![]() Ian Arthur is the President and CEO of nidus3D, Canada’s experts in 3D construction printing. He has partnered with COBOD who is the world’s leading manufacturer of 3D Construction Printers. Previously, Ian was a Member of Provincial Parliament for the riding of Kingston & the Islands. Ian also sits on the board of directors for Switch Kingston, a not-for-profit association that promotes networking in green and climate related sectors. This episode is all 3D printing, the current pros and cons of 3D printing, how it’s evolving, how it will help housing affordability in the future, how it works and what you can do to get involved if you’re interested. 3:15 Inspiration 7:37 Challenges 9:55 5,000 sq. ft. Printed Warehouse 15:00 Wood vs 3d 19:50 Foundation Provess 21:20 Danish partnership concrete 3d printing For more from Ian and nidus3D -https://www.linkedin.com/company/nidus3d -@nidus3D on twitter and instagram. ![]() Craig Toohey directs Business Development at Collective Carpentry, a custom home wood product-based prefabrication company in Invermere, British Columbia focusing on super-insulated assemblies, low carbon materials, and off-site Passive House construction. Craig has been certified by both the Passive House Institute and PHIUS, and currently works remotely from Europe where he is closely connected to the European industry for prefabricated Passive House construction. Craig has worked with Passive House practitioners across North America, using his background in sustainable business strategy and technical product sales to simplify, communicate, and put into action the solutions that developers, architects, and builders need to meet their business challenges, regulatory requirements, and their own ambitions for providing effective radical building efficiency and carbon mitigation solutions. This episode is all about prefab construction. We chat about when it’s best to use Prefab, how Collective Carpentry is achieving Passive House Certification, how the industry is going to benefit from technology and so much more. 3:33 What got you into Pre Fab? 9:05 Getting to Scale 20:02 Wall section details 26:09 Biggest challenge in the industry For more from Craig: https://www.instagram.com/collective_carpentry/?hl=en Website: https://collectivecarpentry.com/ ![]() This is part two of chatting with Sigi Koko, principal designer at Down to Earth Design, which she founded in 1998 to help people achieve their dreams of living in natural, healthy homes. (Part one is episode #201) In this episode, we touch on things like what the key to straw bale construction is, why she never uses a vapour barrier, what a waddle and dobb wall is, why ducts are unhealthy and so much more. Sigi translates each client’s vision into a unique building design that reflects their personality and lifestyle, while responding to the surrounding landscape and climate. Her uniquely collaborative design process provides a high level of information and support, encouraging her clients to engage fully throughout design and construction. She also teaches natural building workshops that empower her clients to contribute meaningfully during the construction of their own home. 2:57 What is the structure? 9:42 Foundation to wall transition 13:55 Tips for straw bale 17:00 Vapour Barrier 26:35 Roof ceiling connection 30:45 Electrical 42:45 HVAC For more from Sigi https://www.facebook.com/buildnaturally https://www.instagram.com/buildnaturally/ https://www.youtube.com/user/sigikoko https://twitter.com/buildnaturally ![]() Allison Bailes is the Chief Troublemaker at Energy Vanguard, a building science firm located in Decatur, Georgia. The company’s focus is on residential HVAC design, consulting, and training. Dr. Bailes has a PhD in physics from the University of Florida and has been involved with the field of building science since 2001, when he built a high-performance home out of structural insulated panels. He is the author of a popular building science book titled A House Needs to Breathe…Or Does It? He also is well known for writing the Energy Vanguard Blog and a weekly newsletter. This episode is all about HVAC. We chat about what systems seem to be popular and why, the best place to filter the air for your central forced air system and the biggest mistake people make when designing a home from the perspective of an HVAC designer. 2:26 Intro 3:15 Catalyst into building science 6:01 Lessons learned from building house 7:00 Heat Load Calculation 10:00 Current challenges 14:26 SIPS - why 16:35 A House needs to breath or does it? 26:40 Electrification 29:00 High Humidity For More From Allison https://www.energyvanguard.com/book-house-needs-breathe-or-does-it https://www.linkedin.com/in/allisonabailes/ https://twitter.com/EnergyVanguard |
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