Resource Library

Phius Building Certification Manager Haley Harlow fields questions on METr geometry.

The METr launch blog provides an overview of the new energy modeling design tool for Phius projects.

Find past versions of the Phius Performance Criteria calculator.

Learn the basics of METr, the new, cloud-based version of WUFI designed and optimized for Phius passive building projects.

Phius Building Scientist & Certification Manager Al Mitchell outlines modeling processes included in the ASHRAE 209 Building Performance Simulation Process standard and how they can be optimized for use on Phius projects.

Phius Certification Program Director James Ortega and Phius Building Certification Associate Rodrigo Barrios-Piedra answer WUFI Passive questions.

The Phius Certification Guidebook is the one-stop-shop for all things related to the Phius project certification program.

This calculator is used to determine project-specific performance criteria for Phius 2024 Certification.

Phius Certified Consultant Trainer Ryan Abendroth answers WUFI Passive questions.

In 2025, a new version of WUFI Passive will be released that includes all Phius CORE 2024 and Phius ZERO 2024 updates. Until then, follow instructions in this document to model your project under either path.