Resource Library

Phius is hosting the first-ever Phius Foundations Live! event May 29 in Tucson, Arizona, a one-day event designed to bring introductory passive building content to the local community.

Phius Policy Specialist Zoe Rader discusses the basics of state Qualified Allocation Plans and their impact on the adoption of passive building practices.

This blog, reposted from Passive House Massachusetts, explores the impact Massachusetts energy codes have had on housing production in the state.

This edition of the Phius Project Spotlight Series highlights The Pierce at 7 Van Buren, a Phius ZERO multifamily building in the Chicago area.

This blog defines Phius' guidelines for the performance verification of constant air volume devices on projects pursuing Phius Certification.

Phius Certification Manager Haley Harlow and Phius Building Certification Associate Rodrigo Barrios-Piedra answer questions related to the METr energy modeling tool.

Phius Communications Manager Max Lapthorne discusses messaging strategies for introducing passive building to newcomers.

Phius certification team members walk through the METr energy modeling software and answer questions.

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

Phius Co-Founder & Co-Executive Director provides context for Phius' 2025 accomplishments and looks ahead to 2026.