ABAA Certified Air Barrier Specialist Practice Test

The purpose of a blower door test is to locate air leaks in a building. This test creates a controlled environment by using a fan to adjust the air pressure in the building. By doing so, it enables the assessment of how well the building is sealed against air infiltration. When the blower door fan operates, it increases or decreases the air pressure inside, and this pressure difference causes outside air to infiltrate through any existing leaks. Observing where the air is entering or escaping helps identify specific areas that may need improvement in terms of air sealing, which is crucial for enhancing energy efficiency, comfort, and overall performance of the building envelope.

This test is a valuable tool for builders, contractors, and energy auditors, as it directly informs them about the building's air tightness and potential energy loss points without directly measuring factors related to indoor air quality, energy consumption, or occupancy levels.