Kristof Irwin is the Director of Building Science at Positive Energy, a specialty MEP engineering firm for custom residential architecture projects, and the Host of the Building Science Podcast, making this a fun "interview the host"-style chat.

In this episode, we talk about the growth Kristof has seen in the Passivhaus space since its early days in the US, the power of Systems Thinking, the role people's worldviews/paradigms play in maintaining the status quo, the need to shift people's paradigms when it comes to what a building can and should provide, and much more.

Connect with Kristof, Positive Energy, and The Building Science Podcast:

• Kristof on LinkedIn => https://www.linkedin.com/in/blueheronbuilders/

• Positive Energy on LinkedIn => https://www.linkedin.com/company/positive-energy-building-science/

• Positive Energy on Instagram => https://www.instagram.com/bldgscienceatx/

• Positive Energy website => https://positiveenergy.pro/

• The Building Science podcast (website) => https://positiveenergy.pro/building-science-podcast/

• The Building Science podcast (Apple) => https://podcasts.apple.com/us/podcast/the-building-science-podcast/id999167292

Beth Campbell is the Education Program Director at Passive House Massachusetts, a Certified Passive House Tradesperson, a PHIUS-Certified Passive House Builder Trainer, and the Chair of the Board at Passive House Rhode Island. She brings a wealth of knowledge from multiple perspectives within the industry, spanning the US from the Pacific Northwest to New England.

In this episode, we track Beth's journey from subcontractor to working in green and natural building to discovering and embracing passive house and passive building methodologies. We talk about the marketing needs of different stakeholders and audiences, how to most efficiently bridge existing education gaps within the industry, and the continued great work happening in Massachusetts.

Connect with Beth, Passive House Massachusetts, and Passive House Rhode Island:

• Beth on LinkedIn => https://www.linkedin.com/in/beth-campbell-better-buildings/

• Passive House Massachusetts on LinkedIn => https://www.linkedin.com/company/phmass/

• Passive House Massachusetts on Bluesky => https://bsky.app/profile/phmass.bsky.social

• Best practices whitepaper => https://phmass.org/cost-efficient-passive-house-delivery/

• Passive House Massachusetts website => https://phmass.org/

• Passive House Rhode Island website => https://passivehouseri.org/

Steve Hessler is a Certified Passive House Consultant, building systems specialist at New Energy Works, and visiting educator at McGill University through Holzraum System. He started out in communications before being drawn into carpentry via a growing obsession with all things wood, and ultimately into building and enclosure design.

In this episode, we talk about the marketing potential of graphic-rich modeling visualizations, the many benefits of building with biogenic materials, the importance of thinking at the whole-system level, the beauty of a well-illustrated instruction manual, and more.

Connect with Steve, New Energy Works, and Holzraum System:

• Steve on LinkedIn => https://www.linkedin.com/in/steve-hessler-81214833/

• New Energy Works on LinkedIn => https://www.linkedin.com/company/new-energy-works/

• New Energy Works on Instagram => https://www.instagram.com/newenergyworks/

• New Energy Works website => https://newenergyworks.com/

• Holzraum System on LinkedIn => https://www.linkedin.com/company/holzraum-system-llc/

• Holzraum System website => https://www.holzraumsystem.com/

Mark Attard is the founder and director of Point 6 Building Science Consultants, as well as being both a certified passive house consultant and tradesperson. From energy modelling to heating and cooling design, verification work in the field to pre-build sequencing, Point 6 is on a mission to support architects, builders, developers, and municipalities in building verifiably better buildings.

In this episode, we talk about the esoteric, passive house-themed name of his and co-founder Shawn LeMons' business, the importance of clearly defined goals on a project whether that's certification or not, how to communicate effectively with clients and tradespeople working on your project, and more.

Connect with Mark and Point 6:

• Mark on LinkedIn => https://www.linkedin.com/in/attardmark/

• The Colorado Green Building Guild => https://cgbg.org/home

• Reimagine Buildings Collective => https://collective.reimaginebuildings.com/

• Passive House Rocky Mountains => https://passivehousenetwork.org/chapters/passive-house-rocky-mountains/

• Point 6 on LinkedIn => https://www.linkedin.com/company/point6pro/

• Point 6 on Bluesky => https://bsky.app/profile/point6pro.bsky.social

• Point 6 on Instagram => https://www.instagram.com/point6pro/

• Point 6 website => https://www.point6.pro/

Josh Salinger is the founder and CEO of Birdsmouth Design-Build, building custom new residential homes and ADUs, as well as some retrofits and remodels. They focus their new construction on passive buildings and have been doing that — and certifying them through Phius — since 2012 or so, operating out of Portland, Oregon, in the US Pacific Northwest.

In this episode, we talk about best practices and how passive building techniques and passive house certification are, in a way, nothing more or less than a means of following best practices at every step along the way. We talk about the benefits of design-build, the five things everyone really wants from their building (and how to figure out which one to talk about first), and much more.

Connect with Josh and Birdsmouth:

• Josh on LinkedIn => https://www.linkedin.com/in/josh-salinger-763a396/

• Josh on Fine Home Building => https://www.finehomebuilding.com/author/josh-salinger

• Josh on Green Building Advisor => https://www.greenbuildingadvisor.com/author/josh_salinger

• Birdsmouth on LinkedIn => https://www.linkedin.com/company/birdsmouth-designbuild/

• Birdsmouth on Instagram => https://www.instagram.com/birdsmouthpdx/

• Birdsmouth website => https://www.birdsmouthpdx.com/

Lorrie Rand is a Sustainability Specialist at Habit Studio, a Senior Advisor at the ReCover Initiative, a Board Member at Retrofit Canada, and an instructor at Passive House Canada. Her first practice, Habit Studio, is an award-winning, women-led architectural and residential design firm based in Halifax, NS, focused on Passive House and deep retrofits.

In this episode, we talk about Lorrie's semi-accidental journey into forming two companies, how her passive house journey began with a client request, Habit Studio's commitment to building passive house homes at cost parity with code-built homes, Canada's big need for home retrofits, and more.

Connect with Lorrie, Habit Studio, and The ReCover Initiative:

• Lorrie on LinkedIn => https://www.linkedin.com/in/lorrie-rand-80b03611/

• Habit Studio on LinkedIn => https://www.linkedin.com/company/habitstudio/

• Habit Studio on YouTube => https://www.youtube.com/@habitstudioinc

• Habit Studio on Instagram => https://www.instagram.com/habitstudio/

• Habit Studio website => https://www.habitstudio.ca/

• ReCover Initiative on LinkedIn => https://www.linkedin.com/company/the-recover-initiative/

• ReCover Initiative on Instagram => https://www.instagram.com/recover_canada/

• ReCover Initiative website => https://recoverinitiative.ca/

Elrond Burrell is an architect and owner of VIA Architecture, as well as the program director for Building Science and a senior lecturer at Victoria University of Wellington's Faculty of Architecture and Design Innovation.

In this episode, we talk about Elrond's blog, Passivhaus in Plain English, including how it has helped open doors to new work and opportunities, the unexpected move to teaching, the challenges of building Passivhaus in New Zealand, and the persistent warmth and supportiveness of Passivhaus communities all over the world.

Connect with Elrond and VIA architecture:

• Elrond on LinkedIn => https://www.linkedin.com/in/elrondburrell/

• Passivhaus in Plain English Blog =>https://elrondburrell.com/

• 10 Things I Hate About Passivhaus! Blog Post => https://elrondburrell.com/blog/10-things-i-hate-about-passivhaus/

• VIA architecture on LinkedIn => https://www.linkedin.com/company/via-architecture-passivhaus-experts/

• VIA architecture website => https://via-architecture.net/

• Victoria University of Wellington Faculty of Architecture and Design Innovation on LinkedIn => https://www.linkedin.com/showcase/wellington-faculty-of-architecture-and-design-innovation/

• Victoria University of Wellington Faculty of Architecture and Design Innovation website => https://www.wgtn.ac.nz/wfadi

• Passive House Institute New Zealand (PHINZ) website => https://passivehouse.nz/

• PHINZ High-Performance Construction Details Handbook => https://passivehouse.nz/hpcd-handbook/

• Architype website => https://www.architype.co.uk/

• Passivhaus Trust UK website => https://www.passivhaustrust.org.uk/

Adam White is the CEO and Founder of Intelligent Membranes, makers of the popular, passive house-certified Passive Purple, a liquid-applied airtight and vapour control membrane. Adam puts the product's birth down to his innate stubbornness, coupled with his willingness to say yes to things and then go figure out how to make them true.

In this episode, we discuss Adam's unconventional journey from carpenter to self-described marketing company owner (and craft beer co-owner), the glory of having your own passive house bar, when it comes to sitting down with someone and talking through passive house, and the importance of certifying and verifying results — especially with retrofits.

Connect with Adam and Intelligent Membranes:

• Adam on LinkedIn => https://www.linkedin.com/in/adam-white-cphc-b911a876/

• Adam on Instagram => https://www.instagram.com/passivhausme/

• Intelligent Membranes on LinkedIn => https://www.linkedin.com/company/intelligent-membranes/

• Intelligent Membranes on Instagram => https://www.instagram.com/intelligent_membranes/

• Intelligent Membranes website => https://intelligentmembranes.com