Which Saves More on Heating & Cooling: Wall Insulation or New Windows?

Answered by Brendan ~ September 15, 2010 ~ No Comments » | Respond to this question

50-year old home in Denver, Colorado, is of 2 x 4" frame construction, and has eight single pane windows. What expenditure will improve my utility costs more--having the walls and attic pumped with insulation or replacing the windows with good vinyl double-pane windows?

Barbara O. ~ Denver, Colorado

Brendan Fowler

Spend your money insulating your walls and attic. I would go no less than R-38 in your attic and R-19 in the walls if you can. Windows would be nice, but without wall and attic insulation it would be kind of like putting the carriage in front of the horse.

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