Insulating and Air Sealing the Attic: Weatherization

Publication Type:
Fact Sheet

Published / Updated:

Insulation can vastly improve comfort and energy use in both hot and cold climates. Adding insulation and sealing unintentional cracks and openings improves energy efficiency in cold climates. In warmer climates, the installation of radiant barriers in the attic may help reduce cooling costs when combined with attic weatherization.

Download this fact sheet to learn about:

  • How insulation works
  • Performing an energy audit
  • Sealing gaps, cracks, and holes
  • Controlling attic ventilation
  • Adding insulation

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