Calcolatore Isolamento Gratuito
Calcola la quantità di isolamento necessaria in rotoli o materassini. Inserisci le dimensioni della parete e l'interasse dei montanti.
93 in for 8ft walls, 105 in for 9ft walls
Batts Needed
52
Batts Needed vs Total Area to Insulate
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
Esempio Risolto
500 sq ft of wall area with 16-inch OC studs, 93-inch batts, R-13.
- 01Batt width = (16 - 1) / 12 = 1.25 ft
- 02Batt length = 93 / 12 = 7.75 ft
- 03Coverage per batt = 1.25 × 7.75 = 9.69 sq ft
- 04Batts needed = 500 / 9.69 = 51.6 → 52 batts
Domande Frequenti
What R-value do I need for exterior walls?
In most US climate zones: R-13 for 2×4 walls and R-19 to R-21 for 2×6 walls. Check local building codes for specific requirements in your area.
What R-value for an attic?
R-30 is minimum in moderate climates. R-38 to R-49 is recommended in cold climates. The DOE recommends R-38 to R-60 for most of the United States.
Can I compress insulation to fit?
Compressing batt insulation reduces its R-value because R-value depends on the trapped air spaces. Always use the correct thickness for the desired R-value.
Impara