Resource Library

Phius Certification Manager Al Mitchell covers how to understand common outputs from WUFI Passive and METr as well as useful optimization tips.

Phius Building Certification Associate Alyssa Fink discusses the first-ever Phius Foundations Live! event that took place May 29, 2026, in Tucson, Arizona.

Guest blogger Connor Malloy breaks down his experience as the first-ever instructor of a Phius Certified Builder training in a college or university.

Phius Certification Manager Al Mitchell recounts his experience as a presenter and attendee at the 2026 Humid Climate Conference in Austin, Texas.

Phius Building Certification Associate Mark Smith dives into the Phius Non-Residential Quality Assurance Workbook.

A regionally focused webinar hosted by representatives of the South and Central Phius Alliance regions that addresses common myths associated with passive building in humid climates.

This calculator should be used to determine lighting inputs in WUFI Passive or METr for non-residential projects and non-residential portions of Mixed-Use projects pursuing Phius Certification.

This edition of the Phius Project Spotlight Series highlights the Betty Greene Apartments building, a multifamily project in Boston, Massachusetts.

Phius Alliance Director Jennie Eber introduces new members of the Phius Alliance Executive Council.

View and download state-specific one-page flyers that highlight Phius-related policy advancements and opportunities.