By: Jeanne Huber
Published: September 21, 2010
Add attic insulation to lower heating and cooling costs by as much as $600 per year.
Save about $600 per year by boosting the amount of attic insulation from R-11 to R-49. Depending on the type of materials you use, figure on paying an insulation contractor about $1,500 to insulate an 800-square-foot attic, which pays back your investment in three years. You’ll spend about half that to do the job yourself.
Do you need more attic insulation?
A good, quick way to check if you need insulation is to look across your attic floor. If the existing insulation comes up just to the tops of the joists, then you probably need to add insulation. If you can’t see the joists and the insulation is well above the tops of the joists, you’re probably okay and you won’t recoup the cost of adding more.
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