How Much Insulation Does a Home in Louisiana Need?
Louisiana’s insulation numbers aren’t one-size-fits-all: the state’s 64 parishes fall into two different IECC climate zones, and the recommended attic…
How Much Insulation Does a Home in Kentucky Need?
Kentucky sits entirely in IECC climate zone 4A, which means the ENERGY STAR retrofit table calls for R60 in an uninsulated attic (or R49 if you already…
How Much Insulation Does a Home in Kansas Need?
Kansas homes fall into two different insulation requirements, not one. The state’s 105 counties split between IECC climate zone 4A (88 counties) and zone…
How Much Insulation Does a Home in Iowa Need?
Iowa’s 99 counties split between two IECC climate zones, but the insulation math lands in the same place for both.
How Much Insulation Does a Home in Indiana Need?
Indiana doesn’t have one insulation answer. The state splits across two federal climate zones, and the ENERGY STAR-recommended R-values shift depending…
How Much Insulation Does a Home in Illinois Need?
Illinois spans two IECC climate zones, so the right R-value depends on which of the state’s 102 counties a home sits in, not on a single statewide number.
How Much Insulation Does a Home in Idaho Need?
Idaho spans two IECC climate zones, 5B and 6B, split fairly evenly across its 44 counties.
How Much Insulation Does a Home in Hawaii Need?
Hawaii sits entirely in IECC climate zone 1A, the mildest zone the code recognizes, and every island shares it.
How Much Insulation Does a Home in Georgia Need?
Georgia doesn’t have one insulation answer. The state splits across two IECC climate zones, 3A and 2A, and the right R-value depends on which one covers…
How Much Insulation Does a Home in Florida Need?
Florida doesn’t have one insulation number. Sixty-three of its 67 counties sit in IECC climate zone 2A, where ENERGY STAR recommends R49 attic insulation…