Net-Zero Resources

Certification

Net-Zero Ready: Meet all design, construction, and diagnostic testing criteria

Net-Zero Certified: 1 year of online energy tracking with neutral or positive bills

  • Energy Performance
    • Net Zero Energy (site energy), HERs Index: ≤10
    • Minimum HERs Index prior to renewables: 50
  • Diagnostic Testing
    • Infiltration target: 1.5 ACH50
    • Duct leakage: ≤2% leakage to the outside, 10 system airflow capacity leakage
  • Envelope
    • Meet or exceed 2012 IECC criteria including RESNET Grade I installation
    •  Windows
      • U Value: ≤30
      • SHGC: ≤0.27
        • High gain windows for south exposure
  • HVAC/Ductwork
    • Manual J, D, and S
    • All ductwork located within the thermal envelope, mastic
    • Commissioning: Ventilation and HVAC (system airflow, refrigerant charge, room- room pressure ±3 PA)
  • Ventilation
    • Required: 62.2-2010
  • Water Heating
    • WaterSense Indoor Criteria
  • Lights/Appliances
    • 75% CFL and/or LED
    • Energy Star Appliances
  • Renewables
    • Photovoltaic Array, Solar Thermal, and/or Wind Turbine(s)

Find a builder

FIND AN EARTHCRAFT BUILDER IN YOUR AREA