Blower Door Test Procedure

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Blower door test procedure.

Typically done under negative pressure the fan sucks the air out of the home causing it to come in through whatever pathways it can find. Window and door. Plan to do a walk through of your home with the auditor. So far it seems clear.

Ordinary least squares regression analysis is then used to calculate the leakage characteristics of the building envelope. Typical p n building values are 5 10 20 30 40 and 50 pascal. If you heat with wood be sure all fires are completely out not even coals before the auditor arrives. Take the following steps to prepare your home for a blower door test.

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. Test procedures are fairly straightforward. Be prepared to point out areas that you know are. Measure the airflow through the fan with the duct system at pressure.

Bill van der meer. When the fan is turned on it creates a pressure difference between the outside and the inside. Standardization of the test procedure allows the air leakage of one. If it s a hot humid or cold day when you run the blower door first you re making the house uncomfortable for the whole time you re setting up the duct leakage tests.

Detailed instructions are usually provided by the supplier or manufacturer of the blower door kit. Instead do all your setup upfront. For the blower door test it is specified that the test must be undertaken to en13829 method a and that the blower door reference volume called vn50 in the phpp is the full internal air volume of the building under test. Using a blower door and pressure pan for diagnostic purposes only using a blower door only not recommended the basic idea behind using a duct leakage tester to test for duct leakage is.

The multi point blower door test procedure results in a series of known values of q n fan and p n building. These leakage characteristics of the building envelope can then be used to calculate how much airflow will be induced through the building envelope for a given. Door fan test for determining of minimum hold time according to iso 14520. Then run your two duct leakage tests.

Use a calibrated fan to pressurize the duct system. Once you ve got those results unseal the vents and run your blower door test. A blower door test is used on buildings in order to quantify the amount of air leakage through its enclosure. All season testing procedure for detecting air leakages with blowerdoor and thermography.