Air Sealing: Leaks, Insulation, Sealing and Ventilation

In this lesson, typical air leaks, air leak pathways and air infiltration areas are examined. Insulation and air sealing measures are shown for knee walls, open top walls, porch framing on two story homes, open floor/wall intersections, level changes, cantilevers and row house roofs. Changing needs for ventilation associated with increased tightness resulting from air sealing are examined. Performance of Infrared Thermography tests are also shown.

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