Podcasts about Passive house

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 efforts. Maggie emphasizes the importance of building coalitions, understanding local government roles, and adaptable strategies for sustainability. She also discusses the challenges and successes in disaster recovery, highlighting the community's unity and advocacy at the federal level.Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

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 building methods, the importance of incorporating sound building science techniques, and the challenges of the modern construction industry. Ben also highlights his role in educating builders on high-performance practices through venues like the International Builders Show and expresses concerns about the rapid push towards electrification without comprehensive planning. The conversation covers topics such as the benefits of measuring real-world building performance, changes in insulation materials, the importance of site water management, and the potential impact of AI on the construction industry.https://www.bpcgreenbuilders.com/ Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

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 passive survivability during extreme weather events, and the challenges of marrying historic preservation and high-performance building methods, one theme courses throughout this episode's collection of snippets: The need for collaboration. Construction is a team sport, and a project's success depends on the ability of stakeholders with different sets of priorities to put aside their differences and cooperate. As our speakers note, learning to speak the language of different stakeholder helps to bridge the perceived divide between these priorities. Unrelated, but still exciting, our episode closes on some exciting news out of Massachusetts, where Passive House is booming. To learn more about what's happening in the state after listening to this episode, make sure to check out Cost-Efficient Passive House Delivery: Learning from the Massachusetts Experience by Passive House Massachusetts' Beth Campbell and Alexander Gard-Murray.The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com.

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 sustainability, and the impact of Passive House on education and student housing. Also, learn about the latest developments in energy metrics and building standards in Scotland and the need for integrating sustainable practices in retrofitting buildings. This episode provides a comprehensive look into the progressive strides being made in sustainable construction and the optimistic future envisioned by industry leaders.https://www.linkedin.com/in/ann-marie-fallon-a1baa619/https://www.linkedin.com/in/caroline-ashe-brady/https://www.linkedin.com/in/nathan-campbell-a92b85103/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

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, particularly regarding the advances in air-tightness and mechanical ventilation systems in the UK and Ireland. The episode highlights various sustainable products such as vapor control layers, natural insulation materials like wood fiber and hemp, and decentralized ventilation systems. Emphasis is placed on the educational aspect of their business, targeting both industry professionals and the general public through roadshows and training centers. Lastly, they underscores the importance of sustainable and energy-efficient building practices, reflecting the company's mission and the broader movement towards eco-friendly construction.https://www.ecologicalbuildingsystems.com/https://ukphc.org.uk/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

"The message that passive house is better, just isn't reaching people." We explore what actually happens when passive house ambitions meet the realities of Australian building sites - from the builder's perspective, the architect's challenges, and the client's concerns.Today we're discussing what it means to design and build a passive house with Sven Maxa from Maxa Designs: the learning curves, cost considerations, and collaboration required to bridge the gap between high-performance building theory and practical execution. We break down what changes for builders tackling their first passive house spec, how architects balance performance with design, and what clients need to know before committing to passive house principles.This isn't about chasing certification badges - it's about understanding whether passive house standards can improve building performance without making life harder for everyone involved.Whether you're a builder considering your first passive house project, an architect integrating performance requirements, or a homeowner exploring energy-efficient building options, this conversation reveals the real-world challenges and opportunities of passive house construction in Australia.

Vancouver home prices have fallen for the 8th consecutive month, hitting their lowest level in 33 months. The December data confirms what many have felt for weeks: the market is cooling faster than most anticipated. Sales are slowing, inventory remains elevated, and both developers and institutional investors are feeling the strain. In this week's report, we break down what's driving this latest leg down — from stalled projects and falling rents to REIT dividend cuts, mortgage renewal pressure, and what to expect from the Bank of Canada next week.Let's start with development. One of Vancouver's biggest stories comes from Landa Global Properties, whose two-tower West End project was approved seven years ago but still hasn't broken ground. Originally slated for 129 market rental units and $75 million in community amenity contributions — about $169,000 per home — the proposal has since been reworked to include 51 social housing units, fewer market rentals, and no Passive House certification, in an effort to make the project financially viable. Despite its prime location, the developer says rising costs, high interest rates, and market softness have made the numbers impossible to pencil. It's a stark example of what's happening city-wide: pro-formas no longer work, lenders are pulling back, and the result will be fewer new homes hitting the market in the years ahead.The arrears rate, however, remains surprisingly stable. At 0.24%, it's unchanged month-over-month — meaning 99.76% of mortgages are still being paid on time. Ontario saw a small uptick to 0.25%, but B.C. held steady at 0.21%. Despite six months into the “renewal wall,” Canadians are holding up better than expected. The real stress test arrives in 2026, when nearly one-third of all mortgages will reset at higher rates. Still, arrears remain 32% below their 30-year average, suggesting that for now, borrowers are managing the pressure.An intriguing shift is showing up in the banking data: for the first time in 35 years, the total number of active mortgages is falling — down nearly 2% year-over-year. Normally that number rises 2–5% annually. Some of the decline may stem from mortgage payoffs during the pandemic's liquidity boom, a slowdown in purchases, and the movement of lending to credit unions (which aren't included in the national data). It's another sign that both buyers and lenders are becoming increasingly cautious.Turning to the data, Toronto's prices are down 25% from the 2022 peak, and Vancouver's aren't far behind. December sales in Greater Vancouver fell 22% month-over-month to 1,844 units — the slowest pace in 25 years — and remain 21% below the 10-year average. Inventory dropped 12% from November but still sits 36% above the decade norm. The sales-to-active ratio fell to 13% (9% for detached, 14% for townhomes, 15% for condos).Prices followed suit. The HPI benchmark slipped another 0.3% to $1,123,700 — down 5.5% from  March's annual high — bringing values back to February 2023 levels. Median and average prices also declined, to $950,000 and $1.24 million respectively. _________________________________ Contact Us To Book Your Private Consultation:

To register for our Reimagine Buildings: Best of Retrofit online conference on Friday, December 5, 2025, visit https://passivehouseaccelerator.com/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 industry: How do you get your start? For some, that route may be through the trades. For others, it may be through design. There are also less orthodox pathways, particularly for folks with backgrounds in modeling, data management, or consulting. No matter what your background is, this episode provides some practical advice on beginning a career in high-performance building.The second topic is retrofits, particularly the new Phius REVIVE standard. Guests Lisa White and Al Mitchell, both of Phius, describe the basics of REVIVE and how resilience became the driving rationale behind the standard.The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com

To register for our Reimagine Buildings: Best of Retrofit online conference on Friday, December 5, 2025, visit https://passivehouseaccelerator.com/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's growth from two to ten employees. They discuss the financial and practical challenges of Passive House projects, including material and energy considerations, involvement in advocacy through Passive House Hudson Valley, and the growing demand for such homes. They also highlight the benefits of prefab construction in difficult climates and the importance of builder experience. https://www.riverarchitects.com/Video of River Architects' Bank Lofts retrofit project: https://youtu.be/GHLC2xGM-ykBest of Retrofit: https://events.ringcentral.com/events/reimagine-buildings-retrofit/registrationThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In today's episode of the Build Show Podcast, Matt sits down with builder and colleague Daniel Glauser to dive into the wins and the “oh dangs” from their recent personal home builds. From airtightness strategies and Huber ZIP System successes to HVAC lessons, dehumidification, window packages, design constraints, and why smaller, smarter homes often lead to higher quality—Matt and Daniel get candid about what worked, what they'd change, and what every builder or homeowner should learn before beginning a project.They also explore the realities of renovating versus starting fresh, how Passive House principles shaped Daniel's 1977 retrofit, and why intentional square footage can make or break a budget. Whether you're a builder, a homeowner planning a project, or a building science nerd, this episode is packed with firsthand insights that will help you design and build better. Huge thanks to our episode sponsor, Huber. Learn more at: https://www.huberwood.com  Watch full episodes of Matt on Facebook, Instagram and Build Show Network. https://www.facebook.com/buildshownetworkhttps://www.instagram.com/risingerbuild/https://buildshownetwork.com/go/mattrisinger Don't miss a single episode of Build Show content. Sign up for our newsletter.

To register for our Reimagine Buildings: Best of Retrofit online conference on Friday, December 5, 2025, visit https://passivehouseaccelerator.com/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 complexity and importance of retrofitting existing structures, the challenges and benefits of panelized construction, and the holistic methods she employs to ensure the health and safety of building occupants. https://www.mottramarch.com/Best of Retrofit: https://events.ringcentral.com/events/reimagine-buildings-retrofit/registrationThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

"Even if you finish the build, it's not too late to certify." That's what Emilia Iacovino from Detail Green tells builders who've completed high-performance homes without formal Passive House certification. But should you wait that long? We sit down with Emilia, one of only five Passive House certifiers in Australia, to explore whether certification is just bureaucratic red tape or if it delivers genuine value for builders and clients.Emilia's unconventional path, from architecture aspirations through electrical engineering and automotive work in Japan, gives her unique insight into both the technical requirements and practical realities of achieving Passive House standards in Australian conditions. She reveals common pitfalls that trip up projects, from incorrect climate file selection to inadequate documentation and explains why early design reviews prevent expensive on-site corrections.This conversation unpacks why Passive House focuses on building fabric first rather than just adding solar panels, the adoption challenges facing Australia's building culture and why certification provides accountability that protects both builder reputations and client investments in high-performance homes.LINKS:Connect with Emilia:Website: https://www.detailgreen.com.au/ Connect with us on Instagram: @themindfulbuilderpodConnect with Hamish:Instagram: @sanctumhomesWebsite: www.yoursanctum.com.au/Connect with Matt: Instagram: @carlandconstructionsWebsite: www.carlandconstructions.com/

In this episode of The Passive House Podcast host Mary James meets with Katie Schwamb, Managing Director at Building Energy Exchange (BE-Ex) to  discuss emissions reduction and compliance with Local Law 97 in New York City.  Local Law 97, sets carbon emissions limits for buildings over 25,000 square feet to help achieve near-zero emissions by 2050. Mary and Katie cover the importance of strategic planning, financial incentives, and challenges building owners face in complying with the law. Katie highlights Building Energy Exchange's array of resources aimed at advancing energy-efficient, decarbonized buildings, including case studies, retrofit playbooks, and their Local Law 97 calculator.https://be-exchange.org/Best of Retrofit: https://events.ringcentral.com/events/reimagine-buildings-retrofit/registrationThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of The Passive House Podcast, host Jay Fox talks with Andrea Michael, an architect from Love Schack Architecture in Bozeman, Montana. They discuss Andrea's comprehensive home retrofit, aimed at improving energy efficiency and comfort. The retrofit included air sealing, adding insulation, installing a heat pump, ERVs, solar panels, and more. The conversation highlights Andrea's journey from initial DIY efforts to a full-scale renovation, revealing significant energy savings and improved indoor air quality. The episode also touches on the challenges and successes of integrating sustainable building practices in Montana.https://loveschackarchitecture.com/See Andrea December 5th at Best of Retrofit: https://events.ringcentral.com/events/reimagine-buildings-retrofit/registrationThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In the twelfth episode of The Reimagine Edit series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Jake Bruton, Ben Bogie, Michael Ingui, Ed May, Kristof Irwin, and Ashley Wisse.This episode explores how practitioners across the Reimagine Buildings Collective are evolving the language and practice of high-performance building—shifting the focus toward health, comfort, and durability; tackling the realities of partial retrofits; leveraging modeling for better design decisions; and exploring radiant cooling and geothermal systems. Together, they offer a grounded perspective on how builders and designers can communicate value, raise standards, and accelerate the movement toward better buildings for all.The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com

In this episode of The Passive House Podcast, host Mary James speaks with Kara Haggerty Wilson, Design Director at Onion Flats. Kara discusses the company's focus on scaling up deep energy retrofits. She highlights their journey from initial projects in Pennsylvania to more extensive work in Massachusetts, including the challenges and successes of projects like the 130-year-old Hano Homes retrofit. Kara shares insights on navigating site-built versus panelized solutions, the importance of detailed building scans, and the evolving interest in deep energy retrofits among developers. The conversation also touches on technological advancements and the complexities of integrating new systems into old structures.https://www.onionflats.com/https://passivehouseaccelerator.com/events/101-deep-energy-exterior-retrofits?date=2025-11-05

In this thought-provoking episode with Nathan Kipnis, principal of Kipnis Architecture + Planning and founder of NextHaus Alliance, we dive into the promise of resilient and energy-conscious design. We discuss how the Passive House model is shaping the future of the built environment, the importance of thinking ahead to meet emerging climate challenges, and how Nathan's award-winning projects are setting new standards for endurance and adaptability in architecture. Nathan also shares his journey as a founding member of the AIA's 2030 Commitment Working Group, and how advocacy continues to shape national dialogue around climate action and design excellence.Mentioned in this episode:Kipnis Architecture + PlanningKipnis Architecture + Planning on IGNexthaus AllianceNexthaus Alliance on IGAIA National Committee for Resilience and Disaster Response CommitteeWebinar: Architecture as Environmental Art, Architectural Record x VectorworksHave thoughts or comments to share? Feel free to reach out to MAREDI Design at hello@maredi-design.com

Send us a textIn Episode 49 of The Sustainable Builders Yak, we're joined by Joel Seagren, National Mechanical Ventilation Engineer at Fantech, to unpack the critical (and often overlooked) role of ventilation in high-performance homes.With a background in mechanical engineering, renewable energy, and a Master's in building sustainability, Joel brings decades of experience to this conversation — from consulting on daylight modeling in the early 2000s to becoming a NatHERS assessor and championing heat recovery ventilation (HRV) in Australian homes.This episode covers:The science of air tightness, energy efficiency, and healthy indoor airWhy 6 air changes per hour is a benchmark for installing HRVsThe difference between NatHERS and Passive House modelingThe limitations of relying on window ventilation in Australia's energy codeThe evolving National Construction Code (NCC) requirements around mechanical ventilationThe need for a standardized testing method in high-performance constructionNew Zealand modeling data showing the energy-saving benefits of HRVsWhether you're a builder, architect, or energy consultant, this is a must-listen if you're working on airtight, efficient, and healthy homes in the Australian climate.

This week on the Passive House Podcast we welcome Ben Walsham, the founder and director of ARKATA, based in Brunswick, Victoria. Trained in architecture and now a registered NatHERS Accredited Energy Efficiency Assessor, Ben empowers architects—as well as homeowners, builders, and developers—across Australia to create homes that are not only energy‑efficient, but comfortable, healthy, and resilient With a background in residential architecture and on-site building, Ben witnessed first-hand the pressing need for better performance in homes. This inspired his transition into sustainability consulting and ultimately to launching ARKATA in 2023.ARKATA's mission reflects Ben's philosophy: “Uncover the power of sustainability” through a human‑centered lens, where efficiency measures translate into tangible comfort and wellbeing for occupants.https://www.linkedin.com/in/ben-walsham-104188148/https://linktr.ee/arkata.au 

In this episode of the Passive House Podcast, Ilka Cassidy and Kristof Irwin are at PhiusCon 2025, highlighting key sessions and interviews with industry experts. The conference explored a variety of themes including performance, purpose, and the power of community in the Passive House movement. Key takeaways included insights on air tightness, ventilation, innovative financing models, and the challenges and successes in scaling up Passive House projects. https://www.phius.org/phiusconThank you to Ikon Windows for sponsoring this episode of the Passive House Podcast!  https://www.ikonwindows.com/ Thanks to  Jennie Eber, Tom Bassett-Dilley, Kai Fast, Sayo Okada,  Beth Campbell, Beverly Craig, Kazumasa Tsushima, Daiji Sato, and Alexander Gard-Murray for joining us!Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Podcast, Matthew Cutler Welsh talks with Matthew Crucifix, Director of Development at Stonewater, they discusses the organization's efforts in providing affordable and sustainable housing in the UK. Crucifix outlines Stonewater's expansive reach, managing around 40,000 homes, and their current focus on retrofitting existing homes to improve energy efficiency. Highlighting the financial challenges and solutions, including government grants and their in-house subsidy pot. He also delves into the specifics of their Passive House projects, like Cherry Grove, emphasizing the goal of building homes that are affordable, energy-efficient, and environmentally friendly. The conversation concludes with insights into the future of housing in the UK, stressing the importance of sustainable construction methods and energy resilience.https://www.stonewater.org/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Podcast, Mary James and Ilka Cassidy interview Tony Lisanti, managing director at Integral Building and Design and QA/QC Manager for Phius. The discussion delves into various rating systems for high performance and passive houses, focusing on the HERS rating method, its standards, and applications. Tony explains his extensive experience in the energy and engineering fields and how he provides certification services for numerous federal and state programs. He further details the process of becoming a HERS and Phius rater, emphasizing the importance of early engagement in the project, thorough QA protocols, and consistent communication between designers and raters. The episode also highlights case studies, including a modular senior housing project and a panelized straw system, illustrating the complexities and benefits of these high-performance building standards.https://www.phius.org/https://integralbuilding.com/https://collective.reimaginebuildings.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In the eleventh episode of The Reimagine Edit host Zack Semke strings together some pearls of wisdom from leading Passive House experts across three continents and include Martín Comas, Ed Ettinger, Lindsey Love, Joe Lstiburek, Tomas O'Leary, and Shefali Sanghvi. Each gem is selected from a conversation that took place inside the Reimagine Buildings Collective, either during one of the Reimagine Tuesday interviews or a Friday AMA. Speakers explore how to encourage clients to pursue Passive House certification, how to better condition and dehumidify hot and moist climates, ways to improve kitchen ventilation, some tips for using natural materials, and more!The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com

In this episode of The Passive House Podcast, join Jay Fox and Mary James as they dive deep into sustainable building systems with Greta Tjeltveit, a Building Science Consultant at 4EA Building Science and Board President of Passive House Northwest. Greta shares her inspiring journey from researching post-Katrina rebuilding efforts in high school to her current role, discussing her experiences and insights into the evolving fields of green building, building science, and Passive House design. They also explore topics such as the importance of early testing in Passive House projects, challenges of ventilation systems in the Pacific Northwest, and the impacts of wildfire smoke on indoor air quality. Don't miss this engaging discussion on the latest trends and innovations in sustainable architecture and Passive House certification. Join Greta this Wednesday:  https://passivehouseaccelerator.com/events/101-balanced-ventialtion?date=2025-10-01https://collective.reimaginebuildings.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

This is a crossover episode with the Spring Street Passive House education and advocacy series.How do Passive House enclosure decisions actually happen? There's a stubborn storyline that passive house designs go “too far” and result in a wholly different, and painful, design and construction process. The reality is that designing and building a Passive House is not all the different from building any project. In both cases you are working with a blend of the rigor of building science, the skill and craftsmanship of the construction team, the realities of project specifics like site, climate, budget, and schedule, and the personalities of the people involved. All of this then gets organized and systematized within the context of the Passive House standard of care which simply asks that we do all we can to ensure that a good design translates into long-lasting positive outcomes.Our guest today is Cameron Caja, CPHC. Hearing all he's doing in the industry/world and the level of expertise he brings is an good reminder of the many intelligent caring people working tirelessly and with great resolve in the AEC today. Hearing his intelligence, wisdom and warmth is encouragement not lose sight of the goal of better buildings, and to not lose heart - we can do this.Links from the Episode:Spring Street Passive HouseEarth AdvantagePHIUSPHICameron CajaCameron Caja is the Business Development Manager at Positive Energy, a role that utilizes the skills he gained through diverse cultural landscapes and his passion for sustainable building practices. His story began as a builder's apprentice in high school, laying the foundation for a career marked by a deep appreciation for construction and design.Cameron studied at National Central University in Jhongli, Taiwan, and Soonchoonhyang University in South Korea, to understand how culture, language, and policy can guide development of the built environment. His studies continued in Japan, Thailand, and Russia, delving into the intersections of politics, housing, and food systems. Cameron earned his Masters degree in Education from the University of Arkansas, where he later managed specialized international education programs for the Graduate School.Sustainability, human and environmental health have always been at the heart of Cameron's endeavors. As a licensed residential builder and the owner of Polaris High Performance Homes, he committed that 100% of his projects would at least meet Energy Star, EPA Indoor airPlus, and WaterSense certifications. As one of the first Certified Passive House Consultants in the state of Arkansas, he actively contributes to advancing building standards in Kansas, Oklahoma, Arkansas, and Missouri as the Central Region Representative of the Phius Alliance Council. Cameron's commitment to community service is evident in his roles with the Habitat for Humanity of Washington County Construction Committee, Tri Cycle Farms Food Recovery Program, and the Omni Center for Peace, Justice, and Ecology. These organizations allow him to extend his impact beyond the realm of building science, addressing crucial social issues like homelessness and food insecurity.TeamHosted by Kristof IrwinEdited by Nico MignardiProduced by M. Walker

In this episode of The Passive House Podcast, join Ilka and Jay for their in-depth discussion with the members of the Reimagine Buildings Collective's innovative Summer Labs. The episode showcases the experiences and insights of various industry professionals who participated in these member-led groups. Featuring Paul Heron, Randall Anway, Lauren Shadid, Valerie Amor, Sandra Lester, Fabrizio Maso, Buck Moorehead, Lloyd Alter, Mark Attard, Rainger Pinney, and Mike Fowler.https://collective.reimaginebuildings.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode, we are joined by Attzaz Rashid (Barratt London) and Joel Callow (Beyond Carbon) to talk about Barratt London's move into Passive House.It was a chance to get into what attracted Barratt to developing this Lo-E homes proposition and how they came to feel confident about committing to deliver certified Passive House apartments, the team effort that's been employed to make it work, and the way this change has brought about a renewed enthusiasm for the job in some of the project's participants.It's a really interesting exploration of how the rigour and challenges of Passive House has affected Barratt's approach to high-density building, and how the Passive House approach has come to be recognised as advantageous to Barratt, in all sorts of ways. Finally, the critique of M&E design that's made late on in the episode is not a Barratt critique—as Az makes abundantly clear—this is one founded in Joel's experience of inheriting issues that require Beyond Carbon's expertise for their resolution.Notes from the showAttzaz Rashid on LinkedInJoel Callow on LinkedIn The Barratt London websiteThe Beyond Carbon websiteDistrict heating and passive house - are they compatible? from the pages of Passive House PlusBarratt launches record passive house scheme also from the pages of Passive House Plus**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

We'll discuss the approach and talk with the architect who built Cincinnati's first passive house.

In this episode of The Passive House Podcast, Mary James interviews Az Rashid Head of Design at Barratt London. Az shares details about Barratt London's focus on large-scale, mixed-use, residential-led regeneration projects within London, and their collaboration with Transport for London (TfL) to develop properties near transit lines. He discusses his journey from architecture to his current role and explains Barratt London's recent commitment to building all new homes to Passive House standards, including the anticipated benefits for residents and the environment. The episode covers their methodical approach to training, research, and development to achieve Passive House certification, as well as their plans to begin delivering Passive House homes by 2029.https://www.barratthomes.co.uk/new-homes/london/Reimagine Building Massive Impact (Sept 19): https://events.ringcentral.com/events/reimagine-buildings-massive-passive/registrationhttps://ukphc.org.uk/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Accelerator Podcast, Ilka Cassidy and Mary James are joined by sustainability experts Amy Cornelius, Paul Thompson, and Joe Messier as they delve into a groundbreaking retrofit project in Philadelphia. This six-part demonstration series, hosted by Green Building United, examines a project aligning with the new Phius REVIVE standard and the Living Building Challenge core principles. Listen as they discuss the integration of these standards, the challenges of retrofitting row homes, and the educational impact of their collaborative series. Discover key takeaways, innovative approaches to sustainability, and the surprising synergies between these certification programs. Tune in for an insightful exploration of how theory meets practice in sustainable building retrofits.

Is there a collaboration problem in retrofit within the social housing sector? That was the premise for this conversation with Rafe Bertram, an architect and retrofit expert—appearing in a personal capacity—who was very surprised when I posed the question because he's found collaboration to be a strength in the sector, at least in London.In the end it led to a conversation about what he's learned from the experiences he's had working on retrofits in the social housing sector, in his community, and even doing big flashy Apple stores.The most interesting bit though is the strategy he's using to reduce the cost of retrofit, with his theory of reactive planning. It's an approach that takes a systematic integrated asset management approach and adds strategic opportunism into the mix in a way that enables him to piggyback essential works, like roof replacement, and use them as a catalyst for getting into a building to do the sustainability stuff that's usually a lower priority.Notes from the showRafe Bertram on LinkedinRetrofit Kentish Town The Good Homes Alliance websiteRafe's finance report for the Good Homes Alliance — “The Green Shift – The existing financial incentives for higher environmental performance of new homes” (October 2023) More links to articles about green building, favourable finance, and better valuations:Homebuyers pay a ‘green premium' of up to £40,000 for the most energy efficient properties (September 2021)—Lloyds Banking GroupHalifax includes EPC ratings in maximum lending calculationsHalifax to use EPC rating in affordability calculationsOctopus reducing interest rates for finance capital: 4 criteria = 1.25% discount, 6+ criteria = 2.00% discount**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

On this Design Hive episode, architect Derreck Travis joins us. The Vancouver-based designer talks about trends in career and technical education, designing the Vancouver Community College Centre for Clean Energy & Automotive Innovation, and lessons learned from a pioneering Passive House project. In this episode, you'll learn about:·        Career and Technical Education (CTE) trends·        The new CTE building at Vancouver Community College·        Weaving cultural influences into higher education design ·        Education on display in higher education design·        Lessons learned designing University of Northern British Columbia Wood Innovation Research Laboratory·        What inspires architect Derreck TravisMore Ideas from Stantec Buildings

In this episode of the Passive House Podcast, co-hosts Jay Fox and Mary James speak with Gaelen McKee, Founder of Brooklyn Solar Works. They dive in to the company's origins, current projects, including work with co-ops and commercial buildings, and their plans for expanding into ground-mounted solar installations. Galen also touches on the impacts of tariffs, permits for residential batteries, and the future of whole-home electrification in New York City.https://brooklynsolarworks.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

Architect Kirsty Maguire shares her experience of designing and building her own Passivhaus on a challenging sloping site in Newport-on-Tay, Scotland. Check out the show notes for more information.

In this episode of the Passive House Podcast, Matthew Cutler Welsh interviews Jessica, a high-performance building consultant at Climate Shore in Adelaide. They discuss Jessica's transition from energy efficiency compliance to specializing in high-performance building with a focus on mitigating moisture risks. Jessica emphasizes the importance of proper construction practices and ventilation in preventing mold, touching on the challenges of getting builders and homeowners to adopt better practices. She highlights the relevance of Passive House standards and her involvement in promoting building science in Australia. Jessica is also the founder and co-host of the Build Insite podcast, where she explores building science, performance-based design, and practical strategies to deliver healthier, more efficient homes. Her expertise encompasses blower door testing, NHERS compliance, condensation risk modelling, and navigating NCC‑2022 regulations—all aimed at improving standards in residential and commercial construction.https://www.linkedin.com/in/jessica-allen-esd/https://www.climasure.com.au/https://www.endurobuilders.com.au/https://building-sciology-poddie.podcastpage.io/?v=lfcmhttps://www.instagram.com/building.sciology/https://www.instagram.com/building.sciology/https://www.tiktok.com/@building.sociologyThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

This episode is all about case study in circularity and a group of people turning waste into useful materials for the built environment. Daniel Dinizo and Charmaine Cu-Unjieng of NaturLoop are bringing a new bio-based product to market that transforms waste coconut husk into a material that's something between MDF and a particle board.For us, this presented a chance to talk about how sustainable materials are developed, the challenges of bringing them to market and how responsible businesses can approach supply chain development (the big challenge now). As professionals who work with LCAs, EPDs, and carbon calcs all the time it was refreshing to get into a product that will have an impact that can be accounted for in human terms, as well as the usual economic and environmental terms. They're also fundraising right now, so here's the pitch from Charmaine.NaturLoop at the Final Stage of Pre-Seed Funding"NaturLoop, the Swiss–Philippine climate-tech startup behind Cocoboard, is at the final stage of its pre-seed round. Cocoboard is the first industry-ready fibreboard made entirely from coconut husk waste and natural adhesives—a truly biocircular material. Featured at Interzum Cologne 2025, Cocoboard embodies the shift in construction and furniture toward biocircularity—no longer a trend but the future of materials. Europe's sustainable furniture market is set to more than double to $42.6 bn by 2032, with consumers paying around 10% more for sustainable products. NaturLoop is closing its round soon, inviting strategic investors to co-build a climate-positive business that reduces deforestation and uplifts poor coconut farmers—making the industry more future-proof."Notes from the showCharmaine Cu-Unjieng on LinkedinDaniel Dinizo on Linkedin NaturLoop on Linkedin The NaturLoop websiteA short film about Cocoboard®An investor CTA from CharmaineAn example of Cocoboard in use as a speaker box for a Schwab System**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive Hosue Podcast, Zack Semke welcomes Michael Quast, the new CEO of Passive House Canada. Michael shares his diverse background in construction, business development, and media, emphasizing his passion for sustainable building. They discuss Michael's journey to Passive House Canada, his experience with straw bale construction, and his focus on fostering collaboration and breaking down silos within the sustainability sector. This episode highlights the importance of engaging both the building community and consumers to promote high-performance, energy-efficient buildings. https://www.passivehousecanada.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.https://passivehouseaccelerator.com/articles/passive-house-helping-shape-state-energy-codeshttps://passivehouseaccelerator.com/podcast/passive-house-podcast-ep-36-robyn-wark-bc-hydrohttps://passivehouseaccelerator.com/podcast/passive-house-podcast-encore-ep-robyn-wark-bc-hydro

Hello! This is Episode 368, and it’s Part 2 of my conversation with HOME Method members, Jan and Landon, who are currently building a passive house home for themselves in Sydney’s north. In this episode, we’re diving into a few key updates, starting with their Granny Flat and how its design and construction are coming together. We also discuss interior design selections, and some challenging stormwater issues they’re needing to resolve. [For all resources mentioned in this podcast and a free, downloadable PDF transcript, head to www.undercoverarchitect.com/368] If you haven’t listened to Part 1 of my conversation with Jan and Landon in the last episode, head back to Episode 367 to hear more. You can find that at www.undercoverarchitect.com/367 Jan and Landon first appeared on the podcast in Episodes 338 and 339 to introduce us to their project, so those episodes are there for you to hear more about their journey and where it all began. In this episode, we also chat through a few specific things they’re navigating right now, and I share some suggestions on what their next best steps might be. You’ll hear us talk about how they’re working with their hydrologist and builder to figure out a stormwater solution for a pretty tricky site. We discuss the process of choosing an Interior Designer and building confidence around making selections, especially for kitchen and bathroom finishes. Jan’s been feeling a bit unsure here, so we spent some time talking it through and helping her move forward with more ease. And we also talk about their Granny Flat in terms of airtightness, blower door testing, and what might be possible even though the intention is not to get it certified at Passive House standards. We also talk about white paint, and ALL.THE.CHOICES. there … and which one is my preferred. It’s another great episode if you’re wondering what it looks like to move forward with clarity, even when there are still lots of decisions to make. Remember, if you’d like to grab a full transcript of this episode, you can find that by heading to www.undercoverarchitect.com/368. Now, let’s dive in! RESOURCES MENTIONED IN THIS PODCAST: For links, images and resources mentioned in this podcast, head to >>> www.undercoverarchitect.com/368 Accessing my free '44 Ways' E-Book will simplify sustainability and help you create a healthy, low tox and sustainable home. You can download your free copy here >>> https://undercoverarchitect.com/ways Access the support and guidance you need to be confident and empowered when designing, renovating or building your future home inside my signature online program, HOME Method >>> https://undercoverarchitect.com/courses/the-home-method/ Just a reminder: All content on this podcast is provided by Undercover Architect for reference purposes and as general guidance. It does not take into account specific circumstances and should not be relied on in that way. You should seek independent verification or advice before relying on this content in any circumstances, including but not limited to circumstances where loss or damage may result. The views and opinions of any guests on the podcast are solely their own. They may not reflect the views of Undercover Architect. Undercover Architect endeavours to publish content that is accurate at the time it is published, but does not accept responsibility for content that may or has become inaccurate over time. See omnystudio.com/listener for privacy information.

Sally Godber, a Director at WARM consultancy explains why reducing the risks on her own Passivhaus project was so important, what that entailed and how it enabled her to deliver a healthy, comfortable and energy-efficient home on budget. Check out the show notes for more information.

In this episode we are exploring the relationship between financial institutions and the built environment in relation to sustainability, building performance and mitigating climate change with Ian Bhullar and Ronnell Reffell from UK Finance, the UK financial sector's membership organisation.The episode itself was prompted by a report that UK Finance published in relation to the incoming UK Government's own Warm Homes Plan: Greening Homes, Creating Growth: Unlocking demand for green home finance. Its recommendations will be familiar to anyone who has been working in the green building sector but it's notable because these arguments and demands are being presented by the banks and lenders.For us this presented an opportunity to find out what the finance sector is actually thinking about how to address the demands of the built environment in relation to climate change and the financial risk that comes with it. Most importantly, they're serious about the matter—this is not ESG-style fluff, they know they need to draw in expertise from built environment professional and they want to know what people like you think.Notes from the showIan Bhullar on LinkedinRonnell Reffell on Linkedin The UK Finance website The report itself—Greening Homes, Creating Growth: Unlocking demand for green home finance**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this podcast, and it's quite a lot of work, so we have to promote the day jobs.Follow us on the Zero Ambitions LinkedIn page (we still don't have a proper website)Jeff and Dan about Zero Ambitions Partners (the consultancy) for help with positioning and communications strategy, customer/user research and engagement strategy, carbon calculations and EPDs – we're up to all sortsSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd Alter's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Retrofit Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Hello! This is Episode 367, and in it, I’m speaking with HOME Method members, Jan and Landon, about their new home and granny flat that they’re building as a Passive House in Sydney’s north. Jan and Landon have specific goals for their project. They’re both in their 70s, so they’re considering how they can age in place well, as well as create a home that’s in alignment with their sustainability and lifestyle goals. [For all resources mentioned in this podcast and a free, downloadable PDF transcript, head to www.undercoverarchitect.com/367] Jan and Landon were first on the podcast back in Episodes 338 and 339, where we learned about them selling their home of 39 years, to move to a different part of Sydney, and to a site that’s been in Landon’s family for over 70 years. They’re retired teachers so they’re amazing learners and have really embraced their project preparation and management with a fantastic, proactive methodology using the content of HOME Method. This is their first project of this scale, and it’s incredibly exciting they’ve moved to the house on the neighbouring lot to where they are building, and work has started on site for their project. The last time we caught up, we discussed how they found their team, and how they set up a collaborative process with their architect and builder, and got going on their design process. We discussed the priorities for their design, and the qualities of the site, and we also talked about how their builder uses a particular pre-fab panel method to construct a passive house. If you haven’t heard the first part of Jan and Landon’s project journey in those episodes, I’d highly recommend checking them out. You can find them at www.undercoverarchitect.com/338 and www.undercoverarchtiect.com/339. In this episode, we catch up on how they’ve travelled with their design, their budget, and how the collaboration has continued on their project. You’ll get to hear how their team has worked together, what their role has been, and what’s surprised and what’s challenged them along the way. It’s a fantastic opportunity to hear about their project progress as we go into all the details in this update. Remember, if you’d like to grab a full transcript of this episode, you can find that by heading to www.undercoverarchitect.com/367. Now, let’s dive in! RESOURCES MENTIONED IN THIS PODCAST: For links, images and resources mentioned in this podcast, head to >>> www.undercoverarchitect.com/367 Accessing my free '44 Ways' E-Book will simplify sustainability and help you create a healthy, low tox and sustainable home. You can download your free copy here >>> https://undercoverarchitect.com/ways Access the support and guidance you need to be confident and empowered when designing, renovating or building your future home inside my signature online program, HOME Method >>> https://undercoverarchitect.com/courses/the-home-method/ Just a reminder: All content on this podcast is provided by Undercover Architect for reference purposes and as general guidance. It does not take into account specific circumstances and should not be relied on in that way. You should seek independent verification or advice before relying on this content in any circumstances, including but not limited to circumstances where loss or damage may result. The views and opinions of any guests on the podcast are solely their own. They may not reflect the views of Undercover Architect. Undercover Architect endeavours to publish content that is accurate at the time it is published, but does not accept responsibility for content that may or has become inaccurate over time.See omnystudio.com/listener for privacy information.

In this episode of The Passive House Podcast, Mary James interviews Stephen O'Shea, head of Sustainable Construction at Carin Homes. Steven discusses the company's focus on large-scale residential projects, their commitment to Passive House standards, and the significant benefits for residents. He shares his journey from architecture to sustainable design, training strategies for implementing these standards, and the ecological measures taken on building sites. The episode also covers the need for public education on Passive House and previews an upcoming conference in collaboration with the Passive House Trust.https://www.cairnhomes.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this tenth episode of The Reimagine Edit, host Zack Semke weaves together insights from a month of dynamic conversations inside the Reimagine Buildings Collective—including AMAs and Reimagine Tuesday interviews. From practical moisture control strategies to the latest in embodied carbon policy, from the efficiencies unlocked by design-build to the evolving role of materials in Passive House, this episode showcases a spectrum of expertise shaping climate-ready buildings. Tune in for perspectives from Cameron Kaja, Jacob Racusim, Josh Salinger, Jesse Thompson, and  Melissa Furukawa, and get inspired by a community working together to raise the bar for performance, resilience, and impact. The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com

Kim and Juta Cinco are Baseline Design named after Baseline Road, a landmark road in Boulder County that marks the Earth's 40th parallel north. They took inspiration from this line of latitude for how rooted in place and foundational it is. The husband-and-wife team have recently designed and completed their first passive house in the Marshall Fire rebuild and are working on their second and third. I wanted to learn about the design process and how it may differ when striving to achieve passive house certification. Our conversation reconfirms that setting performance goals, developing design constraints, having integrated designmeetings with the construction team, and understanding the base building science are all key metrics to better ensure a successful project.Kim Cinco on LinkedInBaseline DesignHammerWell

Andy Mitchell, Managing Director of 21 Degrees, explains what factors influence human comfort and how we have tried to make our homes more comfortable through the years. Embracing building physics has been a turning point and while we have the knowledge and skills to create healthy and comfortable homes today, it's still not the default approach. So Andy outlines the options available to get yourself into a better home. Check out the show notes for more information.

In this episode of the Passive House Podcast, Matthew Cutler Welsh sits down with Arthur Lee to discuss his background in architecture and his work in promoting energy-efficient buildings in New Zealand. Arthur shares his experience with passive house design at Tim Green Architects and his current role at Queenstown Lakes Community Housing Trust. Lee highlights the trust's mission to provide affordable, high-quality housing with a focus on energy efficiency, detailing their incremental improvements and the importance of sustainable design.https://www.qlcht.org.nz/Sian Taylor's appearances:https://passivehouseaccelerator.com/podcast/passive-house-podcast-ep-25-sian-taylor-team-green-architectshttps://passivehouseaccelerator.com/articles/threepwood-passive-house-sian-taylorThank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode, Matthew shares a compilation of voices from the recent THRIVE 25 Passivhaus Conference held in MelbourneAlex Slater Alex is the founder of Building Physics Pty Ltd, where he combines deep technical expertise with a passion for climate-responsive design. With a background in engineering and years of experience in thermal and hygrothermal simulation, Alex is committed to improving building performance across Australia's diverse climates. His work supports architects, builders, and certifiers in delivering Passive House and low-energy buildings that excel in comfort and resilience.

In this episode of the Passive House Podcast Jay Fox talks with Ace McCarlton of New Frameworks about building with straw-insulated prefab panels, creating inclusive workspaces in the trades, and launching the Seed Collaborative to scale low-carbon construction through shared knowledge and collective action.https://www.newframeworks.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this episode of the Passive House Podcast, Mary James speaks with Barry McCarron, Managing Director of Kore Retrofit, about Ireland's bold retrofit efforts and Passive House leadership. Barry traces his journey from building the world's largest Passive House Premium project to leading cutting-edge retrofit initiatives through Kore's one-stop shop model. He shares insights into his PhD research on radon in certified Passive House buildings, the significance of airtightness and ventilation, and Ireland's ambitious retrofit targets. https://www.koreretrofit.com/Thank you for listening to the Passive House Podcast! To learn more about Passive House and to stay abreast of our latest programming, visit passivehouseaccelerator.com. And please join us at one of our Passive House Accelerator LIVE! zoom gatherings on Wednesdays.

In this ninth episode of The Reimagine Edit, host Zack Semke weaves together insights from the Reimagine Buildings 25 conference and a month of rich conversations inside the Reimagine Buildings Collective—including AMAs, Reimagine Tuesday interviews, and the post-conference after party. From the growing momentum behind high-performance prefab to timeless lessons in quality craftsmanship, scale, and impact, this episode captures the spirit of a community pushing forward together. Tune in for voices from across the industry sharing what it means to build better—at every level.The Reimagine Edit is a special series of the Passive House Podcast that shares curated insights from our Experts-In-Residence at the Reimagine Buildings Collective, our membership community of building professionals stepping up to tackle climate change. Learn more about the Reimagine Buildings Collective at https://www.reimaginebuildings.com