Larue County, KY Insulation Payback
Larue County attic insulation, by the numbers
Larue County sits in IECC climate zone 4 (Mixed-Humid) — a genuine mix of cold winters and humid summers, with neither one dominating the bill. For a currently uninsulated attic, DOE and ENERGY STAR recommend building up to R-60. Going from R-2 to the recommended R-60 costs roughly $3,480 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 2.6 years at an estimated $1,321/year saved. Topping up the attic pays for itself fast here.
The breakdown behind the number
Split it out and it's roughly $1,125 a year on the heating side, $196 on cooling. By estimated insulation savings, Larue County lands in the 40th percentile nationally. Zone 4 alone covers 825 counties in this dataset, and Larue County comes in 541st by savings. Kentucky averages $1,385/year across the counties tracked here; Larue County comes in 5% lower.
Where these numbers come from
Larue County's climate figures — 4,208 heating and 1,219 cooling degree days a year — are read from HODGENVILLE LINCOLN P, KY US, 2.3 miles away, NOAA's nearest 1991-2020 normals station. Combined heating and cooling load puts Larue County in the 38th percentile of this 3,162-county dataset. One local detail the R-value alone won't tell you: Larue County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
The smaller top-up scenario
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $193/year saved — roughly 11.8 years to break even. Call this borderline rather than a clear win.
Next steps for a Larue County attic
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $3,480 figure above as a planning number for Larue County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Where these figures come from
Larue County's R-60 target and its degree-day figures both come from named federal sources - see the methodology guide for exactly which ones. The guide to what R-value actually means explains why R-60 is the target here specifically.