What testing method is specified by USACE 2012?

The correct answer is multi-point testing, as specified by the USACE 2012 guidelines. Multi-point testing is used in whole-building airtightness assessments to provide a comprehensive evaluation of a building's air leakage characteristics. This method involves conducting measurements at various points throughout the building's envelope, allowing testers to gather more data on how air behaves across different areas and conditions.

By incorporating multiple test points, this approach offers a greater understanding of the building's overall performance, highlighting both localized leakage issues and more extensive airflow patterns. This is particularly important for ensuring that buildings meet energy efficiency standards and provide adequate indoor environment quality. It contrasts with other methods, such as single-point or two-point testing, which may only provide limited insight into a building's leakage behavior and potentially overlook significant problem areas.

In summary, multi-point testing aligns with the USACE's emphasis on rigorous testing methods to ensure that structural integrity and energy efficiency are adequately addressed in construction and renovation projects.