Air Barrier Details (Preview Only)

In modern houses, the biggest gaps in the air barrier tend to occur within complicated framing assemblies and points of framing intersection. For good air barrier performance, it’s important to plug those big air leaks with solid materials at the time the house is framed, not at a later stage of construction. This lesson takes a detailed look at some of the typical offenders in a modern house and how to block up those major air leaks so they won’t allow airflow to bypass or compromise the home’s insulation.

Learning Objectives

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

• List the common framing junctures that are typically associated with air leakage and thermal bypasses
• Explain how air leakage can compromise the effectiveness of insulation in floors and kneewalls
• Identify materials that are effective at blocking air leaks within framing assemblies
• Describe suitable methods to create tighter framed assemblies

Next Step: Watch the video presentation