Passive House Podcast
Interviews with the leaders, practitioners, and change-makers in the global Passive House movement. A production of Passive House Accelerator.
Episodes
Building science is at the core of high-performance construction, but it takes more than an understanding of psi-values and hygrothermal dynamics to actually get these buildings built. As we see in this episode, having a real-world understanding of materials science, finance, and how people actually work together is yet another component to this line of work. Granted, there’s still a lot of building science involved, as em...
In this episode of The Passive House Podcast, Zack Semke chats with Nick Nigro of Leggat McCall about the Bunker Hill Housing Redevelopment in Charlestown, Boston, a phased replacement of 42 aging WWII-era public housing buildings into 2,699 mixed-income units. Nick explains how the team committed to Passive House from day one and is using a repeatable “kit of parts”—precast lateral-load-bearing cores, prefabricated load-b...
In this episode of The Passive House Podcast, Mary James chats with Kia Weatherspoon, founder of Determined by Design. Weatherspoon describes how experiences visiting her brother in prison and creating privacy during Air Force deployments shaped her belief that spaces must be felt, not just seen. She explains her mission-driven focus on affordable housing and a design process rooted in ancestry, legacy, and identity, trans...
In this episode of The Passive House Podcast, host Matthew Cutler interviews New Zealand building scientist and sustainability specialist Tavis Creswell-Wells of Ecolution about overheating risk, building performance, and lessons from working in the UK. Tavis describes his path from architecture to building science, early research with BRANZ on the Building Energy End Use Study, and later experience in London with large en...
In this episode of The Passive House Podcast, Jay Fox speaks with Tony Daniels and Caitlin Matusewicz of Cycle Architecture + Planning about their backgrounds in high-performance design and the firm’s focus on scalable multifamily deep energy retrofits, resilience, and Passive House. The conversation covers why retrofits are harder than new construction and how Cycle aims to scale by starting with repeatable retrofit solut...
In this episode of The Passive House Podcast Jay Fox interviews Edie Dillman (co-founder and CEO of B.Public Prefab) and Karen Ramsey (founder and sustainability strategist at Building Wellness) about Fort Collins, Colorado’s Design to 2030 pilot program. They describe B.Public’s panelized, Passive House–standard prefab shell system launched in 2019 and Ramsey’s consulting work supporting Passive House projects, including ...
In this episode of The Passive House Podcast, co-host Jay Fox interviews Heather McKinstry and Shefali Sanghvi of Dattner Architects about their work focusing on Passive House projects, primarily affordable housing in New York City. The discussion delves into Dattner Architects' commitment to civic work, including multifamily housing, transportation, and healthcare projects. They emphasize the benefits of Passive House sta...
In this episode of The Passive House Podcast, host Zack Semke discusses bio-based materials and high-performance buildings with Lindsey Love from Regenerative Building Solutions. They highlight the importance of early phase energy and embodied carbon modeling, integrating natural materials in construction, and the benefits of such materials for building resilience and occupant health. They also discuss the AIA 2030 Commitm...
There’s a lot of building science that goes into making passive buildings extremely durable, efficient, comfortable, and healthy. However, one of the things that often gets overlooked when trying to explain the benefits of Passive House is the experience of actually being in one. There is a certain ineffability associated with the experience that defies easy translation into facts and figures, and this can be especially tr...
In this episode of The Passive House Podcast, Ilka Cassidy and Kristof Irwin discuss with Helena van Vliet the concept of biophilic design and its impact on human wellbeing. Helena explains how designing environments that reconnect humans with nature can optimize physiological energy and reduce stress and inflammation. The conversation delves into practical applications of biophilic design in urban environments, exploring ...
In this episode of The Passive House Podcast Mary James and Jay Fox chat with Carmel Pratt, the new executive director of New York Passive House. They explore Carmel's background in architecture and sustainability, her role at New York Passive House, and her approach to sustainability consulting. Carmel shares the rich history and milestones of New York Passive House, including notable policies, educational initiatives, an...
In this episode of The Passive House Podcast, co-host Mary James discuss Passive House practices with James Petersen, founder of Petersen Engineering. The episode focuses on domestic hot water systems and their electrification, particularly in the context of Passive House standards. Petersen explains the challenges with current technologies, options for heat recovery, and the impact of location-specific energy costs. The c...
In this episode of The Passive House Podcast, Jay Fox interviews Maggie Ullman, a Councilwoman from Asheville, North Carolina. Maggie shares her multifaceted background as a climate advocate, former sustainability director, and leader of a nonprofit network focused on sustainability in the Southeast. She delves into her experience running for office, the impact of Hurricane Helene on Asheville, and the city's recovery effo...
In this episode of the Passive House Podcast, co-hosts Jay Fox and Ilka Cassidy interview Ben Bogie, a third-generation high-performance builder and Director of Outreach and Education at BPC Green Builders. Ben discusses the foundational lessons learned from his family's history in building super-insulated, airtight, thermally broken structures since the 1970s. He shares insights into the evolution of high-performance buil...
In episode fourteen of The Reimagine Edit series of the Passive House Podcast, host Zack Semke shares selected clips of conversations from the Reimagine Collective. Featured speakers in this episode include Beth Campbell, Ryan Abendroth, Mike Fowler, Kevin Brennan, Kara Haggerty Wilson, Nakita Reed, and Michael Ingui.
In addition to specific deep dives into ventilation systems in hot and humid climates, designing for passi...
In this episode of the Passive House Podcast Matthew is joined by Caroline Ashe Brady, Ann Marie Fallon, and Nathan Campbell at the Passive House Association of Ireland Conference held in Belfast. They share their insights on the current state and future of Passive House standards in the UK and Ireland. Discover the driving forces behind the shift towards more reliable carbon data, the importance of policy in advancing sus...
In this Episode of the Passive House Podcast Matthew interviews representatives of Ecological Building Systems, including Niall Crosson, the Group Technical Director, and Neil Turner, the UK Technical Manager. They discuss the company's inception 25 years ago, its growth, and its innovations in bio-based construction and air-tightness solutions. The narrative also details their training programs and market challenges, part...
In episode thirteen of The Reimagine Edit series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Al Mitchell, Kimberly Llewellyn, Greta Tjeltveit, Ya’el Santopinto, Wolfgang Feist, and Lisa White.
This episode is split between two topics. The first addresses one of the most common questions veteran members of the high-performance building community hear from those who are new to the indu...
In this episode of The Passive House Podcast, Mary James interviews James Hartford and Juhee Lee Hartford of River Architects in Hudson Valley. The discussion covers the firm's focus on Passive House projects, mostly single-family homes with a mix of new constructions and retrofits. They touch on their first retrofit project affected by Hurricane Sandy, the evolving client interest in Passive House standards, and the firm’...
In this episode of the Passive House Podcast co-host's Jay and Mary chat with Emily Mottram, founder of Mottram Architecture, about her architectural firm and her passion for building science and low-carbon residential architecture. Emily discusses her firm's focus on retrofits and new builds, explaining their approach to sustainable architecture using eco-friendly, bio-based materials. She shares insights on the complexit...
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