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Residential Senior Certified


Quality Insulation

It should come as no surprise that insulation is an important part of a home's thermal envelope. This lesson examines optimum insulation levels for foundations, walls, and ceilings, and revisits the impact of infiltration, exfiltration, and diffusion on conductive heat flows through the building enclosure.

Learning Objectives

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

  • Explain the relationship between the insulation package and its weatherization system
  • Distinguish between vapor diffusion and airflow, and describe their effects on insulation
  • Identify the many installation problems that can cause a wall system to fail
  • Clarify the impact of insulation failures on moisture and energy performance

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