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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.
Ventilation (MVHR)6 min read
NCC 2022 Ventilation Requirements
How Part 10.6, H6V3 and the condensation-management provisions apply to residential ventilation without confusing air permeability with ACH50.
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