Since 2022, RESNET® has collaborated with Passive House Institute US (Phius) to promote the construction of sustainable and affordable homes. To that end, we want to encourage Certified RESNET HERS® Raters to expand their career and business opportunities by becoming Phius Certified Raters and Phius Certified Verifiers via Phius Certified Rater and Verifier Training. Phius Certified Rater and Verifier training is geared toward professionals with experience testing and commissioning single-family, townhome, and low-rise multifamily buildings. Phius Certified Rater training builds on the foundation and concepts delivered in RESNET HERS Rater training. It prepares rating professionals to identify the key components of passive building and understand best practices for testing and inspecting performance in the field. As a Certified RESNET HERS Rater, this is an opportunity to position yourself on the cutting edge of your field by becoming a Phius QA/QC professional. In addition, much of the Phius training available also qualifies for HERS Rater Professional Development Credits. Phius Calculator Update webinar June 17 Virtual training offerings: WUFI Passive Single-Family Workshop starting June 16 Phius CORE Prescriptive Path Workshop June 18 Phius Certified Builder training starting July 21 WUFI Passive Advanced – Multifamily starting July 24 Intro to THERM workshop starting July 29 For more information, click here.