Insulation Calculator

sq ft

Most of Michigan is zone 5 or 6; the Upper Peninsula is 7.

Fiberglass batts or loose fill are about R-3 per inch.

$

Batts needed

394 batts

Recommended R-value
R-60
R-value to add
60
Layers of batts
2
Total R-value after
R-60
Coverage per batt
5.33 sq ft
Material cost
$1,500

5% extra batts included for cutting. Targets follow ENERGY STAR / 2021 IECC recommendations (lower end of each range).

Open the full insulation calculator with the formula and FAQs at Calcs for Life