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An attic insulation calculator determines the thickness and R-value of insulation needed to meet energy code requirements for a specific climate zone. The US Department of Energy recommends R-38 to R-60 for attics in most climates. A 1,000 sq ft attic needing R-49 requires about 17 inches of blown fiberglass.

Guide étape par étape

1Input base values
2System computes results

Exemples résolus

Entrée

Enter the required values

Résultat

Result computed by the formula

Erreurs courantes à éviter

✕Precision loss
✕Ignoring variables

Questions fréquentes

What does this calculator do?

Input base values

How do I use this calculator?

System computes results

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