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 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
October 24 – 25

Phius Certified Rater Training | Providence, RI | October 2024
Come for the Phius Pro Forum, stay to become a Phius Certified Rater!
Upcoming Sessions
- Phius Certified Builder Exam | Rhode Island | September 2024
  September 20 – October 20
- Phius 2024 Standard Update Part 2
  September 24
- Phius Certified Consultant Training & Certification Exam | September 2024
  September 30 – October 11
- 2024 AIA Philadelphia Home Tours | by Local Architects
  October 5 – 6
- 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 1389

Granite City Housing Authority Duplex Prototype

Granite City, Illinois

Building Function

Multifamily
Project Type

New Construction
ASHRAE Climate Zone

4A - Mixed - Humid
Status

Final Certified
INT. Conditioned Floor Area

1150 sq. ft.

Core Project Team

Phius Certified Verifier

Lindsey Elton
Phius CPHC (Lead)

Tony Holub
Project Submitter

Tony Holub

Project Information

- Architecture Planning
  
  Farr Associates (AOR)
- Building Function
  
  Multifamily
- Project Type
  
  New Construction
- Construction Type
  
  Wood Frame
- Number of Units
  
  2
- Program Version
  
  PHIUS+ 2015
- ADD'L Certification Badges
  
  PHIUS+ Source Zero
- INT. Conditioned Floor Area
  
  1150 sq. ft.
- Status
  
  Final Certified
- Design Certification
  
  October 10, 2016
- Final Certification
  
  March 20, 2019
- ASHRAE Climate Zone
  
  4A - Mixed - Humid
- Region
  
  Midwest

Performance

- Annual Heating Demand
  
  5.17
- Annual Cooling Demand
  
  5.59
- Peak Heating Load
  
  5.15
- Peak Cooling Load
  
  2.51
- Site Energy Use Index (EUI)
  
  25.84
- Site Energy Use Index (w/Renewables)
  
  2.09
- Compliance Software
  
  WUFI Passive
- Source Energy (Residential)
  
  5231
- Air Tightness (per enclosure area)
  
  0.063

Enclosure

Systems & Equipment

- Measured Ventilation Fan Efficiency
  
  0.8
- Heating System Type
  
  Air Source Heat Pump