Join us for a clear, practical introduction to balanced ventilation in passive house and high-performance building projects. We’ll be joined by Greta Tjeltveit, building science consultant at 4EA Building Science, who will share her extensive experience in multifamily passive building design, site review, and performance testing. This session covers what balanced ventilation is, why it’s essential for comfort, health, and energy efficiency, and how it works. You’ll explore the most common ventilation configurations in multifamily buildings, including unit-by-unit, floor-by-floor, and stacked zonal systems, and understand how design decisions affect performance and maintenance. We’ll also highlight commissioning best practices and common mistakes so your systems deliver on passive building standards while keeping operations efficient and tenants comfortable.

Key Takeaways:

• Understand how HRVs and ERVs function to provide healthy indoor air while minimizing energy use.

• Compare common multifamily ventilation configurations and how layout decisions impact maintenance, accessibility, and performance.

• Learn best practices for commissioning balanced ventilation systems and avoiding common pitfalls.

• Apply design considerations to optimize indoor air quality, comfort, and energy efficiency while coordinating with other building trades.

Greta Tjeltveit is a building science consultant at 4EA Building Science with extensive experience in passive building design, site review, and performance testing of multifamily enclosures and ventilation systems.

This free presentation will take place on Wednesday, October 1st 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!