Welcome to Part 2 of Episode 32 of the Build Insite Podcast, featuring Devin Grant from Performance Membranes and Joel Seagren from Fantech. In this episode, we dig deeper into what it truly takes to build energy-efficient homes—beyond the buzzwords and surface-level upgrades. Devin and Joel share practical insights into the principles of Passive House, the importance of holistic planning, and how new technologies in membranes, ventilation, and materials are transforming construction in Australia. The conversation explores how to balance sustainability with performance, the role of retrofitting, and the long-term value of smarter building choices. Whether you're a builder, designer, or tradesperson, this episode is packed with clear, actionable advice on how to lead the charge toward healthier, more energy-efficient homes—one smart detail at a time.



00:00 – Introduction to Energy Efficiency

00:35 – The Role of Passive House in Energy Efficiency

01:46 – Innovations in Building Materials

03:03 – Balancing Energy Efficiency and Environmental Impact

04:31 – Challenges and Solutions in Energy Efficient Building

05:35 – Cost Analysis and Long-Term Benefits

06:38 – Ideal Wall Buildups for Energy Efficiency

10:48 – Educating the Industry on Sustainable Practices

17:36 – Retrofitting Existing Homes for Energy Efficiency

20:24 – Collaborating for Efficient Building Design

21:41 – Future of Membranes and Ventilation Systems

24:36 – Challenges and Opportunities in the Industry

28:02 – Advice for Builders and Tradespeople

30:20 – Rapid Fire Questions and Closing Remarks



This is the episode to share with your crew, your designer, and your client—it’s about working smarter, building better, and doing it together.

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