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- What is Passive Building?
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May 8 – 14

Phius Certified Verifier Training | Boston, MA | May 2025
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- Phius Certified Builder Training and Certification Exam | April 2025
  March 31 – April 11
- Phius Certified Consultant Training & Certification Exam | April 2025
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  April 2 – 11
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  April 8
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Passive Building
- What is Passive Building?
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  Passive isn't just for houses
Certifications
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  Phius Certified Projects are the most energy efficient and comfortable buildings in the world
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  View Products
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  Phius Certified Professionals are on the cutting edge of high-performance building
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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.
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Categories
Upcoming Sessions
- Phius Certified Builder Training and Certification Exam | April 2025
  March 31 – April 11
- Phius Certified Consultant Training & Certification Exam | April 2025
  March 31 – April 10
- Phius Certified Rater Training | April 2025
  April 2 – 11
- Apr. Webinar: Case Study
  April 8
May 8 – 14

Phius Certified Verifier Training | Boston, MA | May 2025
Receive hands-on Phius Certified Verifier Training in Boston!
Resources
- Policy Work
  Promoting policies designed to grow passive building
  Policy Database
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Building Detail

Foundation
Wall
Wall-to-Floor
Wall-to-Roof
Wall-to-Wall Corner Plan
Window Head
Window Jamb
Window Sill

Construction Type

Autoclaved Aerated Concrete (AAC)
Heavy Timber
Insulated Concrete Form (ICF)
Masonry
Precast Concrete Insulated Panels
Steel
Wood Frame

Insulation

Closed-Cell Spray Foam
Dense Pack Cellulose
EPS Rigid Board
Fiberglass
Mineral Fiber Semi Rigid
Mineral Wool
XPS Rigid Board

Project Type

Addition
New Construction
Retrofit

Building Function

Single-Family
Multifamily
Mixed-Use
School / Education
Office
Dormitory
Government / Public
Hotel
Other Non-Residential

ASHRAE Climate Zones

2A - Hot - Humid
6B - Cool - Dry
7A - Very Cold - Humid
7B - Very Cold - Dry
2B - Hot - Dry
3A - Warm - Humid
3B - Warm - Dry
3C - Warm - Marine
4A - Mixed - Humid
4C - Mixed - Marine
5A - Cool - Humid
5B - Cool - Dry
5C - Cool - Marine
6A - Cool - Humid
6B - Cool - Dry
7 - Very Cold

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