Skip to main content

- What is Passive Building?
  Your passive building questions, answered
  
  Passive Building
  
  Passive Building Principles
  
  Passive Building FAQs
  
  A Better Way to Zero
  
  Passive Building Foundations Training
- Sectors
  Passive isn't just for houses
  
  Single-Family
  
  Multifamily
  
  Office Buildings
  
  Schools
  
  Other Non-Residential
- Projects
  Phius Certified Projects are the most energy efficient and comfortable buildings in the world
  Find a Project
  
  Project Certification
  
  Submit a Project
  
  Certification Review Queue
- Products
  Phius Certified Products are guaranteed to perform to passive standards
  View Products
  
  Product Certification Overview
  
  Window Certification
  
  Panel Certification
- Professionals
  Phius Certified Professionals are on the cutting edge of high-performance building
  Find a Professional
  
  Phius Certified Consultant (CPHC®)
  
  Phius Certified Builder (CPHB)
  
  Phius Certified Rater
  
  Phius Certified Verifier
  
  Phius Certified Trades Professional
  
  Phius Associate
  
  Maintain Credentials
Our Approach
- New Construction
  Phius CORE and Phius ZERO provide the path for constructing a Phius building from the ground up.
- Retrofit
  Upgrade existing buildings to Phius standards using Phius CORE REVIVE and Phius ZERO REVIVE.
- Commercial
  Phius standards aren't just for residential buildings. Phius CORE COMM and Phius ZERO COMM can be applied to any non-residential building.
Categories
December 5 – 11

Intro to THERM | December 2024
Master thermal bridging with our THERM workshop!
Upcoming Sessions
- Phius Certified Builder Training and Certification Exam | December 2024
  December 2 – 13
- Annual Alliance Member Meeting
  December 3
- Intro to THERM | December 2024
  December 5 – 11
- Phius Certified Consultant Training & Certification Exam | December 2024
  December 9 – 20
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
  
  Incentives
  
  Codes
  
  Qualified Allocation Plans
  
  Cost Data
- Tools and Support
  Providing the tools you need to create healthier buildings
  Resource Library
  
  Certification Support
  
  Calculators and Protocols
  
  Feasibility Study
  
  WUFI Passive Design Tool
  
  Climate Data
  
  Quality Assurance
  
  Tech Corner

Project 1898

Northborough Maintenance Facilities DCAMM

Northborough, Massachusetts

Building Function

Office
Project Type

New Construction
ASHRAE Climate Zone

5A - Cool - Humid
Status

Final Certified
INT. Conditioned Floor Area

2796 sq. ft.

Core Project Team

Phius Certified Verifier

Ethan Clifford
Phius CPHC (Lead)

Maciej Konieczny
Project Submitter

Maciej Konieczny

Project Information

- Architecture Planning
  
  EDM
- Building Owner
  
  Dept of Capital Asset Management & Maintenance
- Mechanical Systems Designer
  
  EDM
- Construction Company
  
  GVW, Inc.
- Building Function
  
  Office
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  1
- Number of Stories
  
  1
- Program Version
  
  Phius ZERO 2021
- All Electric
  
  Yes
- INT. Conditioned Floor Area
  
  2796 sq. ft.
- Status
  
  Final Certified
- Design Certification
  
  April 8, 2022
- Final Certification
  
  November 15, 2024
- ASHRAE Climate Zone
  
  5A - Cool - Humid
- Region
  
  Northeast

Performance

- Annual Heating Demand
  
  7.43
- Annual Cooling Demand
  
  2.78
- Peak Heating Load
  
  5.43
- Peak Cooling Load
  
  1.62
- Site Energy Use Index (EUI)
  
  19.95
- Site Energy Use Index (w/Renewables)
  
  -9.68
- Compliance Software
  
  WUFI Passive
- Source Energy (Non-Residential)
  
  35.92
- Air Tightness (per enclosure area)
  
  0.055

Enclosure

- Wall 1 Type
  
  Framing with Continuous Insulation
- Wall 1 R-Value
  
  43
- Wall 1 Insulation Type
  
  Mineral Wool (Board), Cellulose
- Roof 1 Type
  
  Unvented Roof
- Roof 1 R-Value
  
  63
- Roof 1 Insulation Type
  
  EPS, Other
- Floor Type 1
  
  Slab on Grade
- Floor 1 R-Value
  
  18
- Floor 1 Insulation Type
  
  EPS
- Window Manufacturer 1
  
  Pella
- Window Product Name 1
  
  Supera - Casement
- Whole Window U-Value 1
  
  0.19
- Window Glazing SHGC 1
  
  0.39
- Window Product Name 2
  
  Supera - Fixed
- Whole Window U-Value 2
  
  0.15
- Window Glazing SHGC 2
  
  0.39
- Door Manufacturer
  
  Kawneer
- Door Product Name
  
  AA 250
- Whole Door U-Value
  
  0.5

Systems & Equipment

- Ventilation System Manufacturer
  
  Ventacity
- Ventilation System Layout
  
  De-Centralized
- Ventilation System Type
  
  ERV
- Sensible Recovery Efficiency
  
  70
- Measured Ventilation Fan Efficiency
  
  1.48
- Heating System Manufacturer
  
  Intertek
- Heating System Type
  
  Ground Source Heat Pump
- Heating System Rating
  
  COP
- Heating System Performance (COP)
  
  3.1
- Cooling System Manufacturer
  
  Intertek
- Hot Water System Manufacturer
  
  EEMAX
- Hot Water System Layout
  
  Centralized
- Hot Water System Type
  
  Tankless Electric Water Heater
- Renewable Energy Type(s)
  
  On-Site PV
- Renewable Energy Annual Production
  
  24285
- Renewable Energy System Size
  
  20.16