Calcolatore Isolamento — Formula
## How to Calculate Insulation
### Formula
**Batts Needed = Total Area / Coverage per Batt**
Batt width fits between studs: 15 inches for 16" OC studs, 23 inches for 24" OC studs. Batt length is typically 93 inches (8 ft walls) or 105 inches (9 ft walls). Choose R-value based on application:
- R-13: Standard 2×4 exterior walls
- R-19: 2×6 exterior walls
- R-30 to R-38: Attic floors
- R-49: Attic floors in very cold climates
### Formula
**Batts Needed = Total Area / Coverage per Batt**
Batt width fits between studs: 15 inches for 16" OC studs, 23 inches for 24" OC studs. Batt length is typically 93 inches (8 ft walls) or 105 inches (9 ft walls). Choose R-value based on application:
- R-13: Standard 2×4 exterior walls
- R-19: 2×6 exterior walls
- R-30 to R-38: Attic floors
- R-49: Attic floors in very cold climates
Esempio Risolto
500 sq ft of wall area with 16-inch OC studs, 93-inch batts, R-13.
- Batt width = (16 - 1) / 12 = 1.25 ft
- Batt length = 93 / 12 = 7.75 ft
- Coverage per batt = 1.25 × 7.75 = 9.69 sq ft
- Batts needed = 500 / 9.69 = 51.6 → 52 batts