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Air Leakage for Buildings (IECC 2015 R402.4)
Since 2012, blower door air leakage tests have become mandatory tests, regardless of the path chosen for compliance.
The test consists of a large fan, which is installed on an exterior door of the home. The home is depressurized/pressurized to a difference of 50 Pascals, or 0.2 IWC with respect to the outside. The fan is then turned on to depressurize the home, and the leakage is measured.
At this pressure, the home should not leak any more than:
- Climate Zone 4: 5 Air changes per hour (ACH) at 50PA, 5ACH50 under Illinois Energy Conservation Code, and 3 ACH50 under the national IECC code.
- Climate Zone 5: 5 Air changes per hour (ACH) at 50PA, 5ACH50 under the Illinois Energy Conservation Code, and 3 ACH50 under the national IECC code.
This test should be performed when the house is completely finished. We like to tell our builders that when the cleaning crew is at the house, it’s the perfect time for a blower door test.
At Priority Energy, we are approved to provide blower door leakage tests nationally. Our testing crew is RESNET and/or BPI certified and is a recognized by the state of Illinois as a testing agency.
To schedule your IECC Blower Door test, get in touch or call 800-737-2299 today.
Priority Energy was recently rated the No. 1 Aeroseal dealer in Chicagoland; proudly serving builders, HVAC companies, home owners, and commercial property owners since 2010.
The Newman Restoration Group just completed a workshop with Mr. Schildgen on insulation. weatherization and indoor air quality. The one-day curriculum led students through building science principles and a hands-on practice with props.