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- What is Passive Building?
  Your passive building questions, answered
  
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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
February 6 – 11

WUFI Passive - Single Family | February 2025
Breeze through your next single-family WUFI model with this workshop
Upcoming Sessions
- Dec Webinar: Rater and Verifier Updates
  December 17
- Phius Certified Consultant Design Exam | December 2024
  December 20 – January 19
- Phius Certified Consultant Training & Certification Exam | Wentworth Institute of Technology | Spring 2025
  January 7 – April 30
- Phius Certified Builder Training and Certification Exam | January 2025
  January 13 – 24
- Policy Work
  Promoting policies designed to grow passive building
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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
- Dec Webinar: Rater and Verifier Updates
  December 17
- Phius Certified Consultant Design Exam | December 2024
  December 20 – January 19
- Phius Certified Consultant Training & Certification Exam | Wentworth Institute of Technology | Spring 2025
  January 7 – April 30
- Phius Certified Builder Training and Certification Exam | January 2025
  January 13 – 24
February 6 – 11

WUFI Passive - Single Family | February 2025
Breeze through your next single-family WUFI model with this workshop
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
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