Methods of Heat Transfer: Convection

Air leakage drives out the conditioned air in homes. Nationwide, air infiltration and exfiltration accounts for the majority of a home's conditioning costs. This lesson demonstrates the importance of air sealing to the thermal performance of homes, and explains the close link between air leakage and moisture problems.

Learning Objectives

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

• Explain how air leakage and moisture migration are related
• Identify the five factors affecting convection
• Calculate heat losses due to infiltration
• Describe the impact of air infiltration on the heating and cooling performance of a building

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