The Building Science Podcast

Latest Episodes:

Pickleball Goes Passive Jun 11, 2024

Show notes

Who knew that an indoor pickleball facility could become a touchstone for high performance construction based on passive house principles? The backstory here is worth unpacking as it relates to a powerful force that is not often discussed - money. Return on investment is the aim of the game in the realm of real estate investment and this fact typically filters out high performance passive buildings - but not this time, and it is important to understand why. Our guest today is adept in both the financial and the construction realms and has been able to make a solid case for the value of passive construction in his latest development.

Beyond the financial angle, this project aim to showcase high quality construction while also fostering community through sport. Plus with the heat and humidity of the Texas summers playing sports indoors makes it far more accessible to people. Join us in this thought-filled interview with David Komet of Urban Earth to hear about his journey and learn what he’s doing with his new pickleball facility as he prioritizes the health of the community, the local environment, and the planet.

David Komet

David's professional career began with the Medical Center Guesthouse of America, developing interim stay facilities for patients and their families in major medical centers. From there he went on to be General Manager of Murdock Pharmaceuticals, a division of Nature's Way. His business experiences soon led him to the public capital markets and positions with Prudential Securities and Komet Asset Management managing private pools focused on long/short equity, direct lending and equity real estate investments. His current active projects reflect his deep interest in the sustainability conversation for the built environment, including age in place housing , commercial buildings and controlled environment agriculture.

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Is There a Passive House Aesthetic? May 23, 2024

Show notes

At a fundamental level, passive house practitioners are engaged in a rebellion against poor quality design and construction. It’s becoming quite clear that this rebellion has legs and will endure. Given this, a question worth unpacking is whether the durability of the passive house movement is emerging as an architectural style. What are the defining principles behind architectural aesthetic decisions in the context of high performance homes and buildings? What will the history books say about our little rebellion in the years to come? Join us in this rich and thoughtful discussion with two powerful voices at the top of their game in the passive house realm.

Tessa Bradley

Tessa is an optimist. She’s also tenacious and dedicated to creating designs that are stunning and sustainable at once. She uses her powers for good: in Tessa’s vision of the future, architecture is a cohesive part of creating the good life for more people — she believes that excellent design can help make a joyful life.
With a tireless enthusiasm for problem-solving and a drive to tackle the toughest challenges head-on, she approaches every project with a blend of spunk, poise, and nerdy, sciencey know-how.
Tessa’s signature style merges elegant modernism and cutting-edge building science. She’s designed some of the most energy-efficient homes in the United States and has been featured in Dwell, The New York Times, The Seattle Times, Sunset Magazine, Design Boom, Houzz, and in books about sustainable design, prefab architecture, and Passive House homes.

Graham Irwin

Graham is the principal of Essential Habitat Architecture, a Northern California design firm focused on healthy, high performance, sustainable buildings built to Passive Building standards. He has a degree in physics, with additional studies in engineering and architecture, and an extensive background in software development. Since 2008, his firm has worked on numerous single-family, multi-family and commercial Passive House projects throughout California and the US, including the first certified Passive House in California, the first certified Passive House retrofit in the US, and the first certified multi-family Passive House in the US. He is a licensed architect and licensed general contractor in the state of California.

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Our First PSA, Humid Climate Conference in Austin, May 6-7! May 01, 2024

Show notes

Big news! The Humid Climate Conference is coming back to ATX and it’s time for some appropriate FOMO. We’re just two weeks out. You will be so glad you made the decision to come to HCC in ATX. Both the technical knowledge and perspectives you’ll hear, as well as the realization and experience of the power, vitality and unstoppability of the growing community of folks in the AEC that are stepping up to move our industry and our society forward.

The theme for HCC’24 is Transitions. The work we do in the world as architects, developers, builders, trades, and even owners is important and it is also going through a series of transitions that together represent an altogether new way of delivering buildings to clients and communities. The Energy Transition, the refrigerant transition, the transition to lower carbon designs, both embodied and operational, are all “in play” right now. Now is the time to learn about them from visionary thought leaders and boots on the ground who are both showcasing these transitions and helping make them happen.

Here’s the HCC website and here’s the link to buy tickets.

Code to get $50 off is shared on the podcast!

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Ultrasonics Comes to Market Apr 22, 2024

Show notes

Today’s episode opens up the system of systems that delivers the materials, equipment and tools we use to deliver high quality homes and buildings to ourselves. The focus is on an novel ultrasonic leak detection system. This is potentially game-changing technology that impacts the ability to confidently deliver Passive House quality air control layers. Along the way you’ll learn about the importance of the air barrier and get a glimpse of the vastness of the AEC. This is an expansive episode that covers the human side of what it will take to get us from high quality designs to high performance finished projects - and ultimately to high quality lived experiences for occupants and owners.

If you appreciate the ideas you hear on our podcast, Humid Climate Conference is the conference and the community you’re looking for.

Bernard Hornung

Head of Built Environment, Coltraco Ultrasonics Limited a technology firm in the UK.
Coltraco is manufacturer of a novel and powerful ultrasonic leak detection system.
An example of the types of innovative and trailblazing materials equip and tools that Source2050 is brining to the market. Major Bernard Hornung was educated at Ampleforth College and at The RoyalMilitary Academy Sandhurst. He served 15 years in the Irish Guards, firstly as a Platoon Commander in the Battalion and secondly at the Infantry Junior Leaders Battalion. Bernard is fluent in Spanish and in Portuguese Bernard joined Coltraco Ultrasonics In May of 2020 (a good time to switch career focus to air quality and air barriers) as Head of the Built Environment at Coltraco.

John Knapp

Co-founder of Source2050.

Source2050 is the first mission-driven, curated marketplace of energy efficient and high
performance building products that lets builders find and purchase the best solutions for their projects. As you’ll hear he’s a force of nature who has done a lot, and played a varied of roles during his time on the planet.

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Next Level Leverage Apr 10, 2024

Show notes

What if it’s true that “We can not solve our problems using the same level of thinking that created them”? - Attributed to Albert Einstein
Could it be that our building science understanding is limited? Could it be that even the clarity of understanding we gain by viewing homes and buildings as a systems of systems, assemblies, materials and products interacting according to the laws of science and nature - is necessary but not sufficient to cause us to build that way?
Building science is a necessary understanding but it is proving insufficient to cause the change we want at the pace we need. What do we need to add to the building-as-a-system perspective? What will it take to get past Knowing How to get us to Actually Doing what it takes to design and build for the outcomes we need? Using that concept as a lens, this episode seeks to expand the building-as-a-systems view into the society-as-a-system view in order to find ways to allow the power of building science to have proper impact in society. Anyone working in the AEC knows that the barriers to change are solid and weighty. This is what motivates our search for Leverage.
Leverage is a force multiplier. Leverage creates a large powerful force using a smaller force. We need leverage to multiply the force we can exert to cause change to happen in the AEC. Following the insights from Donella Meadows(2), we focus on the concept of Leverage Points - those “places within a complex system where a small change in one area can have pervasive positive impacts”. What we will discover is that according to Donella our mental models of the world, our industry, and our role in it - our deeply held, often unexamined, paradigms, are points of power that bring leverage.
Please join us for this rich and thoughtful exploration to find sufficiency. What will it actually take to bring the future we want into the present we have. Bring your caring hearts and curious minds and let’s have some fun!

Reference: Donella Meadows, Thinking in Systems: A Primer
BSPS, SIGN UP PAGE TO GET ON OUR MAILING LIST, WE NEVER SHARE IT.
https://positiveenergy.pro/the-building-science-philosophical-society
DONELLA MEADOWS BOOK
CHAPTER 6
https://donellameadows.org/wp-content/userfiles/Leverage_Points.pdf
Wiki on Donella Meadows
https://en.wikipedia.org/wiki/Donella_Meadows
Donella Meadows Project - Academy for Change
https://donellameadows.org/
Check out the Systems Thinking Resources page!
https://donellameadows.org/systems-thinking-resources/
Book: Thinking in Systems
https://donellameadows.org/systems-thinking-book-sale/

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Houses are Made of Stories Mar 26, 2024

Show notes

Josh Salinger

Joshua Salinger is CEO and Founder of Birdsmouth Design Build, a residential Design Build company located in Portland OR. In 1999 Josh graduated from the University of Wisconsin-Madison with a double major in Zoology and Conservation. In 2007 he started Birdsmouth Design Build with the goal of designing and building beautiful, high performing homes that transform and improve the built environment.

Josh has received certifications from Earth Advantage’s Sustainable Homes Professional course, and is an early graduate of the Passive House Builders Training program administered by PHIUS and is an accredited EEBA Zero Energy Home Professional. He has been on the board of Passive House Northwest since 2016 and also sits on the Technical committee of Zero Energy Ready Oregon. He is currently developing the curriculum in concert with Earth Advantage for the Sustainable Homes Professional Remote Learning & Accreditation Program. He lives in the Mt. Tabor neighborhood of Portland with his wife and two children and enjoys playing guitar, yoga, cooking, bemoaning the inefficiency of his house, and making the world’s best cup of coffee.

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Entropy, Insight and Our Time to Shine Mar 12, 2024

Show notes

Luke Leung

Luke is a LEED (Leadership in Energy and Environmental Design) Fellow; He is also a Centennial Fellow from The Pennsylvania State University Architectural Engineering Department; Board of Directors for USGBC (United State Green Building Council), Illinois; Chairman of the ASHRAE (American Society of Heating, Refrigeration and Air Conditioning) Committee on “Tall Buildings”; Chairman of the Building Pressure Committee, Chicago Committee on High Rise Buildings; Sustainable Committee with Council on Tall Buildings and Urban Habitat; Part Time Professor at IIT; Member of the Chicago Sister Cities Program with China; MBA from University of Chicago, MS and BAE from Architectural Engineering at Penn State University.

Luke Leung is the Director of the Sustainability Engineering Studio for Skidmore, Owings and Merrill LLP. He is the incoming Chair of ASHRAE Environmental Health Committee; Team leader for ASHRAE Epidemic Task Force, Commercial Buildings; Group Leader for LCA and Embodied Carbon, ASHRAE Decarbonization Task Force; National Renewable Energy Laboratory IN2 Incubator Industry Advisor; BOMA Toronto, Health Committee Co-Chair. His work includes Burj Khalifa, the world’s current tallest man-made structure; Multiple times “Excellence in Engineering” award from the American Society of Heating, Refrigeration and Air Conditioning Engineers (ASHRAE); Selected projects also include Pertamina Tower (Net Zero Supertall), General Motors Global Headquarters, XiongAn Net Zero Development, Beijing Finance Street, Embassy of Ottawa in Canada, Embassy in Beijing, Lakeside – 55 million sqft low energy development, a LEED Platinum building with the first large scale horizontal wind turbine in the city of Chicago; etc., and has served as a member of the editorial team for the CTBUH guide Natural Ventilation in High-Rise Office Buildings, ASHRAE “Design Guide for Tall, Supertall, Megatall Building Systems”, among other publications.

Team

Hosted by Kristof Irwin

Produced by M. Walker

Edited by Nico Mignardi

Wood is Good? Mar 01, 2024

Show notes

Chris Magwood

Chris works with the Embodied Carbon Team in the Carbon Free Buildings Program. He brings focus on carbon-storing material and the residential sector to the team, using his experience with LCA studies and policy development to support the team’s work.

Chris has been designing and building zero-carbon buildings throughout his 25-year career. From 2005 to 2018, he was a lead instructor in a hands-on design/build program at Endeavour Centre and was responsible for many zero-carbon, zero-toxin, and zero-waste buildings.
In 2019, he helped found Builders for Climate Action and codeveloped the BEAM tool for measuring material emissions in residential buildings. He authored four major studies of embodied carbon in new construction for Canadian governments and helped Canadian cities develop an embodied carbon policy.

Chris published eight books on green construction, most recently coauthoring Build Beyond Zero: New Ideas for Carbon Smart Architecture (Island Press, 2022) with Bruce King.

Jacob Racusin

Jacob Deva Racusin is co-owner of New Frameworks Natural Building, LLC, offering services in green remodeling, new construction, consultation, and education featuring natural building technologies. Through their work as a builder, consultant, and educator, Jacob is able to merge their passions for fine craft, ecological stewardship, relationship to place, and social justice.

Their goal in this work is to create a meaningful impact on the built environment in developing healthy, resilient communities. Deva is an instructor at the Yestermorrow Design/Build School, where they are the former director of the Natural Building Intensive Program. A BPI-certified contractor and Certified Passive House Consultant, Jacob has conducted field research on moisture and thermal performance of straw bale wall systems, which is featured in the book The Natural Building Companion which they co-authored with Ace McArleton (Chelsea Green Publishing, 2012). They have lectured and presented at universities, conferences, and other events across the Northeast. Jacob lives with their family in Montgomery, VT, in a straw bale house on their permaculture-inspired homestead.

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Circles All the Way Down Feb 13, 2024

Show notes

How do we design and build affordable net-zero, carbon-negative homes? That important goal is the subject of today’s episode and is the focus of a multidisciplinary team that includes PNNL, Virginia Tech, and Green Canopy NODE. On the podcast today you’ll hear from Patti Gunderson with PNNL who is working with a talented team who are taking a thoughtful approach to this ambitious goal. One that focuses on modular design, carbon sequestering materials, thermal/energy efficiency, and a forward-looking circular approach that relies on cleverly designed, factory-built, bio-based materials right from the start. The outcome is a home that supports an owner’s right to repair (we need this with so many so-called durable products in our world today) and also allows the materials in the home to be disassembled and reused and the end of the home's lifecycle.

Patricia Gunderson

Patti Gunderson joined PNNL in 2021 and supports several projects in both the Energy Policy and Economics and Buildings and Connected Systems Divisions. A particular strength is collaborating with manufacturers, designers, builders, and trades people to understand and overcome barriers to adoption of optimized building technologies.

Patti most recently spent nearly six years at Home Innovation Research Labs where she proposed, designed, and led research projects to study constructability, functionality, energy efficiency and durability of buildings. Her background in building physics, engineering software tools, systems design, discipline coordination, project documentation, and construction administration provides valuable insight for research, analysis and client support.

Prior to HI, Patti worked in the DC office of SmithGroup, an international AE firm, on numerous high-profile projects including embassies, medical centers, university law schools and the flagship Net Zero Brock Environmental Center for the Chesapeake Bay Foundation. Patti is a big fan of collaboration and has benefitted from research partners and clients representing several national labs, the National Association of Home Builders, the Leading Builders of America, and numerous international manufacturers, as well as staff from DOE, FPL, HUD, and VA.

Team

Hosted by Kristof Irwin

Edited by Nico Mignardi

Produced by M. Walker

Air-To-Water: Hydronic Hype or the Future? Jan 24, 2024

Show notes

You don’t have to be a building nerd or an engineer for a question like this to be relevant and important to consider. There are many reasons why AWHP systems make an attractive alternative to our batch of current “normal” heat pumps that rely on refrigerant for thermal distribution. Some of the reasons AWHP are appealing include: (1) reduced refrigerant volumes, thus reduced refrigerant leakage into the atmosphere; (2) larger selection of indoor unit options relative to refrigerant based systems; (3) the ability to support comfort via thermally active surfaces (aka radiant heating/cooling); (4) your home is better future-proofed and more technology-agnostic, and (5) these systems affordably unlock thermal storage (for thermal loads), which can provide energy resilience for their owners as well as dispatchable grid-level energy storage This episode is why you listen to the Building Science Podcast, somehow this multifaceted emerging story has still not hit the mainstream.

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