Phius Certified Verifier

Phius Certified Verifiers deliver on-site quality assurance and oversight for large-scale residential and non-residential passive building projects.

Training Schedule

The Role of a Verifier

Phius Certified Verifier training is geared toward professionals with experience testing and commissioning multifamily and non-residential buildings.

For a project pursuing Phius Certification, the Verifier is the 3rd party quality assurance professional responsible for on-site inspections and performance testing throughout the construction process and at final construction.

These professionals are critical to ensure that the building is built and operating to the plans and specifications that are design certified by Phius.

Key Competencies of Phius Certified Verifiers

Building Science

Building Science

Phius professionals learn how controlling moisture, heat, and airflow in buildings define best practices in building design for comfort, efficiency, durability, and air quality.

High Performance Building Enclosures

High Performance Building Enclosures

From moisture control strategies to thermal-bridge-free design strategies, passive building places emphasis on getting the enclosure right. Phius Certified Verifiers inspect the enclosure and quality of insulation installed.

High Performance Mechanical Systems

High Performance Mechanical Systems

Balanced ventilation and high-performance heating, cooling, and domestic hot water systems are critical elements of passive building design. Verifiers must understand how to commission and test high performance equipment.

Large Building Airtightness Testing Strategies

Large Building Airtightness Testing Strategies

An airtight enclosure is cornerstone to passive building. Phius Certified Verifiers understand large building testing protocols and how to inspect and troubleshoot an air control layer in the building enclosure.

Phius Certification Requirements

Phius Certification Requirements

Verifiers are responsible for ensuring the project meets all inspectable, mandatory requirements and have a deep understanding of the Phius Certification program requirements.

Co-Requisite Program Requirements

Co-Requisite Program Requirements

The third party co-requisite programs build the foundation for Phius' set of quality assurance requirements. Verifiers hold the knowledge of these foundational programs for non-residential and multifamily construction projects.

Join the Phius Alliance

Interested in growing your network and knowledge, while advocating for the Phius passive building standard? Find a local chapter near you.