Insulation Calculator
Calculate
Formula
Packages Needed = Area ÷ Coverage per Package (varies by R-value). Thickness depends on the R-value selected.
Frequently Asked Questions
What R-value do I need?
R-13 is common for exterior walls, R-19 for floors, and R-30 to R-49 for attics depending on your climate zone.
What does the R-value mean?
R-value measures thermal resistance. A higher R-value means better insulating performance.