As building energy codes and performance standards continue to advance across the United States, Phius (Passive House Institute US) has emerged as a leading, climate-specific framework for delivering predictable, low-energy buildings. While Phius is often perceived as restrictive, its performance-based approach actually creates opportunities for design flexibility—particularly when the building enclosure is optimized early.
This session explores the Phius approach to windows and their outsized impact on whole-building energy performance. Attendees will gain a working understanding of how Phius evaluates fenestration using climate-specific targets, energy modeling, and verified performance data, and how high-performance windows can offset other enclosure and system constraints.
Through real-world examples, the presentation demonstrates how thoughtful window selection—across materials, glazing configurations, and installation strategies—can help project teams meet Phius energy targets while supporting architectural intent, constructibility, occupant comfort, and cost optimization.
About the Speaker
Amber Mengede is a seasoned construction and fenestration specialist with over twelve years of experience in the industry. She is currently the Technical Business Development Manager at Cascadia Windows & Doors, where she provides technical guidance and collaborates with architects, building envelope consultants, contractors, clients, and other stakeholders to deliver high-performance fenestration solutions, sound building envelope design, and value-engineered options.
Amber holds a diploma in Architectural Building Engineering Technology from BCIT, graduating with honors. She is passionate about energy-efficient buildings, sustainable design, and supporting the industry through education, collaboration, and knowledge sharing. Amber serves on the Board of Directors of Fenestration Canada and contributes to various industry boards and committees focused on advancing fenestration and construction best practices.
This free presentation will take place on Wednesday, September 23rd at 9am PT / 12pm ET and will be followed by a lively Q+A session. Don't miss this opportunity to learn from an industry leader and engage with the PHA community. See you there!