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December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
Become a Phius Enclosure Specialist!
Upcoming Sessions
- Jan. Webinar: Walking Through METr
  January 13
- Phius Certified Builder Training and Certification Exam | January 2026
  January 20 – 30
- Phius Certified Consultant Training & Certification Exam | January 2026
  January 20 – 30
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  January 20
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Project 2027

Colombini Residence

Christina Griffin

Yorktown, New York

Building Function

Single-Family
Project Type

New Construction
ASHRAE Climate Zone

5A - Cool - Humid
Construction Completion

2023
Status

Certified
INT. Conditioned Floor Area

3586 ft²

Core Project Team

Phius CPHB

Edward Nugent
Phius Certified Rater

Anthony Lisanti
Phius CPHC (Lead)

Christina Griffin
Project Submitter

Christina Griffin

Project Information

- Architecture Planning
  
  Christina Griffin
- Building Function
  
  Single-Family
- Project Type
  
  New Construction
- 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
  
  3586 ft²
- Status
  
  Certified
- Design Certification
  
  July 11, 2023
- Final Certification
  
  August 4, 2023
- Construction Completion
  
  2023
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  8.73 kBTU/ft².yr
- Annual Cooling Demand
  
  1.87 kBTU/ft².yr
- Peak Heating Load
  
  4.75 kBTU/ft².yr
- Peak Cooling Load
  
  2.03 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  12.82 kBTU/ft².yr
- Site Energy Use Index (w/Renewables)
  
  -3.61 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  9430 kWh/person.yr
- HERS Rating
  
  30
- HERS Rating w/Renewables
  
  -9
- Air Tightness (per enclosure area)
  
  0.051 CFM50/ft²

Enclosure

- Wall 1 Type
  
  Framing with Continuous Insulation
- Wall 1 R-Value
  
  57
- Wall 1 Insulation Type
  
  Cellulose, Mineral Wool (Board)
- Wall 2 Type
  
  Exterior Continuous Insulation Only
- Wall 2 R-Value
  
  41
- Wall 2 Insulation Type
  
  EPS
- Roof 1 Type
  
  Vented Above Deck
- Roof 1 R-Value
  
  70
- Roof 1 Insulation Type
  
  Cellulose
- Floor Type 1
  
  Slab on Grade
- Floor 1 R-Value
  
  22
- Floor 1 Insulation Type
  
  EPS
- Window Manufacturer 1
  
  Vetta
- Window Product Name 1
  
  Tilt & Turn Window
- Whole Window U-Value 1
  
  0.17
- Window Glazing SHGC 1
  
  0.49
- Whole Door U-Value
  
  0.12
- Door Frame Material
  
  Wood

Systems & Equipment