Resource Library

The full list of honorees from the 2026 Phius Passive Projects Design Competition

This calculator is used to determine project-specific performance criteria for Phius 2024 New Construction projects using WUFI Passive. Projects submitted using METr have the criteria calculator built directly into the software.

This estimator may be used to determine a lower temperature reduction factor than the default of 0.95 and the associated additional energy use for attached zones outside of the thermal and airtight envelope that are conditioned to a lower setpoint temperature than the certified portion of the building.

Phius Certification Team member John Loercher offers a behind-the-scenes look at a recent Phius Trades Training class.

Phius Communications Manager Max Lapthorne examines the urgent need for action when it comes to creating healthier buildings in the Southwest and beyond through the lens of the upcoming PhiusCon conference in Phoenix.

This edition of the Phius Project Spotlight Series highlights the Conservatory Apartments in Chicago, Illinois.

Phius Certification Program Director James Ortega fields project questions from Phius Alliance members.

This edition of the Phius Project Spotlight Series highlights The Bank Lofts in Richfield Springs, New York.

Phius Certification Associate John Loercher discusses challenges and solutions for Phius Certification of buildings at elevations above 5,000 feet.

Phius Certification Program Director James Ortega outlines strategies for mitigating thermal bridging on passive building projects.