"The DOE Zero Energy Ready Home is the pathway to decarbonization."
Builder
Key Features
- Walls: 2x6, 24" o.c., panelized, R-24 total: advanced framed. Cavity insulation is either flash and batt 1" open-cell spray foam + R-19 unfaced fiberglass or sprayed-in cellulose. R-3.5 coated OSB sheathing; fiber cement lap siding.
- Roof: Truss gable roof: plywood sheathing, self-adhered underlayment, 30-year architectural shingles, ridge vent, storage "cradle" built into trusses.
- Attic: Vented, 14" R-49 blown-in cellulose.
- Foundation: Unvented crawl space: poured concrete and CMU walls, R-10 EPS on interior, termite inspection strip. Exterior foundation drain. 8-mil poly vapor barrier.
- Windows: Double-pane, argon-filled, low-e2, vinyl frame, U=0.28, SHGC=0.22.
- Air Sealing: 0.67 ACH50. Open-cell foam in rim bands, over top plates, over garage, in cantilevers. Sill gaskets.
- Ventilation: ERV to air handler, MERV 8 or 13 filter. Bath fans humidity sensored.
- HVAC: Central air-source heat pump, 10 HSPF, 19.8 SEER. Ducts in crawl.
- Hot Water: Heat pump water heater, 50-gal, 3.42 COP.
- Lighting: 100% LED, motion sensors, day lighting.
- Appliances: ENERGY STAR dishwashers, clothes washer, clothes dryer, refrigerator.
- Solar: 6.1 kW rooftop panels. Passive solar design.
- Water Conservation: ENERGY STAR WaterSense-certified house, compact plumbing design.
- Energy Management System: Smart home system, PV monitoring system.
- Other: Accessible floor plan, hallways, doorways, showers. Low/no-VOC finishes, flooring.
Building Specifications
| Conditioned Area |
1,869
ft2
|
| Bedrooms |
3
|
| Bathrooms |
2.5
|
| Stories |
1
|
| Climate Zone |
4A
|
| Completion Date |
July 2021
|
Modeled Performance
| |
With PV
|
No PV
|
| HERS Index |
1
|
45
|
| Annual Energy Cost |
$250.00
|
$1,150.00
|
| Annual Energy Cost Savings |
$2,450.00
|
$1,500.00
|
| Annual Energy Savings |
21,300 kWh
|
12,900 kWh
|
| First 30 Years Savings |
$99,400.00
|
$60,000.00
|