Quality Assurance: The Backbone of Phius Certification

You don't have to take our word for it -- quality is verified every step of the way.

3rd Party Quality Assurance Professionals

Phius provides two professional credential training programs for QA/QC professionals.

Phius Certified Rater Training Program

This program focuses on single-family residential projects. The course is geared toward experienced RESNET professionals, provides a foundation in passive building principles as well as a guide to on-site quality assurance for the Phius Certification program. The training is open to all who wish to attend, while there are pre-requisites to take the professional certification exam.

Learn more about the Rater Training Program

Phius Certified Verifier Training Program

This program focuses on non-residential and larger scale multifamily projects. The course is geared toward commissioning professionals, provides a foundation in passive building principles as well as a guide to on-site quality assurance for the Phius Certification program. The training is open to all who wish to attend, while there are pre-requisites to take the professional certification exam.

Learn more about the Verifier Training Program
quality assurance and quality control

Quality assurance happens on paper; quality control is executed in the field during construction.

The Phius Project Certification program is the only passive building certification that integrates a third party quality assurance/quality control (QA/QC) requirement. QA/QC is critical to achieving the Phius Standard because airtightness and superinsulation require particular attention to detail through design and construction.
Project Certification Overview