What effect does air sealing have on heat flow due to air movement?

Air sealing plays a pivotal role in managing heat flow within a building by minimizing air movement between the interior and exterior. When a building is properly air sealed, the infiltration of outside air decreases, thereby reducing convection currents and drafts that can carry heat away from the living space during colder months or allow heat to enter during warmer months.

This reduction in air leakage leads to a more stable indoor temperature by limiting the escape of conditioned air and the entry of unconditioned air, ultimately resulting in decreased energy loss. Consequently, air sealing effectively reduces heat flow in regions where it could negatively impact energy efficiency, making spaces more comfortable and less reliant on heating or cooling systems. Thus, it is accurate to say that air sealing reduces heat flow due to unwanted air movement.