Is it true that the standard ASTM E779 - 19 is limited to single zone testing?

Prepare for the ABAA Whole-Building Airtightness Testing Level 1. Master the concepts with various study materials including flashcards and practice questions. Get ready to ace your exam effortlessly!

The statement is true because ASTM E779-19 specifically addresses the methodology for conducting air leakage tests on buildings using the single-zone (or single-point) testing approach. This standard outlines how to measure air leakage in a defined volume of a building using pressurization or depressurization techniques.

While single-zone testing is the primary focus of ASTM E779-19, it’s important to note that for complex buildings with multiple zones or different air pressure characteristics, other standards or methodologies may be employed to accurately assess airtightness throughout the entire structure. Understanding the limitations of the standard helps in determining when additional testing approaches are necessary.

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