Resource Library

Phius Building Certification Manager Haley Harlow outlines the significant updates in the latest version of the Phius heat pump performance estimator.

With contributions from a pair of Phius project teams, this blog examines fire resilience considerations in passive projects and the role of Phius design strategies in mitigating fire risk.

A one-page flyer outlining the retrofit options offered by Phius.

Find past versions of the Phius Performance Criteria calculator.

The Phius team suggests some Phius and passive building-related new year's resolutions for 2025.

Phius Certification Team members Isaac Elnecave and Anthony Lisanti break down the requirements for Phius Certified Raters and Verifiers in 2025.

Phius Certification Manager Al Mitchell walks through REVIVEcalc, the modeling tool developed for Phius REVIVE 2024 certification.

This workbook combines the requirements of all of Phius' co-requisite programs and includes all of Phius' quality assurance requirements. It is to be completed by the Phius Certified Rater on the project and submitted fully filled out to Phius for final certification.

The multifamily workbook combines the requirements of all Phius' co-requisite program requirements for Phius Certification and includes all of Phius' quality assurance requirements. It is to be completed by the Phius Certified Verifier on a multifamily project and submitted fully filled out to Phius for final certification.

Below are links to download v24.1.0, v2.2 and v2.3. Read further to determine which applies to your project.

The Phius CORE Prescriptive 2024 Checklist outlines all the detailed requirements of the prescriptive program.