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Project 1529

Habitat 20K Passive House

Opelika, Alabama

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

3A - Warm - Humid
Status

Final Certified
INT. Conditioned Floor Area

819 sq. ft.

Core Project Team

Phius CPHC (Secondary)

Skylar Swinford
Phius CPHC (Lead)

David Bitter
Project Submitter

David Bitter
Primary Reviewer

James Ortega

Project Information

- Building Owner
  
  Ms. Michelle Robinson/Auburn Opelika Habitat for Humanity
- Construction Company
  
  Auburn University 20K Initiative/ Real Life builders, LLC (GC of Record)
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  1
- Number of Stories
  
  1
- Program Version
  
  PHIUS+ 2018
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  819 sq. ft.
- ADD'L Certifications
  
  DOE ZERH, ENERGY STAR for Homes, EPA Indoor airPLUS
- Status
  
  Final Certified
- Design Certification
  
  May 22, 2019
- Final Certification
  
  August 27, 2019
- ASHRAE Climate Zone
  
  3A - Warm - Humid
- Region
  
  Southeast

Performance

- Annual Heating Demand
  
  3.16
- Annual Cooling Demand
  
  10.06
- Peak Heating Load
  
  5.52
- Peak Cooling Load
  
  2.62
- Site Energy Use Index (EUI)
  
  21.08
- Site Energy Use Index (w/Renewables)
  
  13.42
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  5294
- Source Energy (Residential w/Renewables)
  
  3370
- Air Tightness (per enclosure area)
  
  0.01

Enclosure

- Wall 1 Type
  
  Framing with Continuous Insulation
- Wall 1 R-Value
  
  30
- Wall 1 Insulation Type
  
  XPS, Other
- Roof 1 Type
  
  Vented Below Deck
- Roof 1 R-Value
  
  61
- Roof 1 Insulation Type
  
  Cellulose, Other
- Floor Type 1
  
  Slab on Grade
- Floor 1 R-Value
  
  20
- Floor 1 Insulation Type
  
  XPS
- Window Manufacturer 1
  
  Alpen
- Window Product Name 1
  
  Hi-Gain 6 Pro PH+ True Triple
- Whole Window U-Value 1
  
  0.2
- Window Glazing SHGC 1
  
  0.57

Systems & Equipment

- Ventilation System Manufacturer
  
  Renewaire
- Ventilation System Product Name
  
  EV90P
- Ventilation System Layout
  
  Centralized
- Ventilation System Type
  
  ERV
- Sensible Recovery Efficiency
  
  84
- Latent Recovery Efficiency
  
  64
- Measured Ventilation Fan Efficiency
  
  0.6
- Heating System Manufacturer
  
  Mitsubishi
- Heating System Type
  
  Air Source Heat Pump
- Heating System Rating
  
  COP
- Heating System Performance (COP)
  
  4.44
- Cooling System Manufacturer
  
  Mitsubishi
- Cooling System Type
  
  Air Source Heat Pump
- Cooling System Rating
  
  EER
- Hot Water System Manufacturer
  
  AO Smith
- Hot Water System Layout
  
  Centralized
- Hot Water System Type
  
  Heat Pump Water Heater
- Hot Water System Rating
  
  Energy Factor (EF)
- Hot Water System Performance Rating
  
  3.42
- Range Hood Type
  
  Recirculation
- Dryer Type
  
  Non-Vented
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  1838