Report Number




Air Flow; Buildings


Commissioning involves three major elements - 1) process, 2) standards, and 3) protocols to verify compliance with the standards. Process is the step-by-step oversight of and involvement in the design, build, and start-up of the facility, to make sure that the design matches the customer's needs, that the design is consistent with good building science practice, that construction matches the construction documents, and that systems and system interactions are properly tested at start-up. This paper does not address process, rather it focuses on the second and third elements -- standards and compliance protocols. It presents standards related to airtightness, air flows, air distribution system, and pressure differentials against which acceptable building operation can be assessed. It also presents diagnostic methods for assessing building air flows, pressure differentials, the location of the primary air and thermal boundaries of the building, return air restrictions, air distribution system airtightness, and building envelope airtightness, and verifying that these elements meet the standards for a good building.

Date Published



Reference Publication: Cummings, J.B. 1998. "Standards and Verification Protocols for Commissioning Air Flows in Buildings". Proceedings of the Sixth National Conference on Building Commissioning. Lake Buena Vista, FL. May 1998.

Local Subjects

Buildings - Air Flow


FSEC Energy Research Center® Collection



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