The Phius Certified Builder Certification is for tradespeople and construction professionals with field experience in construction and/or high performance building. This training prepares construction professionals to understand passive building techniques — airtight enclosures, high-performance window installation, passive design strategies, field quality assurance, and site management. For a project pursuing Phius Certification, these professionals ensure the building is built and operating to the plans and specifications. They are responsible for executing air-sealing and thermal bridge mitigation.

This training is intended for Architects and Engineers. CPHCs learn to design to the Phius Certification climate-specific building standard. Projects earning Phius certifications (Phius CORE, Phius ZERO and Phius REVIVE) follow RESNET QA/QC protocols and achieve excellent HERS scores, US Department of Energy Zero Energy Ready Home status, and adhere to EPA indoor airPLUS requirements.

Phius Certified Raters focus on single-family residential projects. The Phius Certified Rater training builds on the foundation and concepts delivered in RESNET HERS Rater training and prepares rating professionals to identify the key components of passive building and understand best practices for testing and inspecting performance in the field. This training is delivered live, online over three days and provides grounding in passive building principles as well as a guide to onsite quality assurance for the Phius Certification program. Each session is three hours. Approximately 8 hours of self-guided material is provided before the first session for review.

With hundreds of green product certifications on the market and persistent greenwashing, it can be difficult for designers to know what kind of impacts the materials they select for a project are having on the health of our climate, ecosystems, communities, and on individuals. But with the introduction of an industry-aligned framework for evaluating sustainable materials, more informed decision making is finally within reach. This course will present the current challenges to measuring holistic product impacts and introduce the Common Materials Framework: a groundbreaking common language for product sustainability - and how to apply it in your practice today.

This is the second session of the Materials Matter: Embodied Carbon & The Path to Healthier Buildings training series. Join the series to explore the connections between climate, human health, and the circular economy—transforming the way we design and build for a better future.