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Building Envelope Air Tightness

Steven G. Liescheidt, P.E., CCS, CCPR

Infiltration in commercial buildings can have many negative consequences, including reduced thermal comfort, interference with the proper operation of mechanical ventilation systems, degraded indoor air quality, moisture damage of building envelope components, and increased energy consumption. The objective of the study used in this exam was to investigate the impact of envelope airtightness on the energy consumption of typical commercial buildings in the U.S. Despite common assumptions that envelope air leakage is not significant in office and other commercial buildings, measurements have shown that these buildings are subject to larger infiltration rates than commonly believed.

Investigation of the Impact of Commercial Building Envelope Airtightness of HVAC Use, National Institute of Technologies - NISTIR 7238 June 2005.

This course includes a multiple-choice quiz at the end, which is designed to enhance the understanding of the course materials.

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NY PE & PLS: You must choose courses that are technical in nature or related to matters of laws and ethics contributing to the health and welfare of the public. NY Board does not accept courses related to office management, risk management, leadership, marketing, accounting, financial planning, real estate, and basic CAD. Specific course topics that are on the borderline and are not acceptable by the NY Board have been noted under the course description on our website.