Mould, Moisture Control & Airtightness in Modern Construction
From The Built Environment by Dean Ipaviz
February 9, 2026 · 1h 47m · Season 1 · Episode 9
About this episode
Dean Ipaviz interviews Stewart Scholten about moisture management and airtightness in modern construction practices in Australia.
Dean sits down with former builder and Passive House tradesman now working with Pro Clima, Stewart Scholten from Scholton Group, to talk about membranes, moisture management, airtightness and the shift happening in Australian construction. Stu shares his journey from carpentry apprenticeship through high-end residential construction, working with Bellavarde, delivering the first certified Passive House in the Northern Rivers, and transitioning into building science and product education. This episode is about understanding how better detailing, better science and better collaboration can lead to longer lasting buildings. In this episode: Why WRBs and membranes have become critical under recent NCC updates The difference between cladding and the true waterproofing layer Risk reduction in modern building Passive House principles and what builders can learn from them Airtightness and why it matters What a WUFI analysis is and why it’s becoming essential The role of mechanical ventilation Natural materials vs synthetic materials in moisture management Education gaps in the building industry Why site management and collaboration matter more than ever Links & Resources: Check out…
People in this episode
Host: Dean Ipaviz
Guest: Stewart Scholten
Topics covered
- mould
- moisture control
- airtightness
- modern construction
- Passive House
- building science
Keywords
- membranes
- moisture management
- NCC updates
- cladding
- waterproofing
- risk reduction
- WUFI analysis
- mechanical ventilation
Mentioned in this episode
Products: Pro Clima
Places: the Northern Rivers, Australia
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