.
This LEED Platinum home is all-electric, set up for aging in-place as well as having a minimal environmental footprint, and is located in a great walkable community. It is situated on the owner's original double lot. The two existing 1950's era homes were carefully deconstructed for material recycling. Reclaimed materials from many local sources were used in the new home included vintage scalloped wall paneling, a vintage cast iron tub and laundry sink. Nearly all of the new construction material was USA made.
While larger than the neighboring homes, its massing is split into two primary elements that relate to the neighborhood's scale and rhythm. These two masses are joined by a butterfly roof formed from a series of curved glulams, which logically define the interior spaces.
Aging in-place strategies were incorporated such as single floor living, flush floors, a lap pool for fitness, blocking for future grab bars, and wide clearances at doors and hallways. A guest suite doubles as a future care givers space.
For resiliency, a battery back up system, powered by a 7.2kW solar array, is pre-wired to supply critical loads during outages. The entire roof has 'Ice and Water Shield' in case of high wind roof damage. Oversized gutters and downspouts handle potential extreme storms.
The landscaping utilizes native plantings and is designed to retain 100% of the stormwater on site via rain gardens, bioswales, permeable pavers and Cultec rechargers. A 2’ perimeter river rock band serves as a pest management strip.