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December 5 – 11

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Project 1863

Fifth Street Passive House

Boise, Idaho

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

5B - Cool - Dry
Status

Final Certified
INT. Conditioned Floor Area

1929 sq. ft.

Core Project Team

Phius Certified Rater

John Reuter
Phius CPHC (Lead)

Skylar Swinford
Project Submitter

Skylar Swinford
Primary Reviewer

Al Mitchell

Project Information

- Architecture Planning
  
  VY Architecture
- Construction Company
  
  King Built
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  1
- Number of Stories
  
  3
- Program Version
  
  PHIUS+ 2018 Source Zero
- ADD'L Certification Badges
  
  PHIUS+ Source Zero
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  1929 sq. ft.
- Status
  
  Final Certified
- Design Certification
  
  June 24, 2021
- Final Certification
  
  September 28, 2022
- ASHRAE Climate Zone
  
  5B - Cool - Dry
- Region
  
  Northwest

Performance

- Annual Heating Demand
  
  7.41
- Annual Cooling Demand
  
  1.64
- Peak Heating Load
  
  4.51
- Peak Cooling Load
  
  1.84
- Site Energy Use Index (EUI)
  
  11.57
- Site Energy Use Index (w/Renewables)
  
  -9.51
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  4579
- Air Tightness (per enclosure area)
  
  0.012

Enclosure

- Wall 1 Type
  
  Exterior Load Bearing Double-Stud
- Wall 1 R-Value
  
  40
- Wall 1 Insulation Type
  
  Cellulose, OCSPF
- Wall 2 Type
  
  All Insulation within Framing
- Wall 2 R-Value
  
  43
- Wall 2 Insulation Type
  
  Other
- Roof 1 Type
  
  Unvented Roof
- Roof 1 R-Value
  
  49
- Roof 1 Insulation Type
  
  Other
- Floor Type 1
  
  Slab on Grade
- Floor 1 R-Value
  
  28
- Floor 1 Insulation Type
  
  CCSPF
- Floor Type 2
  
  Overhang Floor
- Floor 2 R-Value
  
  88
- Floor 2 Insulation Type
  
  CCSPF
- Window Manufacturer 1
  
  GLO
- Window Product Name 1
  
  Fixed
- Whole Window U-Value 1
  
  0.17
- Window Glazing SHGC 1
  
  0.53
- Window Manufacturer 2
  
  GLO
- Window Product Name 2
  
  Operable
- Window Manufacturer 3
  
  GLO
- Window Product Name 3
  
  Lift & Slide

Systems & Equipment

- Ventilation System Manufacturer
  
  Zehnder
- Ventilation System Product Name
  
  Q350 HRV
- Ventilation System Layout
  
  Centralized
- Ventilation System Type
  
  HRV
- Sensible Recovery Efficiency
  
  0.9
- Heating System Manufacturer
  
  MITSUBISHI
- Heating System Product Name
  
  SVZ-KP12NA
- Heating System Type
  
  Air Source Heat Pump
- Heating System Rating
  
  COP
- Heating System Performance (COP)
  
  4.51
- Cooling System Manufacturer
  
  MITSUBISHI
- Cooling System Product Name
  
  SVZ-KP12NA
- Cooling System Type
  
  Air Source Heat Pump
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  11920
- Renewable Energy System Size
  
  8.14