Insulation Calculator
Calculate the recommended insulation thickness and R-value for your project.
Climate Zone
-- Select --
Zone 1 (Hot)
Zone 2 (Mixed)
Zone 3 (Cold)
Please select a climate zone.
Insulation Type
Fiberglass
Cellulose
Spray Foam
Area to Insulate (sq ft)
Enter a valid area greater than 0.
Current R-Value
Enter a non-negative number.
Desired R-Value
Enter a desired R-value greater than 0.
Material Cost per sq ft ($)
Enter a cost per sq ft.
Calculate
Result
Formula:
Added R = Desired R - Current R. Thickness = Added R / R-value per inch. Total Cost = Area × Cost per sq ft.