Minimum Insulation R-value Requirements

STATEAPPLICABLE CODEASHRAE ZONEMINIMUM R-VALUESTATE & LOCALALA labama2015 Alabama Commercial energy Code2R-253R-25 STATE & LOCALAKA laska2012 Alaska building energy Efficiency Standard7R-358R-359R-40LO C A L O N LYAZA rizonaNo statewide mandated R values Phoenix - 2012 IECCYuma - 2009 IECC Tucson - 2012 IECCF lagstaff - 2009 IECC2R-202R-202R-205R-20S TAT E O N LYAR ArkansasArkansas Enery code for New building Construction3R-204R-20S TAT E O N LYCAC alifornia2016 building energy Efficiency Standards2R-253R-254R-305R-306R-30 STATE & LOCALCOC olorado2012 IECC4R-255R-256R-307R-35S TAT E O N LYCTC onnecticut2016 Connecticut State building Code5R-25 STATE & LOCALDED elawareASHRAE 20104R-20S TAT E O N LYDCD istrict of Columbia2012 IECC4R-25S TAT E O N LYFLF lorida2014 florida building code , energy Conservation1R-202R-20S TAT E O N LYGAG eorgia2011 Georgia State Minimum Standard energy code 2R-203R-204R-20S TAT E O N LYHIH awaii2015 IECC1R-20 STATE & LOCALIDI daho2012 IECC5R-256R-30 STATE & LOCALILI llinois2015 IECC4R-305R-30S TAT E O N LYINI ndiana2010 Indiana energy conservation Code4R-205R-20 STATE & LOCALIAIowaIowa State energy Code5R-256R-30 STATE & LOCALKSK ansas2006 IECC4R-155R-20S TAT E O N LYKYK entucky2013 Kentucky B

STATE ONLY FL Florida 2014 Florida Building Code, Energy Conservation 1 R-20 2 R-20 STATE ONLY GA Georgia 2011 Georgia State Minimum Standard Energy Code 2 R-20 3 R-20 4 R-20 STATE ONLY HI Hawaii 2015 IECC 1 R-20 STATE & LOCAL ID Idaho 2012 IECC 5 R-25 6 R-30 STATE & LOCAL IL Illinois 2015 IECC

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