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December 1 – January 16

Phius Certified Trades Professional - Enclosure Specialist Training | December 2025 & January 2026 | Portland, OR
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Project 1828

Front Street Building 2

Utile

Portland, Maine

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

5A - Cool - Humid
Construction Completion

2022
Status

Certified
INT. Conditioned Floor Area

14173 ft²

Core Project Team

Builder

Adam Routhier
Phius CPHB

Daryl Norton
Phius Certified Verifier

Michael Browne
Phius CPHC (Lead)

Jeff Geisinger
Project Submitter

Jeff Geisinger

Project Information

- Architecture Planning
  
  Utile
- Building Owner
  
  Front Street Redevelopment, LP
- Mechanical Systems Designer
  
  Petersen Engineering, Inc.
- Construction Company
  
  Zachau
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Construction Type
  
  Wood-Frame
- Number of Units
  
  13
- Number of Stories
  
  3
- Program Version
  
  PHIUS+ 2018 CORE
- INT. Conditioned Floor Area
  
  14173 ft²
- Market Category
  
  Affordable Housing
- Status
  
  Certified
- Design Certification
  
  May 18, 2021
- Final Certification
  
  April 21, 2023
- Construction Completion
  
  2022
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  5.15 kBTU/ft².yr
- Annual Cooling Demand
  
  0.9 kBTU/ft².yr
- Peak Heating Load
  
  4.07 kBTU/ft².yr
- Peak Cooling Load
  
  1.82 kBTU/ft².yr
- Site Energy Use Index (EUI)
  
  25.45 kBTU/ft².yr
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  5456 kWh/person.yr
- Air Tightness (per enclosure area)
  
  0.056 CFM50/ft²

Enclosure

- Wall 1 Type
  
  Framing with Continuous Insulation
- Wall 1 R-Value
  
  35
- Wall 1 Insulation Type
  
  Fiberglass, Other
- Roof 1 Type
  
  Unvented Roof
- Roof 1 R-Value
  
  74
- Roof 1 Insulation Type
  
  Other
- Floor Type 1
  
  Slab on Grade
- Floor 1 R-Value
  
  23
- Floor 1 Insulation Type
  
  EPS
- Window Manufacturer 1
  
  Logic
- Whole Window U-Value 1
  
  0.17
- Window Frame Material 1
  
  Unplasticized Polyvinyl Chloride (uPVC)
- Window Glazing SHGC 1
  
  0.37

Systems & Equipment

- Ventilation System Manufacturer
  
  Zehnder
- Ventilation System Product Name
  
  ComfoAir 550 and 200
- Ventilation System Layout
  
  De-Centralized
- Ventilation System Type
  
  HRV
- Sensible Recovery Efficiency
  
  90%