Blower Door Test

It can also be used to measure airflow between building zones to test ductwork airtightness and to help physically locate air leakage sites in the building envelope.

Blower door test. We ll also get to find out what the major inf. Knowing a bit about the outside factors that can influence the results will ensure that the test is performed correctly. This test ensures a certain level of energy performance and is often used when a project team is aiming for a performance based. 1 a calibrated variable speed fan capable of inducing a range of airflows sufficient to.

Blower door tests are performed by trained and certified energy auditors but a homeowner can conduct a mini test to help pinpoint leaky areas of the home. During this test a calibrated fan is installed in an otherwise sealed door or window while all the other openings to the exterior are closed. These are some reasons for establishing the proper building. Blower door test during a home energy audit.

To conduct a blower door test an infiltrometer or blower door fan is placed in the main entry doorway to depressurize the house or suck out air from the interior. There are three primary components to a blower door. The second part of this series will pick up with our blower door test from the moment we turn on the manometer. Professional energy auditors use blower door tests to help determine a home s airtightness.

The following will help you conduct your. A blower door test is used on buildings in order to quantify the amount of air leakage through its enclosure. A blower door test is a machine used to calculate airflow between the interior and exterior of a structure measure the airtightness of buildings and identify spots where air is leaking through a building envelope. Since blower door testing is a standard tool used during an energy audit it is helpful for inspectors to understand how the test works.

The blower door test simulates wind blowing against a building at 20 miles per hour in which case the total volume of air within the house would be exchanged with outside air 7 times. As the fan is running a technician can move from room to room throughout the house to detect. This process will cause outside air to be drawn into the house through leakage points. Last year we built an energy star home for a customer and we used a blower door test to evaluate the houses air infiltration performance.

Our energy saver 101 infographic explains the importance of a blower door test during a home energy audit. The 20mph wind is equivalent to 50 pascals pa of pressure difference. A blower door fan simulates these conditions during a test. A blower door is a machine used to measure the airtightness of buildings.

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