Blower door

What is a blower door? A blower door is a machine used to measure the airtightness of buildings. 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. The BlowerDoor MultipleFan System was developed for airtightness measurements of large industrial and administrative buildings.

As a modular system, it can be used also for single-family homes and apartment buildings using one or two BlowerDoor fans.

Commercial blower door. A standard blower door test uses the fan to depressurize the house to Pascal ( inches of water). The fans are normally variable speed to allow them to be adjusted until the precision manometer (pressure gage) indicates that the pressure difference between the house and outside is exactly Pa. A calibrated fan fits inside the frame and canvas to either pressurizes or depressurizes the building.

Take the following steps to prepare your home for a blower door test: If you heat with woo be sure all fires are completely out - not even coals - before. Expect the auditor to request access to all areas of your home including closets,. The Window and Door Measurement System allows you to determine the joint permeability of building components in a simple and accurate way.

Retrotec has been manufacturing blower door and duct testing equipment for over years. We can usually reply with a better offer in minutes or less! Need a blower door training system? Jamie Langan, BPI-certified building science professional, provides a step-by-step tutorial on how to perform a blower door test.

Our equipment is professional and calibrated in accordance with national standards. The fan pulls air out of the house, lowering the air pressure inside. The higher outside air pressure then flows in through all unsealed cracks and openings. The auditors may use a smoke pencil to detect air leaks.

The blower door test is part of the energy evaluation of your home. It is a performance test that uses a device to verify the air tightness of your house, which means that it measures the amount of outdoor air that enters your home. During this test, the advisor goes through your home to locate the possible air leaks. In other words, the test is used to determine how much your home leaks.

Passing the test is equal to a result of air changes per hour (ACH) or less. An air door or air curtain is a device used to prevent air or contaminants from moving from one open space to another. The most common use is a downward-facing blower fan mounted over an entrance to a building, or an opening between two spaces conditioned at different temperatures.

TEC WiFi Link for DG-700. Blower Door Test procedure a thermography to visualize areas cooled by airflows. Energy Saver, we know where to find air leaks in your home. However, we also use some specialized equipment to get a complete picture of how your home is losing energy. We use a blower door test to identify key problem areas in the home.

By depressurizing the entire house, specific leakage areas can be located. Blower door is used to test the efficiency of a home as part of our HERS rating services. The amount of air drawn in provides valuable data in determining how air-tight, and thus how efficient, a home is. When it comes to verifying and documenting the efficiency of a home, the blower door provides valuable data used to provide an accurate score.

The way that air flows through a building can have a serious impact on air quality, comfort and energy expenses. So far, it seems clear.