This is a big can of worms
From Mindful Builder by Matthew Carland and Hamish White
May 3, 2026 · 1h 19m · Episode 115
About this episode
The episode discusses the gap between building compliance and real-world performance in construction, focusing on moisture management and the implications of the National Construction Code updates.
“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…
People in this episode
Hosts: Matthew Carland, Hamish White
Guest: Villy Yordanov
Topics covered
- building compliance
- moisture management
- building performance
- National Construction Code
- high-performance homes
- building science
Keywords
- building compliance
- moisture management
- National Construction Code
- membranes
- high-performance homes
- building envelope
- leaks
- mould
- Passivhaus
Mentioned in this episode
Organizations: Pro Clima, National Construction Code
Places: Australia, Tropical
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