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Commercial Senior Certified


Building Envelope Physics

Air Movement

Air leakage describes unintentional and uncontrolled airflow through a building envelope or enclosure. This lesson examines the effects of infiltration and exfiltration through wall systems on the performance of building systems.

Learning Objectives

At the conclusion of this lesson, you will be able to:

  • Identify the basic air transport mechanisms
  • Describe the common airflow pathways through the envelope
  • Compare air-resistant materials
  • Explain the impact of air leakage on commercial buildings

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