What ASTM is typically the default standard used in many North American jurisdictions?

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 correct answer is based on the widespread adoption of ASTM E779 as the standard for whole-building air leakage testing in North America. ASTM E779 provides a standardized method for measuring the air leakage rate of buildings, which is essential for evaluating energy efficiency and building performance.

This standard includes specific test methodologies and conditions, making it highly applicable for various building types and conditions. Its recognition and usage across many jurisdictions establish it as the default choice for professionals conducting airtightness testing in residential and commercial buildings.

While the other standards listed may address related topics, such as specific airflow measurement techniques or alternative methods, ASTM E779 remains the primary standard favored by many building codes and energy efficiency programs in North America. Understanding this context helps inform professionals about the importance of adhering to recognized and validated standards in their testing practices.

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