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:
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.
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