What Is A Blower Door

While a blower door test does not evaluate how well a structure is insulated it can reveal drafty walls and air bypass situations that could undermine otherwise well insulated wall assemblies.

What is a blower door.

A blower door is a diagnostic tool designed to measure the airtightness of buildings. It is designed to check for air leaks in walls attics and mechanical penetrations. What is a blower door test. A blower door test is a machine used to calculate airflow between the interior and exterior of a structure measure the airtightness of buildings and identify spots where air is leaking through a building envelope.

A blower door is a machine used to measure the airtightness of buildings. 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. The fan blows air out of the house lowering the inside air pressure. A blower door is simply a diagnostic tool used to measure how much air filters out of your house your home s airtightness.

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. A powerful variable speed fan mounts into the frame. Once set up into the opening the fan of the blower door is used to either suck air out of the building depressurise or blow air into the building pressurise in order to create a pressure difference between the outside and the inside. The higher outside air pressure then flows in through all unsealed cracks and openings.

There are three primary components to a blower door. How the blower door works. The auditors may use a smoke pencil to detect air leaks. A blower door test is used on buildings in order to quantify the amount of air leakage through its enclosure.

1 a calibrated variable speed fan capable of inducing a range of airflows sufficient to. And to help locate air leakage sites. A blower door is a powerful fan that mounts into the frame of an exterior door. A temporary blower door equipped with a powerful fan is fitted into the frame of an existing front or back door and when the fan is turned on it sucks the air out of the house and blows it.

A blower door consists of a calib. The blower door test. The blower door allows testers to apply a consistent and measurable pressure to the house so that houses can be compared accurately. This test ensures a certain level of energy performance and is often used when a project team is.

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.