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Rule Your Attic Tool

Does your attic insulation measure up?

"rule your attic" for comfort and savings Energy Star logo

Investments in attic insulation will save you money on heating and cooling plus keep you comfortable.


Use this calculator to see how much insulation you may need, rebate amounts and payback period.


Columbia Water & Light recommends having 18 inches of attic insulation (R-50). We will help finance your project with rebates and loans through our  opens in a new windowHome Performance with Energy Star program.


How much will you save?

Use these estimates to find out how much you could save on heating and cooling in a year by improving your attic insulation to 18” (R-50).

a visual example of how much insulation is appropriate for attic space

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701 E Broadway, Columbia, MO 65205


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