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Insulation Calculator
Calculate insulation thickness and quantity needed to reach any R-value. Supports fiberglass batts, blown insulation, spray foam, and rigid foam.
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Características Principales — Insulation Calculator
6 insulation types with R-value per inch
R-value presets R-13 through R-60
Thickness needed in inches
Bags or rolls to buy
5% waste included
Por Qué Usar Esta Herramienta — Insulation Calculator
Gratis en Línea Insulation calculatorR value calculator — para TodosRápido y Fácil How much insulation do i needBlown insulation calculator — 100% GratisGratis en Línea Attic insulation calculator
Privacidad Primero
Todo el procesamiento ocurre en tu navegador. Tus datos nunca salen de tu dispositivo.
Ultra Rápido
Obtén resultados instantáneos sin tiempo de espera. Sin retrasos de servidor.
Funciona en Todos Lados
Usa en cualquier dispositivo — escritorio, tablet o teléfono. Sin descargas necesarias.
Preguntas Frecuentes — Insulation Calculator
What R-value do I need?
DOE recommendations: Attic Zone 1-2: R-30 to R-60; Zone 3-4: R-38 to R-60; Zone 5-8: R-49 to R-60. Walls: R-13 to R-21.
What is R-value?
Thermal resistance — higher = better insulation. R-values are additive across layers.
Bags of blown insulation?
Each bag is labeled with coverage charts. This calculator uses adjustable coverage per bag to match your product.