Calculates the total R-value of insulation materials based on their individual R-values and thicknesses.
Start with your values, or try a preset.
Enter R-value of Layer 1, Thickness of Layer 1, R-value of Layer 2, Thickness of Layer 2, R-value of Layer 3, and Thickness of Layer 3 in the units shown.
Read Total Thickness and Total R-value in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
R-value of Layer 1: 13 R-value; Thickness of Layer 1: 3.5 inches; R-value of Layer 2: 0 R-value; Thickness of Layer 2: 0 inches; R-value of Layer 3: 0 R-value; Thickness of Layer 3: 0 inches
Total Thickness: 3.5 inches; Total R-value: 13 R-value
R-value of Layer 1: 21 R-value; Thickness of Layer 1: 5.5 inches; R-value of Layer 2: 0 R-value; Thickness of Layer 2: 0 inches; R-value of Layer 3: 0 R-value; Thickness of Layer 3: 0 inches
Total Thickness: 5.5 inches; Total R-value: 21 R-value
R-value of Layer 1: 13 R-value; Thickness of Layer 1: 3.5 inches; R-value of Layer 2: 13 R-value; Thickness of Layer 2: 3.5 inches; R-value of Layer 3: 0 R-value; Thickness of Layer 3: 0 inches
Total Thickness: 7 inches; Total R-value: 26 R-value
Continue with another tool on a related topic.
Estimates how many items or boxes fit on a standard pallet or how many pallets are needed for a shipment.
Calculates the number of light bulbs needed to adequately illuminate a room based on its dimensions, desired light level, and bulb specifications.
Converts a decimal inch measurement into its equivalent fractional representation (inches and fractions of an inch).
Calculates the taper length and angle based on the large diameter, small diameter, and taper length.