# This is a big can of worms

Page: https://stenobird.com/podcast/mindful-builder-6841919/this-is-a-big-can-of-worms
Text version: https://stenobird.com/podcast/mindful-builder-6841919/this-is-a-big-can-of-worms.md
Podcast: [Mindful Builder](https://stenobird.com/podcast/mindful-builder-6841919)
Published: 2026-05-03T17:00:00+00:00
Episode link: https://mindful-builder.captivate.fm
Audio file: https://episodes.captivate.fm/episode/6b8df5bd-04b8-4755-9d9b-e89f28ea706b.mp3
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JSON: https://stenobird.com/v1/public/podcasts/mindful-builder-6841919/episodes/this-is-a-big-can-of-worms
Duration seconds: 4643

## Resource

“Legally, you can still build a house with no membrane.” That line from Villy Yordanov, Pro Clima’s Innovation Engineer, sets the tone for this conversation about what is technically allowed versus what actually leads to durable, healthy homes. We unpack the gap between building compliance in Australia and real-world building performance , particularly in weatherproofing , moisture management , and the building envelope. A big focus is the NCC 2025 changes and how some cladding types can bypass performance solutions. On paper, that can look like simpler compliance. On site, it can create risk if builders assume “compliant” automatically means “safe” or “long-lasting”. We talk about why National Construction Code updates matter for builders, and how small decisions in wall systems can lead to big problems later like leaks, mould, and expensive rectification work. We also break down what membranes actually do in modern construction. They are not just there to “stop condensation”. They are part of a complete building envelope system that helps control water, air, and vapour . Alongside correct detailing, taping, penetrations, ventilation, and airtightness , membranes support durability , moisture safety , and better indoor comfort. If you are interested in building science , high-performance homes , or Passivhaus and Passive House principles , this episode connects the dots in plain language. Finally, we look at why warm climates are not a free pass. Tropical building in Australia brings extra humidity and a higher moisture risk, which makes good detailing even more important. The takeaway is simple. Builders who keep learning, understand systems, and treat weatherproofing as a whole-of-wall approach will build better homes and avoid costly failures. If you want practical…

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## Transcript

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