Insulation ROI Calculator
Estimate insulation payback from heating savings.
Result
Annual savings
$270.00
Payback
9.3 years
Formula
Calculation logicFrequently asked questions
How does insulation pay back?
Project cost divided by annual heating plus cooling savings from reduced heat flow.
What is R-value?
Resistance to heat flow. Doubling R roughly halves loss through that surface.
Where first?
Attics typically return fastest, then air sealing, then walls and floors.
How much can I save?
Sealing plus attic upgrades cut heating and cooling 10 to 25 percent in leaky homes.
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