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A blower door is used to measure pressure differences relative to the outside environment in a building, aiding in evaluating its airtightness and energy efficiency.
A blower door is used to directly measure pressure differences WRT outside. It helps assess the airtightness of a building by determining how much air infiltrates into or exfiltrates out of the building when subjected to a specific pressure difference.
In a building, airflow rates can be influenced by various factors, including pressure differences between zones and the building's envelope. The blower door test allows for the quantification of airflow rates at specified pressure differentials, providing critical data for evaluating a building's energy efficiency and indoor air quality.
By measuring pressure differences relative to the outside environment, the blower door test assists in identifying air leakage points and gauging the effectiveness of a building's insulation and air sealing measures.
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