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- What is Passive Building?
  Your passive building questions, answered
  
  Passive Building
  
  Passive Building Principles
  
  Passive Building FAQs
  
  A Better Way to Zero
- 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
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  Project Certification
  
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- Products
  Phius Certified Products are guaranteed to perform to passive standards
  View Products
  
  Product Certification Overview
  
  Window Certification
  
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- Professionals
  Phius Certified Professionals are on the cutting edge of high-performance building
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  Phius Certified Consultant (CPHC®)
  
  Phius Certified Builder (CPHB)
  
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  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
January 25 – 26

Phius Certified Verifier Training | Boston, MA | January 2024
Get hands-on training experience and become a Phius Verifier
Upcoming Sessions
- WUFI Passive - Single Family | December 2023
  December 5 – 13
- Dec Member Office Hours - Project Questions
  December 12
- Dec Webinar - Office Hours for Everyone
  December 19
- Phius Certified Builder Training and Certification Exam | January 2024
  January 16 – 26
- 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
  
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  Tech Corner

Passive Building
- What is Passive Building?
  Your passive building questions, answered
- Sectors
  Passive isn't just for houses
Certifications
- Projects
  Phius Certified Projects are the most energy efficient and comfortable buildings in the world
  Find a Project
- Products
  Phius Certified Products are guaranteed to perform to passive standards
  View Products
- Professionals
  Phius Certified Professionals are on the cutting edge of high-performance building
  Find a Professional
Standards
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.
Education
Categories
Upcoming Sessions
- WUFI Passive - Single Family | December 2023
  December 5 – 13
- Dec Member Office Hours - Project Questions
  December 12
- Dec Webinar - Office Hours for Everyone
  December 19
- Phius Certified Builder Training and Certification Exam | January 2024
  January 16 – 26
January 25 – 26

Phius Certified Verifier Training | Boston, MA | January 2024
Get hands-on training experience and become a Phius Verifier
Resources
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
- Tools and Support
  Providing the tools you need to create healthier buildings
  Resource Library
About Us
Our People
Phius Alliance

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