Building Works USA

Performed some AAMA 501.1 dynamic leak testing yesterday. 40 mph wind load and 8" per hour simuulated rain event. No leaks👍

Here are a few photos of a 4-plex we tested for the 2012 IECC energy code. The allowed air leakage rate is 4.0 Air Changes per Hour (ACH). This unit was built in 2016/2017 and tested at 9.2 ACH, well above the air changes allowed under the code in place at time of construction. We were not asked to come back and test it a third time. The builder did find someone to test it and it passed. It's highly likely the contractor paid another firm to get this one to pass.
In an effort to help the contractor correct issues with air leakage, we provided thermal imaging to help identify points of air leakage through the building enclosure.
Make sure you know what you are getting when buying a new or previously built home or commercial property.