Blower Door Test · Nairne, Adelaide Hills
Blower Door Test — Nairne, Adelaide Hills
Project overview
A pre-renovation airtightness test on an existing home at Nairne in the Adelaide Hills, ahead of a planned extension. We set up a Retrotec blower door to measure how leaky the existing building fabric is — establishing a baseline before the works so air-sealing can be targeted where it matters most.
12.5 ACH
Air changes @ 50 Pa
1,149 cm² · 0.115 m²
Equivalent leakage area
≈ 38 cm across
Equivalent round hole
Blower Door TestingAirtightnessPre-Renovation
Outcome
Baseline result: 12.5 ACH @ 50 Pa — equivalent to a 1,149 cm² (0.115 m²) hole in the building fabric, about a 38 cm round opening. A clear, measurable target to seal against during the extension.
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