What are the steps to run the Blower Door test?
• When the fan is turned on, the pressure inside your home is gradually reduced to allow outside air to flow into the house through unsealed openings or cracks in the house structure. • Pressure gauges connected to the fan measure the rate of airflow required to keep your home at a constant pressure so that the advisor can calculate your home’s resistance to air infiltration. • The blower door test equipment then calculates the air leakage rate of the home. The results of the test are considered in your home’s energy efficiency rating. Because airtight homes are energy efficient, a house that has little air leakage will result in a higher rating than a home that has a lot of air leakage.
