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- What is Passive Building?
  Your passive building questions, answered
  
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  Passive isn't just for houses
  
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- Professionals
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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
May 29

Phius Foundations Live! Passive Building in the Southwest
New introductory Phius event coming to Tucson May 29!
Upcoming Sessions
- Phius Certified Rater Training | April 2026
  April 7 – 8
- Phius Project Certification Workshop | April 2026
  April 8
- April Webinar: Climate and Weather Data
  April 14
- South and Central Region Webinar: Passive Building Myth Busting
  April 15
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
  
  Financial Incentives
  
  Codes
  
  Qualified Allocation Plans
  
  Cost Data
- Tools and Support
  Providing the tools you need to create healthier buildings
  Resource Library
  
  Certification Support
  
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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
- Phius Certified Rater Training | April 2026
  April 7 – 8
- Phius Project Certification Workshop | April 2026
  April 8
- April Webinar: Climate and Weather Data
  April 14
- South and Central Region Webinar: Passive Building Myth Busting
  April 15
May 29

Phius Foundations Live! Passive Building in the Southwest
New introductory Phius event coming to Tucson May 29!
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
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Upcoming events

Jun 23 2026

Live Virtual Session Training

Intro to THERM | June 2026

Sayo Okada

T W 6:00 - 9:00 P / W 6:00 - 9:00 P Eastern 10 CEU

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