Get Blower Door Testing Results Form (PDF) - City Of Boca Raton

The blower door test takes the guess work out of detecting air leaks in a structure; however, most contractors would like to pass the blower door test the first time. It is estimated that 50% of newly constructed homes will fail the blower door or air-tightness test.

A blower door test is a great way to know whether your home is leaking precious heat or air conditioning. The typical cost for a blower door test is between $200 and $450, with most homeowners paying an average of $325.

Still, single-unit blower door tests are valuable, as they will uncover air leakage spots in the building envelope and spots between adjacent units. Both are worth identifying, as controlling building envelope leaks will help boost energy efficiency and limiting leaks between units will maximize temperature control.

Without a passing test, most jurisdictions will not issue an occupancy certificate. It's beneficial to pass a test the first time. There are a few ways to almost guarantee a passing test. The best way is to understand where houses leak air and design an air sealing strategy with that in mind.

Generally, a blower door test, when combined with a whole home energy audit, should take approximately 1-2 hours. The blower door test itself can run for about a half an hour.

Home energy professionals use a blower door as a diagnostic tool to determine how much air is entering or escaping from your home. Professional energy assessors use blower door tests to help determine a home's airtightness.

Still, single-unit blower door tests are valuable, as they will uncover air leakage spots in the building envelope and spots between adjacent units. Both are worth identifying, as controlling building envelope leaks will help boost energy efficiency and limiting leaks between units will maximize temperature control.

10 Steps for Conducting a Blower Door Test Confirm that all open-flame areas are extinguished and dampers are closed. ... Create an airflow path. ... Turn off any gas appliances. ... Mount the blower door into one of the exterior openings. ... Take an outdoor pressure reading. ... Turn on the fan and run the test. ... Inspect for leaks.

During a blower door test, the interior air pressure needed to be maintained in order to gather useful data is 50 pascals, which is roughly equal to the pressure created when a 20-mph wind hits the building.