Blower Door Test Attic

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Blower door test attic. Blower doors consist of a frame and flexible panel that fit in a doorway a variable speed fan a pressure gauge to measure the pressure differences inside and outside the home and an airflow manometer and hoses for measuring airflow. We use a blower door test to identify key problem areas in 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. Attic crawl spaces that air not good healthy air for you to breathe.

Blower door test will also help you find out how some of the dust comes into your home. However we also use some specialized equipment to get a complete picture of how your home is losing energy. Blower door test helps determine how much ventilation is needed to improve indoor air quality. These tests determine the air infiltration rate of a building.

When the fan is turned on it creates a pressure difference between the outside and the inside. Energy saver we know where to find air leaks in your home. As well as how to get fresh air into your home. When we do a blower test we close all exterior doors and windows open all interior doors and close all fireplace dampers doors and woodstove air inlets.

We usually use the front door for the blower door so access during the test will need to be through garage door or other outside entrance. Typically done under negative pressure the fan sucks the air out of the home causing it to come in through whatever pathways it can find.