Air leaks are one of the most common and unknown causes of energy loss in a home. Air leakage in your home occurs when outside air enters and conditioned air leaves your house uncontrollably through cracks and openings.
If your home is leaking air, it can cause high energy bills and poor indoor air quality.
To make your home as energy efficient as possible it should be as airtight as possible, while still allowing proper air exchange with the outside. Sealing these areas of leakage will also help reduce drafty areas and cold spots in your home which will improve your homes comfort.
During cooler seasons when the weather is cold or windy weather, too much air may enter your home and during the warmer seasons when the weather is warmer and less windy, not enough air may enter which can result in poor indoor air quality. Air leakage also contributes to moisture problems that can affect your families health and your homes structural durability.
There are a few signs that indicate that your home may be leaking air and that you may be losing energy - such as drafts or hot and cold spots in your home - especially around windows and doors. Floors, walls and ceilings are a home’s biggest source of energy loss, consisting of approximately 30% of total air leaks. Air ducts are number two, following at 15%.
Most Common Sources of Air Leaks:
A certified BPI Building Analyst will perform what is called a blower door test to check the areas of leakage within your home and the envelope of your home.
A blower door is a powerful fan mounted unit that we will install in your main doorway. It works by depressurizing your home (blowing the air out of the house to temporarily lower the air pressure inside). The pressure of the outdoor air causes the air to flow into the house through all unsealed openings, revealing any undetected leaks.
Our Building Analyst will perform a complete walk through of your home during this test using a smoke pen as needed to detect leaks and determine the total air infiltration rate of your home.
How to Prepare for a Blower Door Test:
During the blower door test and walk through of your home our Building Analyst will point out all areas of leakage. He will provide on site recommendations that you can perform yourself, as a homeowner. These recommendations will be small fixes that can save you a lot of money in the long run and make your home more comfortable.
After we leave your home, we will return to the office and generate a detailed report of our findings including each recommendation that was made to you during the blower door test and energy audit. Your report will include pictures and details specific to just your home.
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CalRATERS Energy Experts
9260 Alcosta Blvd, Suite C23, San Ramon CA 94583
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