Podcasts about passivhaus

In this episode of the Passive House Podcast Architect Nat Madson and structural engineer Lauren Piepho of HGA join us to talk about Barry Mills Hall and the John and Lile Gibbons Center for Arctic Studies—Bowdoin College's first mass timber buildings and the first of their kind in Maine. They share the story behind the design and construction, from early ideas sparked by the college's pine-filled campus and carbon neutrality goals, to navigating mass timber systems, embodied carbon, and the buildings' architectural dialogue with campus history.Barry Mills Hall and the John and Lile Gibbons Center for Arctic Studies: https://hga.com/projects/bowdoin-college-barry-mills-hall-and-center-for-arctic-studies/Bowdoin College's case study of the project: https://www.bowdoin.edu/news/2020/pdf/furthering-mass-timber-construction---hga---consigli---bowdoin-college-22.pdfThank 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 hosts Mary James and Jay Fox sit down with Vincent Bergeron, an architect with Equipe A Architects in Quebec, to explore The Monarch—a groundbreaking social housing project in Sherbrooke. With 134 units guaranteed affordable for 35 years, this high-rise development is notable not only for its scale but for its ambitious pivot toward Passive House principles. Van shares how a tight timeline, a challenging site, and a collaborative team led to innovative choices in prefabrication, envelope design, and energy efficiency. Hear how a late-stage decision to pursue Passive House certification helped shape a healthier, more resilient living environment for low-income families, all while keeping costs in check.https://equipea.ca/

In this seventh episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Jessica Grove Smith (Joint Managing Director of Passive House Institute), Mark Attard, Rainger Pinney, John Loercher, Galen Staengl, Mike Fowler, Cait Eggers, Sean Velez, Nidhi Shaw, and Lloyd Alter.Quotes:"Walking off the ferry in Seattle and ashes falling out of the sky—that changes your perspective. The same thing with the heat dome and with COVID. These events over the last seven to eight years have reshaped how I think and approach design and architecture, and now my focus is on resilience." — Mike Fowler"If you touch any one single component, make sure you go all the way. That's the only way you're going to future-proof your building and have a long-lasting carbon emission impact." — Jessica Grove-Smith"It's very clear that what typologies get built follow where there's grant money. Developers are happy to build anything as long as it comes with a little extra funding—that's a powerful lever we can use to shape the built environment." — Rainger Pinney"In Passive House buildings, humidity changes very slowly. That just observation applies in any climate—you're less affected because the air isn't running through your building like it does in most buildings." — Galen Staengl"We should be retrofitting schools rather than demolishing them. Roofs, windows, and wall cladding can be replaced; we don't need to demolish the whole school to make it better." — Nidhi ShahThe 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.comThank 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 we are joined by Mark Anderson a Registered Master Builder, Licensed Building Practitioner, and Certified Passive House Tradesperson based in Wanaka, New Zealand. Mark founded MA Building in 2013, driven by a commitment to craftsmanship, sustainability, and innovation in residential construction. Growing up on building sites alongside his father, Mark developed a deep respect for the trade, which he now channels into creating high-performance, architecturally designed homes. His passion for Passive House principles stems from a desire to build healthier, more energy-efficient homes for future generations. Connect with Mark Anderson:Website: mabuilding.co.nzInstagram: @mabuilding_wanakaPHINZ Directory: M A Building WanakaResources Mentioned:MA Building Blog: Why I Chose Passive Homes: The Real StoryPassive House Institute New Zealand: passivehouse.nz

This week on the Passive House Podcast, Jay and Mary welcome Shannon Pendleton, of Source 2050 and Sanderson Sustainable Design, to share her insights from the massive International Builders Show (IBS) in Las Vegas. From electrification trends to American-made high-performance windows, Shannon breaks down where the building industry is headed and how Source 2050 fits into the evolving landscape of sustainable building.Source 2050 - https://source2050.com/What is Good Wood?(article) - https://passivehouseaccelerator.com/articles/what-is-good-wood-form-follows-forestRB25 - https://passivehouseaccelerator.com/events/reimagine-buildings-2

Toby Cambray talks about the risks associated with moisture in buildings, and the modelling techniques – like WUFI® – that can be used to assess those risks. Check out the show notes for more information.

This episode is a window into the consumer side of domestic retrofit that's full of lessons for everyone involved in the retrofit sector. We speak with retrofit influencer Judith Leary Joyce about the experience of undergoing a deep retrofit and learning how to communicate about the subject with normal people. She talks us through her journey from building an extension during the pandemic to getting deep into retrofit and eventually becoming an unlikely retrofit influencer.Whether you work in a domestic, commercial, or industrial setting the nature and needs of normal people will remain the same, so this is an episode full of lessons and insights for anyone  for anyone involved in domestic retrofit about:- how to speak with normal people- how to learn how to do better (TLDR: listen to yourself, or get someone to listen to you to check whether you're baffling your customers)- how to think about their needs and understand their perspectives- how to inspire them and inform them better prior to a projectShe's also got some fascinating insights about when people are likely to be able or willing to listen to someone talking about building performance and taking on new ideasNotes from the showJudith on LinkedInJudith on InstagramJudith on FacebookJudith on TwitterJudith on LinktreeJudith's Eco Renovation Home websiteBeginner's Guide to Eco Renovation: Understand the Basics and the Best Questions to Ask by Judith Leary Joyce (I couldn't find a properly independent bookshop stocking it)**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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 Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, Mary James and Jay Fox dive into passive leisure centers and indoor pool design with Jessica Grove-Smith, Senior Scientist and Joint Managing Director of the Passive House Institute. Jessica shares the story of how PHI began exploring high-humidity building typologies, the unique challenges of designing ultra-efficient recreation centers, and the lessons learned from pioneering projects in Germany and the UK—like the groundbreaking St. Sidwell's Point. From airtightness to evaporation reduction, this is Passive House design at its most dynamic.https://passivehouse.com/

In this sixth episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Carmel Pratt (Massive Passive AMA); Graham Irwin and Silas Patlove (Duck Curve Friday AMA); Lloyd Alter (Sufficiency First AMA); Sara Kudra, Bev Craig, Rainger Pinney, Kristof Irwin, and Alexander Gard-Murray (BuildingEnergy Boston Recap); Ilka Cassidy and Greg Leskien (PH Panelization AMA); and Andrew Peel (Passive House Modeling AMA). 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.comThank 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 sits down with Hugh Pearce, architect and Passive House lead at the UK-based firm Architype. Known for trailblazing sustainable educational design, Architype is behind landmark projects like the UK's first Passive House secondary school. Hugh shares insights into the London Docks Secondary School—an ambitious, airtight, biodiversity-rich oasis in the heart of London's urban density. Tune in for a deep dive into Passive House design for schools.https://www.architype.co.uk/

Send us a textDiscover how Passivhaus is reshaping the standard of affordable housing in the UK and why it's more achievable than many think. In this episode of the Thrive in Construction Podcast, Darren sits down with Emma Osmunden, a trailblazer in sustainable housing, to explore her journey pioneering Passivhaus developments in the UK. With over 15 years of experience, Emma shares how she went from initial scepticism to leading the delivery of some of the country's first certified Passivhaus social homes. Emma reveals the challenges she faced navigating local government, her creative strategies to get support for her bold ideas, and how she built trust with contractors and consultants to make Passivhaus the new standard. She discusses the importance of designing homes with both climate resilience and occupant wellbeing in mind, touching on building biology, air quality, mental health, and long-term energy performance. Throughout the conversation, Emma emphasises the value of creating a culture of responsibility without blame on construction sites, and how quality assurance and collaboration can lead to life-changing results for residents. With a growing number of local authorities now following suit, this episode is packed with insights for anyone passionate about the future of sustainable construction. Links:Emma's LinkedIn: https://www.linkedin.com/in/emma-osmundsen-ab51a5b9/Ealing Council: https://www.ealing.gov.uk/site/Darren: darrenevans.komi.io

Mike Whitfield shares his experience of running a local construction company that specialises in Passivhaus. He explains how the business is structured, and what tasks are tackled on a daily and weekly basis. Check out the show notes for more information.

In this episode of the Passive House Podcast Ilka is at McGill University for the Reconstruct Workshop, a workshop bringing together students, researchers, and industry leaders to tackle the future of deep energy retrofits. Ilka sits down with emerging voices from architecture and engineering to unpack prefab innovation, the Single Integrated Manufacturing (SIM) model, and real-world pilot projects aimed at decarbonizing existing buildings. It's a behind-the-scenes look at how the next generation is shaping retrofit strategies that are scalable, sustainable, and socially impactful.https://aeechair.research.mcgill.ca/en/initiatives/the-reconstruct-initiative

Returning champions Richard O'Hegarty and Oliver Kinnane join us to discuss a recently co-authored paper: Understanding the embodied carbon credentials of modern methods of construction (MMC).Get ready for a long meandering discussion that gets into what they learned and what they think about accounting practices for embodied carbon, as well as plenty of chatter about MMC and why we hate the term (but not what it is).Notes from the showRichard O'Hegarty on LinkedInOliver Kinnane on LinkedInA link to Richard's post about the paper and a link to Jeff's comment The paper itself: Understanding the embodied carbon credentials of modern methods of construction Their UCD webpage That Compromised insulation paper (**warning, sadly paywalled but check it if you can**)RKD's website The RKD and Hibernia Real Estate-produced paper: Understanding Net Zero Commercial Real Estate ZAP 8 May 2023: How should we calculate carbon and how long should a building last? With Dr Oliver Kinnane and Dr Richard O'Hegarty of University College Dublin ZAP 1 May 2023: MMC is value engineering that should benefit everyone, with Emma Elston and Amandeep Singh Kalra of Be First Regeneration**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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 Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast Matthew Cutler-Welsh sits down with Joseph Lyth an Associate Registered Architect, Certified Passive House Designer based in New Zealand. Joesph walks Matthew through his decision to build a passive house to create a healthier environment for his family.  Believing that healthier, lower energy and affordable buildings are possible for everyone in New Zealand, at standard budgets. Lower Saddle Passive House Tāhekeroa: https://nzgbc.org.nz/case-studies/lower-saddle-passive-house-t%C4%81hekeroa

Mike Eliason talks about his book, Building for People, and the massive opportunity we have to create better places through being more intentional and thoughtful. Check out the show notes for more information.

In this special episode of the Passive House Podcast Ilka Cassidy is joined by Kristoff Irwin of Positive Energy at NESEA's BuildingEnergy Boston '25.Ilka and Kristoff are joined by the following inspiring speakers and organizers of NESEA 25:Jacob Deva Racusin, New Frameworks Natural Design/BuildAndrew Himes, Carbon Leadership ForumLaura Bailey, Vermont Council On Rural DevelopmentHeather Ferrell, Prism Design LabThey dive in to the conferences main take aways, lessons learned, and calls to action.Speaker links:https://www.newframeworks.com/https://carbonleadershipforum.org/https://www.vtrural.org/https://www.prismdesignlab.org/https://positiveenergy.pro/https://positiveenergy.pro/building-science-podcastIlkas call to action resources:https://www.echo-project.info/https://www.greencommons.net/peer-networkshttps://www.climateheritage.org/https://www.mep2040.org/https://nesea.org/about-buildingenergy-bottom-lineshttp://massdesigngroup.org/work/research/bio-based-materials-collectivehttps://www.buildersforclimateaction.org/https://se2050.org/

In this fifth episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Ryan Abendroth (how to get into PH consulting), Michael Ingui (how to sell Passive Hosue), Kristof Irwin (paradigms in high performance building), and Tom Bassett-Dilley (retrofits and embodied carbon).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.comThank 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.

For this episode we were joined by Nathan Gambling. For those that are new to him, he's heating engineer of some repute, a renowned educator, and a fellow podcaster.  The episode revolves around the nature of education and learning, the skills gap—specifically focusing on heat pump and retrofit education—and a post that Nathan put up a few weeks ago about an educational experiment he tried out that led to us thinking about the purpose of education.In essence, the episode is about how people learn and how this should shape our approach to meeting the skills gap. Nathan is a great communicator and you should check his podcast.Notes from the showNathan Gambling on LinkedInBetaTalk - The Renewable Energy and Low Carbon Heating PodcastNathan's recent LinkedIn post about his teaching experiment Nathan's old LinkedIn repost about that weird arrangement of radiators That Gatsby report we talk about: Closing the Retrofit GapBetaTalk episode: How boiler engineers transition to heat pumps**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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 Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, Mary James and Jay Fox sit down with Tonje Wold-Switzer, Executive Director of the Santa Cruz County Long Term Recovery Group. Tonje shares her personal journey of losing her home, navigating the recovery process, and advocating for fire-resilient, sustainable rebuilding solutions—including Passive House design. Tune in for insights on disaster response,  and how communities can prepare for future wildfires.How This Family Rebuilt Their Home Stronger after Wild Fire video: https://youtu.be/becjK7WMNXASanta Cruz County Long Term Recovery Group: https://www.santacruzcountyca.gov/OR3/Recovery/LongTermRecoveryGroup.aspx

In this episode of the Passive House Podcast, we welcome Barry Cope, Group Managing Director of the Building Compliance Testers Association (BCTA). Barry shares insights into airtightness testing, certification, and how the UK became a leader in 100% blower door testing for new buildings. He discusses the role of ATTMA, the evolution of the industry, and how airtightness impacts building performance, moisture control, and energy efficiency. The Building Performance Hub: https://www.bcta.group/tbph/The Building Performance Hub Podcast: https://www.bcta.group/tbph/tbph-podcasts/

This time around we're talking about the UK Net Zero Carbon Buildings Standard (UKNZCBS) with three of its architects: Jess Hrivnak (RIBA), Jane Anderson (ConstructionLCA), and Julie Jodefroy (CIBSE).The UKNZCBS is the first cross-industry standard for net zero carbon-aligned buildings, albeit in a pilot form. The standard has been developed to enable stakeholders to prove whether a building aligns with the UK's carbon and energy budgets by providing a single, agreed methodology for defining what ‘net zero carbon' means for buildings in the UK.This probably won't be the only episode we'll produce on the subject and we'll be watching its progress with great interest.  Notes from the showThe UK Net Zero Carbon Buildings Standard websiteThe UK Net Zero Carbon Buildings Standard on LinkedInJess Hrivnak on LinkedInJane Anderson on LinkedIn Julie Godefroy on LinkedInA Passive House Plus article about UKNZCBSA story about the greenest Sainsbury's ever**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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 Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this episode of the Passive House Podcast, Matthew Cutler-Welsh sits down with Kirstie Wulf of Shelter Building Design. Based in Australia's Blue Mountains, Kirstie shares how she built her own hempcrete home, the benefits of this natural material, and how it stands up to fire, floods, and extreme weather. If you're curious about sustainable building, passive house principles, or just love a great career change story, this one's for you!https://shelterbuildingdesign.com.au/

In this fourth episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Andrew Michler (fire hardening), Tim Lock (designing beyond Passive House), Ed May (modeling), and Michelle Jacobson and Maria Lomanto (healthy interiors).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.comThank 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, we sit down with Chef Chris Galarza—founder of Forward Dining Solutions, co-founder of EcoChef, and author of Understanding the Green Industrial Revolution—to explore the powerful intersection of food, sustainability, and energy efficiency. Chris shares his journey from skeptic to advocate for kitchen electrification, highlighting how induction cooking transforms commercial kitchens by improving air quality, reducing costs, and boosting efficiency. We dive into his groundbreaking cooking demonstration for the U.S. Congress, the hidden economics of electrified kitchens, and how chefs can lead the charge toward a more responsible and sustainable future.https://forwarddiningsolutions.com/ecochef

In this episode of the Passive House Podcast, Mary James and Ilka Cassidy sit down with Michael Marsh, Principal of Sidekick Architecture in Los Angeles. Michael shares his journey into architecture and Passive House design, discusses the challenges of promoting energy efficiency in California's mild climate, and explores the intersection of fire-resistant construction and sustainable building. From innovative ADUs to rebuilding fire-damaged homes, Michael provides insights on designing for the future while balancing aesthetics, cost, and performance.https://sidekickarchitects.com/home-1

Last year the Royal Institution of Chartered Surveyors (RICS) released its residential retrofit standard. Given that they're one of the construction industry's oldest, largest, and most influential institutions this felt significant.Importantly, the RICS organisation has a global footprint, so it has the potential to influence good behaviour far and wide. We're also hopeful in light of the success of the RICS Whole Life Carbon Assessment standard. That is in terms of its apparent impact, adoption, and reach.In order to get into the subject a bit more we invited Paul Bagust (Head of Property Standards), Steven Lees (Senior Specialist - Residential Survey), and Robert Toomey (Senior Public Affairs Officer) to join us to talk about the standard and the impact they want to see it have.Notes from the showPaul Bagust on LinkedInSteven Lees on LinkedIn Robert Toomey on LinkedInThe old Passive House Plus article about the Preston retrofit catastrophe that Jeff mentionsThe RICS consumer guide to energy will be here once it's published (one for the listeners of the future) The website for Scotland's Green Home Festival – details for 2025 are incoming**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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 Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

In this third episode of The Reimagine Edit (TRE) series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Skylar Swinford (modeling); Ed May, Lois Arena, and Marine Sanchez (Passive House consulting); and Mary James and Steve Quarles (fire resilience).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.comThank 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.

Chris Brookman from Back to Earth explains what wood fibre insulation is, how it could be used on a project and why careful specification is required. Check out the show notes for more information.

In this episode of the Passive House Podcast, we chat with Nick Sowden of Sowden Building Solutions about the electrification of homes in Sydney, the shift away from gas, and deep energy retrofits. Nick shares insights on insulation upgrades, solar adoption, and how heritage homes can be transformed into high-performance, energy-efficient spaces. Plus, we discuss Australia's growing incentives for electrification and why the transition to clean energy is becoming easier than ever.https://www.sowdenbuildingsolutions.com.au/

In this episode of the Passive House Podcast Ilka Cassidy and Mary James sit down for part 2 of their deconstruction roundtable with Megan Stringer of Holmes, Eric Law of Urban Machine, and Katrina Lund & Imani Hamilton of Ramboll.In Part 2 of our series, we dive deeper into the role of structural engineering in deconstruction and material reuse. They discuss overcoming industry hesitations, innovative connection technologies, and real-world applications of design for deconstruction. And also explore Urban Machine's groundbreaking robotics, which automate lumber reclamation, making reused materials more accessible and cost-competitive.https://www.ramboll.com/https://www.holmes.us/https://urbanmachine.build/https://www.allforreuse.org/ecosystem-map

In this second episode of The Reimagine Edit series of the Passive House Podcast, host Zack Semke shares selected clips of insights from Dan Whitmore of Blackbird Builders and Sara Bayer of Magnusson Architecture and Planning.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.comThank 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 bonus episode of the Passive House Podcast, Zack introduces Reimagine Buildings News, our sister podcast and the official podcast of the Reimagine Buildings Collective: https://www.reimaginebuildings.com/ Like what you hear? Please subscribe to Reimagine Buildings News on your favorite platform: Apple Podcasts: https://podcasts.apple.com/us/podcast/reimagine-buildings-news/id1792737989 Spotify: https://open.spotify.com/show/2pLTH73E07EZl8C8OrwIT3 Amazon Music: https://music.amazon.com/podcasts/25040100-6ca2-46ca-bd1c-7ec4cf7c6e32/reimagine-buildings-news YouTube: https://www.youtube.com/playlist?list=PLPa_Ba3MrSNvo7SHFzysnpHeKfoA4GjU7 Is your favorite platform not listed above? Search for the Reimagine Buildings News channel and you'll likely find it. It's everywhere!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.

Can we address the decarbonisation of homes by focusing on health? That's the mission that Jenny Danson has set for herself in establishing Healthy Homes Hub, and it's a question that manages to subvert Betteridge's Law of headlines, too.  Healthy Homes Hub is a network, built around an online platform, that's dedicated to transforming the way people experience social housing, and its environmental impact, by creating healthier housing environments. Comprising a series of eight dedicated hubs that cover everything from policy and finance, to retrofit and air quality, the platform enable easy access to important information, insights, and thought leadership.Jenny has over 25 years of experience in social housing, as a supplier and client-side, driving innovation, delivery and improving lives so she knows what she's talking about.The project was borne of a frustration with seeing time and effort wasted as people across the sector carry out the same kinds of work, repeatedly, starting from scratch when they could share resources and pool experience. In a sector where capacity is in short supply this time could be easily put to better use.We talk through the challenges faced by the sector and how a focus on people and health can be used to drive us towards delivering on decarbonisation targets, but train our attention on outcomes for the people living in the 'building assets' not just the performance of the fabric and technology that comprises their home.While it's explicitly aimed at the social housing sector, the platform offers a wealth of information resources and sharing of experience that could be useful far beyond the provision of social housing.Notes from the showThe Healthy Homes Hub websiteJenny on LinkedIn Healthy Homes Hub on LinkedInOperational excellence in social housing - a roundtable readout Those ventilation papers that Jeff mentionedVentilation and Indoor Air Quality in Part F 2006 Homes (BD 2702) by S. McKay, D. Ross, I. Mawditt, and S. Kirk (2010)Occupant Interactions and Effectiveness of Natural Ventilation Strategies in Contemporary New Housing in Scotland, UK by Tim Sharpe, Paul Farren, Stirling Howieson, Paul Tuohy, Jonathan McQuillan**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Florence Collier, founder of Humblebee, takes us step-by-step through the deep retrofit of her 1970s home. She explains the costs relating to each measure and the cumulative total as the project advances. Check out the show notes for more information.

Joining us on Zero Ambitions this week is Chris Carus co-founder of Loco Home Retrofit, a Glasgow-based 'emerging one-step shop'.Loco Home Retrofit is a retrofit operation that's most interesting for its approach to developing a viable retrofit offer, focused on building trust in communities and with its supply chain as a means to catalysing the decarbonisation of our homes (or at least Glasgow's homes). And now, they're hiring, seeking to fill three positions (below) so if you know of anyone suitable please share the ads:Marketing and community engagement manager Technical manager Innovation programme managerAs much as anything else, we love how they think about the retrofit challenge. Their considered approach to building a proposition and a method is what has really sold us, possibly because it resonates with our UX-focused approach to everything, but mainly because it seems to make sense.Notes from the showThe Loco Home Retrofit websiteChris on LinkedIn Loco Home Retrofit on LinkedInAll three job ads, againChris's interview with BE-ST after winning the Gamechanger award at the Accelerate to Zero Awards 2023Designing an ‘optimal' domestic retrofit programme by Aaron Gillich et al (2017) – The paper Chris couldn't remember the name forLoco Home Retrofit's 2023/24 impact report detailing their innovation efforts to dateResearch Report - The right time for heat pumps in retrofit (Alan Clarke for Passive House Trust) – the other paper that Chris and Jeff reference**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

The first episode of January 2025 marks the long overdue, first appearance of Jay Stuart, a long-time friend and colleague of Jeff and a firm fixture of the green building scene in Ireland. Jay joined us to talk about his latest project: Loop Your Spare. It's a SaaS platform designed to match 'spare' construction materials with projects that need them on other sites before they have a chance to be classified as waste. It's a concept that could largely eliminate the concept of waste and minimise the need for recycling in construction by enabling materials to remain in their highest-value states, thus retaining their value and mitigating the need to put them through all of the (ultimately destructive) processes involved in recycling. While we're looking to Ireland in this specific case the issues are universal and the solutions should be able to cross borders with relative ease. It's really an episode about smart thinking, with specific reference to a bunch of the projects Jay has worked on in the past and what's coming up in the future.We've wanted to get Jay on for ages because he's an innovative and unconventional thinker who simplifies complex challenges in accessible and unexpected ways. He's also massively experienced, having lectured at University College Dublin's School of Architecture, worked with leading Irish construction businesses like Ecofix and D/RES, and worked as a government advisor to name just a few things.Also, it's an episode that continues the conversations from last year's episodes with Chris Clarke and Don't Waste Buildings and their calls to do something about egregious construction waste in the UK.Notes from the showThe Loop Your Spare website Jay Stuart on LinkedIn Loop Your Spare on LinkedInEmail Loop Your Spare here**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

What's it like trying to scale a retrofit start-up? This episode welcomes Max Bloomfield and Alex Whitcroft, two of the folks from VundaHaus, to talk about their product, its ongoing design and development, and their preparations to scale the business as they raise funds from investors.VundaHaus designs and manufactures a rapid-fit insulation solution for external wall insulation (EWI) of residential homes. It's a a sophisticated off-site, MMC, insulation jigsaw that's been developed to make the logistics of installation much easier than traditional EWI.There's more to the story but you can listen to that on the episode.Notes from the showThe VundaHaus website The KIN website Max Bloomfield on LinkedIn; email Max hereAlex Whitcroft on LinkedIn; email Alex hereThe TransformER project **SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Robin Clevett follows up his recent look into Passivhaus construction with Mike Whitfield & Finley Simpson from MW Construction. Mike has completed over 25 Passivhaus projects and Finley has joined him four years ago, with a scope to take on the business in the near future. They discuss the challenges, the enjoyable aspects of Passivhaus builds, why it might be worth looking into a specialism and what the future holds of Passivhaus builds here in the UK

This week's episode is all about the lessons learned in carrying out a low-carbon retrofit. Natalie Black (Enbee Architecture + Design) and Toby McLean (Allt Environmental Structural Engineers) joined us to talk through their experiments and experiences on the renovation of a derelict house in Muswell Hill, London that was shortlisted for the Architects Journal Retrofit and Reuse awards this year.This is a project that could easily be misrepresented as a Grand Designs-style endeavour that's only representative of what you can do if you've got loads of capital and capacity, but that wouldn't be fair. This project should really be seen as an example of what you can achieve when you've got loads of capital and the capacity to experiment. The lessons learned here aren't going to solve the housing crisis but they can contribute to resolving the climate crisis, and this is what's motivating our guests. Like many of our listeners, Natalie and Toby are built environment professionals who have become increasingly driven to change how they work by the dawning realisation that the climate crisis is upon us. We also discuss whether you can actually have a low-carbon basement.Links for the PhD applications are below too.Notes from the showNatalie Black on LinkedIn The Muswell Hill low-carbon houseThe Enbee Architecture + Design websiteThe Allt Environmental Structural Engineers' websiteNatalie's LinkedIn post about low-carbon basementsEnbee's 12-minute diary film about the Muswell Hill projectEnbee's short film (under 2 mins) about the Muswell Hill projectNatalie's blog about her workPhD #1 - Balancing Supply and Demand: Developing a Net Zero Energy Framework for Difficult-to-Retrofit Buildings in NottinghamshireNottingham Trent University deadline 8th Dec, start Apr 2025, Led by: Dr Orla Williams (UoN), Co-Supervisors: Dr Kate Simpson (NTU) and Prof Richard Bull (NTU); Community Supervisor(s): Phil Berrill (Nottinghamshire County Council), Chris Beattie (Inspire)PhD #2 - Sustainable Construction UK: Investigating the UK construction industry's culture in relation to meeting long-term social, economic and environmental goalsNottingham Trent University, deadline 14th Feb, start Sep 2025, led by Prof Gavin Killip and Dr Ani RaidenPhD #3 - Re-imagining energy retrofit and home adaptation to deliver safe and resilient homes during interconnected energy, health, housing and climate crisesNottingham Trent University, deadline 14th Feb, start Sep 2025, led by myself with Dr Penelope Siebert and Prof Rowena Hill**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Robin Clevett is joined by Tabitha Binding from the Passivhaus Trust to discuss getting into Passivhaus and why it could be a great opportunity for Carpenters and Joiners. Tabitha and Robin talk about the training, the materials, construction methods, sustainability and more

Our guest, Liz Male has been on our radar for a while. She is a figure who has been working in the construction sector since the 1990s, an ally to the sustainability sector, a great communicator, and an experienced thinker.When we met earlier in the year we talked about a lot of things, but the consistent theme of our conversation was 'why we need to tell better stories about the built environment'. That said, we kept our powder as dry as we could and moved on to discuss when we might be able to get her onto the podcast to talk about it from the ZAP platform.We get a lot into the chat. Of particular interest is the historical perspective that Liz can offer. A lot has changed since Koyoto Hope you enjoy it as much as we did.Notes from the showLiz Male on LinkedInLiz Male Consulting Ltd website (LMC) websiteLMC on LinkedInNational Energy Foundation**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Apologies for the delay, the lost podcast has been returned and is ready for release.'Don't Waste Buildings' should be a straightforward proposition. It seems obvious. Especially so in the face of the climate crisis. Unfortunately, the business of the built environment is not yet on board completely. Our guests for this episode are the founders of UK-based campaign group Don't Waste Buildings, Will Hurst (Architects Journal) Leanne Tritton (Ing Media), and Richard Nelson (Abyss Global).They're a group who are seeking to remedy this challenge by pressuring government and persuading business to both do better. They're doing some really interesting work and they're new, so they need support.Please note: the graphic we refer can be found here (about 15 minutes in). I'll update this reference with a link to the Passive House Plus article once it's published. Notes from the showDon't Waste Buildings on LinkedIn (the best starting point)The Don't Waste Buildings holding page (a proper website is imminent, so keep an eye on www.dontwastebuildings.com)Will Hurst on LinkedInLeanne Tritton on LinkedInRichard Nelson on LinkedInZero Ambitions - Construction's embodied carbon problem: how do we incentivise retrofit over 'demolish and rebuild', with Joseph Kilroy (CIOB)The AJ article by Kunle Barker that Will refers to: Without architects' close expert involvement, government plans to retrofit millions of homes will be prone to unintended consequences such as mouldSomething about that 'burning fossil fuels to save the planet' nonsense that Jeff was referring to Future Energy Scenarios 2023 Released, sadly he couldn't find the actual article he rememberedHe found this as well: Ability of bioenergy with carbon capture and storage (BECCS) to generate negative emissionsThe Indy Johar LinkedIn post that Will refers toLRB's James Butler article about Grenfell: ‘This much evidence, still no charges'**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Clare and Ross Booth from Coldwells Build share details of their prefabricated, turnkey Passivhaus designs that aim to simplify the delivery of high performance homes in Scotland. Check out the show notes for more information.

This week we're speaking with Steven Heath, technical director at Knauf Insulation (UK and Ireland) and a really interesting and experienced person in the sector.So while we had him, we ran through a bunch of our favourite hoary subjects: measuring performance, performance guarantees, and what we think about EPCs.Knauf is a firm that's done some really interesting work in all of these areas and has even managed to make headway with the UK state in getting them to think about the value of testing performance, with EPCs and whatever SHDF is called now (the state-driven money tap for decarbonising social housing).Notes from the showSteven Heath on LinkedInKnauf Insulation's websiteThe ZAP episode with Kate Crawford about HTC and the 'snug factor': A new way to measure performance, negative energy use, and learning from disaster zones, with Kate Crawford (KLH Sustainability)**SOME SELF-PROMOTING CALLS TO ACTION**We don't actually earn anything from this, 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, Alex, and Dan about websites, branding, and communications - zap@eiux.agency; Everything is User ExperienceSubscribe and advertise with Passive House Plus (UK edition here too)Check Lloyd's Substack: Carbon UpfrontJoin ACANJoin the AECB Join the IGBCCheck out Her Own Space, the renovation and retrofit platform for women**END OF SELF-PROMOTING CALLS TO ACTION**

Have you ever lived in a house that just wouldn't stay warm, or a place that felt like a perpetual sauna in summer? Passive Houses are all about solving these problems before the home is even built, and using as little energy as possible to do so.In today's episode, we speak to certified passive house builder and MVH Constructions founder Mark van Haandel who talks us through everything you need to know about this voluntary building standard — which uses 90 per cent less energy than a typical home! Read the article featuring the highlights from this episode here, and find out more about MVH Constructions here, and explore the resources on the Passivhaus Association here. Follow us at @thedesignfiles or subscribe to our weekly newsletter so you don't miss a thing.This episode of TDF talks is brought to you by Momentum Energy. 

Richard Hollas from 21 Degrees explains why regular MVHR maintenance and servicing is essential, what it entails, and we accompany him step-by-step as he services a unit. Check out the show notes for more information.

The second part of my conversation with Janna. In this episode we get into the nitty gritty of airtightness, and how we've come to appreciate its need, while not being 100% happy about the materials needed to achieve it. We talk about the importance of fresh air in your building, how C02 will make us unhealthy and sluggish, plus the best way to get the fresh air without losing all your heat.Grain Architecture - https://www.grainarchitecture.co.uk/Architype - https://www.architype.co.uk/Llamacroft - https://www.llama-croft.com/Seb Twitter - https://twitter.com/SebLaanLomasCO2 Monitor - https://uk.rs-online.com/web/p/air-quality-monitors/2676379No more digging - https://nomoredigging.co.uk/Stop Digging - https://stopdigging.co.uk/Firth Construction - https://www.firthconstruction.co.uk/Centre for Alternative Technology CAT - https://cat.org.uk/IndiNature - https://www.indinature.co/Insulation Saw! - https://www.toolstation.com/bahco-insulation-handsaw/p97588John Gilbert Architecture - http://www.johngilbert.co.uk/21 Degrees (windows) - https://www.weare21degrees.co.uk/Connect with me:IG - @jeffreythenaturalbuilderFacebook - JeffreythenaturalbuilderSupport this podcast - https://www.patreon.com/buildingsustainability Support the show and get bonus content on Patreon Hosted on Acast. See acast.com/privacy for more information.

In this episode of the Building Sustainability podcast, I am excited to welcome back architect Janna Laan Lomas, who shares her journey of building a sustainable home in Herefordshire alongside her partner, Seb, and her parents. We discuss the unique multi-generational aspect of their project, the thoughtful design considerations that have shaped their vision, and the innovative construction methods they are using, such as screw pile foundations and timber frames filled with cellulose insulation. Janna emphasises the importance of minimising embodied carbon, reusing materials, and creating a home that is both functional and environmentally friendly. Join us for an inspiring conversation about the practicalities of sustainable architecture and the emotional journey of turning a lifelong dream into reality!Grain Architecture - https://www.grainarchitecture.co.uk/Architype - https://www.architype.co.uk/Llamacroft - https://www.llama-croft.com/Seb Twitter - https://twitter.com/SebLaanLomasCO2 monitor - https://uk.rs-online.com/web/p/air-quality-monitors/2676379No more digging - https://nomoredigging.co.uk/Stop Digging - https://stopdigging.co.uk/Firth Construction - https://www.firthconstruction.co.uk/Centre for Alternative Technology CAT - https://cat.org.uk/IndiNature - https://www.indinature.co/Insulation Saw! - https://www.toolstation.com/bahco-insulation-handsaw/p97588John Gilbert Architecture - http://www.johngilbert.co.uk/21 Degrees (windows) - https://www.weare21degrees.co.uk/Connect with me:IG - @jeffreythenaturalbuilderFacebook - JeffreythenaturalbuilderSupport this podcast - https://www.patreon.com/buildingsustainability Support the show and get bonus content on Patreon Hosted on Acast. See acast.com/privacy for more information.

Paul Morris from Solar-Shield explains how external shading can help control solar gains and reduce internal temperatures, keeping your home cool as temperatures rise. Check out the show notes for more information.