Since 1917
Recommended Insulation Finder

Find your Recommended Insulation R-Values*

Map provided by the U.S. Department of Energy
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* These recommendations are cost-effective levels of insulation based on the best available information on local fuel and materials costs and weather conditions. Consequently, the levels may differ from current local building codes. In addition, the apparent fragmentation of the recommendations is an artifact of these data and should not be considered absolute minimum requirements. Visit for more information