Perform Blower Door Test for Air Leakage
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What happens here
To evaluate the effectiveness of air sealing, a blower door test is performed. The video shows a large, specialized fan mounted in a temporary frame that seals off an exterior doorway. This fan is used to depressurize the house, exaggerating air leaks to make them easier to detect and measure. The narrator mentions that 'they're also checking the seals in the doors' and 'checking the pressure,' indicating that this test helps quantify the home's airtightness. This test typically requires specialized equipment and expertise.
Goal: Quantify the home's airtightness and identify remaining air leaks.
Tools and materials
- Blower Door System — Measuring the airtightness of a building by creating a pressure difference
- Pressure Gauge/Manometer — Measuring the pressure differential created by the blower door
- Smoke Pencil — Visualizing air currents to locate leaks
- Thermal Camera FLIR — Identifying temperature differences caused by air leaks