Editor’s note
The following abstract describes a publication that is only available as a downloadable PDF.

CoverDeveloped by Montana State University Extension and the University of Wyoming
Adapted with permission

This guide is one in the Exploring Energy Efficiency and Alternatives (E3A): Energy Management for Home series. This one covers insulating the outside walls of your home to keep heating and cool costs down.


  • Brick or stone walls
  • Fiberglass batt or blanket insulation
  • Insulating side walls
  • Loose-fill cellulose
  • Rigid polystyrene board
  • Solid walls
  • Wall insulation strategies


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