Resource Library

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

The webinar will detail the usage of the Phius Multifamily calculator, so you can accurately account for your internal heat gains, lighting and plug loads. The updated calculator is refined with updated formulas, built-in definitions and guidance, and a new, fresh look.

Energy Modeling has created a clear barrier-to-entry for passive building professionals that may have been insurmountable for many projects in the past. This has prevented the net zero carbon movement from scaling up in the single family residential market, despite widespread interest. The Phius prescriptive path, introduced under the Phius 2021 certification protocol, offers an alternative path to certification which eliminates the barrier-to-entry posed by energy modeling.This presentation reviews the goals and intent of the Phius 2021 prescriptive path as well as step-by-step guidance through the certification checklist.

Webinar hosted by EEBA.

Phius discovered a minor discrepancy related to climate data in the standard-setting process. Therefore, we have published slightly adjusted standard criteria for the performance and prescriptive paths. An overview on the reasoning and results is described in the blog below.

This document outlines the prerequisites and process of becoming a Phius Certified Rater or Phius Certified Verifier, eligibility to inspect and verify Phius projects, and the responsibilities of the Rater/Verifier in the certification of Phius projects.