Series Video 4 - Building Airtightness Testing

The fourth video in the 2023 NBC(AE) educational series “Airtightness Testing” is now available! This video provides details on the introduction of the new code section on airtightness, explains what airtightness is, how to measure and test it, and outlines the differences between NLR, NLA, and ACH. Additionally, it offers insights into increasing the airtightness of a home and explains how blower door tests are conducted.
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[@MaydayInspect]

Great video with lots of valuable insights.