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Insulation R-Value Calculator
Check if the composite R-value of your wall assembly meets climate zone minimums.
Drywall R-Value
Insulation R-Value
Sheathing R-Value
Siding R-Value
Air Film R-Value
Climate Zone
Zone 1-2 (Hot)
Zone 3 (Warm)
Zone 4-5 (Mixed)
Zone 6-7 (Cold)
Zone 8 (Subarctic)
CALCULATE
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