Resource Library

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 v2.2 and v2.3, read further to determine which applies to your project.

The window comfort and condensation risk criterion applies to all projects, regardless of size. Use the calculator below to determine the requirements to ensure comfort and minimize condensation risk for your project.

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.