Blower Door Tests
- A blower door test is used to gauge the rate of air leakage from a building.
- A Blower Door Test to determine air leakage
The blower door is a large fan mounted onto a panel which then seals into an existing door frame. It changes the pressure in a home in order to measure and locate air leaks.
Ventilation and heating ducts along with gaps around windows and doors are the main source of air leaks. However, improper installation of insulation, sloppy framing techniques and unsealed electrical or plumbing penetrations play a major role in air leakage as well. Air leakage is one of the most significant causes of home heating waste in the United States. Heated air leaking out in the winter, or cooled air leaking out in the summer can account for as much as 40% of the total cost of keeping indoor air temperature comfortable.
Very often sealing these leaks is the most cost effective way to save energy in your home.
The United States Department of Energy has a good description of a Blower Door Test on their Website as well.
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- Melissa McDonald: Thanks! This tip was very helpful to me. My father-in-law is changing out his lights to be more energy efficent and was trying to decide between comp
- Energy Admin: If you would like us to assist you, we have an incense free electric smoke stick to find leaks.
- Energy Admin: There are a lot of solutions that you can accomplish yourself for little or no money. Our specialty is in helping you set goals and planning your ener