CalcMountain

Insulation Calculator

Estimate insulation material needed for walls, attics, and floors. Select the R-value for your climate zone and get batt/roll counts and coverage.

Inputs

Walls: R-13 to R-21. Attic: R-30 to R-60.

Results

Rolls Needed

30

Thickness

9.5"

Estimated Cost

$1,350.00

Insulation Breakdown

ItemValue
Total Area1,200 sq ft
R-ValueR-30
Batt Thickness9.5 inches
Stud Spacing16" on center
Roll Coverage~40 sq ft per roll
Rolls Needed30
Batts Equivalent240 batts (15" x 48")
Estimated Cost$1,350.00

Frequently Asked Questions

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