"We continue to enjoy our Deltec home every day. It's amazing!"


Key Features

  • Walls: 2x6, 24" o.c., panelized, R-24 total: advanced framed, 5.5" cellulose in cavity, 5/8" plywood sheathing, 1" R-5 graphite EPS, drain wrap, fiber cement lap siding and trim.
  • Roof: Truss monoslope: vaulted parallel chord 16" open-web trusses at 24" o.c., 5/8" plywood sheathing, synthetic roof underlayment, Cool Roof-certified asphalt shingles.
  • Attic: Unvented, vaulted ceilings: 6" R-21 open-cell spray foam on underside of roof deck.
  • Foundation: Slab on grade: R-10 rigid foam at slab edge + under perimeter to 3 ft total.
  • Windows: Double-pane, argon-filled, low-e3, fiberglass-wood frames; U=0.27, SHGC=0.20.
  • Air Sealing: 2.46 ACH50, open-cell spray foam at roof deck and rim joist; all plates, joints, and holes caulked; sill seal; gasket installed between plywood and framing at factory.
  • Ventilation: Dehumidifier with fresh air intake tied to air handler; MERV 13 filter; bath fans.
  • HVAC: Central air-source heat pump, 11 HSPF, 18.5 SEER, AC variable speed compressor.
  • Hot Water: Heat pump water heater, 50-gal, 3.55 UEF.
  • Lighting: 100% LED, 2 solar tubes, 6 clerestory windows.
  • Appliances: ENERGY STAR refrigerator, dishwasher, clothes washer, heat pump dryer, bath fans.
  • Solar: 7.2 kW, rooftop panels, passive solar design.
  • Water Conservation: Low-flow fixtures. Hot water recirc. pump. Drip, predictive irrigation.
  • Energy Management System: PV production and energy use tracking. Wi-Fi connected frig, water heater, oven. Smart thermostat. Water leak detection.
  • Other: EV charging. Accessible doorways, handles, showers, sinks. Borate-treated lumber.

Building Specifications

Conditioned Area 1,288 ft2
Bedrooms 2
Bathrooms 2
Stories 1
Climate Zone 3A
Completion Date March 2021

Modeled Performance

  With PV No PV
HERS Index -21 50
Annual Energy Cost $150.00 $850.00
Annual Energy Cost Savings $1,650.00 $1,000.00
Annual Energy Savings 15,400 kWh 5,700 kWh
First 30 Years Savings $66,200.00 $39,600.00