How a blower door test works.
Blower door test chicago.
It has been estimated that based on standard building practices, air leakage accounts for about 1/3 of the total heat loss of a home.
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Viewing the walls, floors, and ceilings with an infrared camera while the fan is running can then show you where all those leaks are.
This means having an air barrier with minimal leakage.
The fan pulls air from inside of the house to the outside creating negative pressure.
The blower door test consists of a large fan installed in the opening of an exterior door of the home.
It turned out that our 2nd floor was pretty drafty at 4,763 cfm50 or 13.9 ach50.
This test is mandated by the energy codes for new construction (aka duct & envelope tightness or det) but is also used to help diagnose issues &/or tighten up ones existing home.
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The average hgome has the equivalent air leakage to leaving a window open for 24 hours a day!
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With all doors, windows and other openings tightly closed, the fan will pull air out of the home to cause a depressurized condition to a difference of.
Call for a blower door test today to start saving and make your home more energy efficient.
A blower door test (building leakage, building infiltration, etc.) determines the leakiness of a home.
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The blower door test is a standardized examination of the pressure of a home or structure.
We use a blower door test to identify key problem areas in the home.
The preparations a lot of work has been completed since that first test: