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Airtightness16 min read
What Is ACH50?
The number every airtightness test comes back to. What it means, how it's measured, typical Australian results and the Passive House target.
SA Compliance11 min read
NCC 2022 Ventilation & Airtightness for SA Homes
The authoritative South Australian pillar: SA commencement dates (modern homes provisions from 1 October 2024), the 5 ACH50 trigger, condensation rules and compliance pathways.
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