"It's a very consistent temperature all the time. Everything is just, sort of, comfortable."


Key Features

  • Walls: Double wall, R-24.4 total: 10" cellulose, two 2x4 24" o.c. walls, fluid-applied weather-resistant barrier.
  • Roof: Gable roof: 16" joists, plywood sheathing, 3" rigid polyiso, hard board, standing seam metal on pitched or TPO membrane on flat roofs.
  • Attic: Unvented R-70 total: R-56 blown cellulose under roof deck + 3" R-24 polyiso above roof deck.
  • Foundation: Daylight basement: Below-grade - 4" R-30 polyiso under slab and on walls. Above-grade - framed walls with 10" R-22 cellulose.
  • Windows: Triple-pane, U=0.18, SHGC=0.23.
  • Air Sealing: 1.1 ACH50, fluid-applied weather barrier, aerosol whole-house sealant.
  • Ventilation: HRV continuous, 75 SRE.
  • HVAC: Ducted mini-split heat pump with 5 inside heads, 10.3 HSPF, 19.7 SEER.
  • Hot Water: Heat pump water heater, 3.45 EF, 80-gal.
  • Lighting: 100% LED, natural lighting.
  • Appliances: ENERGY STAR refrigerator, dishwasher, clothes washer and dryer, exhaust fan.
  • Solar: 14.25 kW, rooftop panels.
  • Water Conservation: EPA WaterSense faucets, showerheads.
  • Energy Management System: Smart home ready.
  • Other: Electric vehicle charging station, sustainably harvested floors, stairs, treads, siding. High-recycled content countertops, cabinets, tile.

Building Specifications

Conditioned Area 3,989 ft2
Bedrooms 6
Bathrooms 4
Stories 4
Climate Zone 4C
Completion Date January 2021

Modeled Performance

  With PV No PV
HERS Index -2 49
Annual Energy Cost $0.00 $1,850.00
Annual Energy Cost Savings $3,500.00 $1,900.00
Annual Energy Savings 29,400 kWh 14,200 kWh
First 30 Years Savings $142,900.00 $76,400.00