Rowan County, KY Insulation Payback
Rowan County, KY: what topping up your attic actually costs
Rowan County sits in IECC climate zone 4 (Mixed-Humid) — heating load in winter and cooling load in summer, both worth taking seriously here. 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 2.4 years at an estimated $1,434/year saved. That's about as fast as attic paybacks get.
Heating vs. cooling in Rowan County
The estimated savings split roughly $1,265/year heating, $170/year cooling. Out of every 100 US counties tracked here, Rowan County's savings potential beats roughly 48 of them. Within zone 4 specifically, it ranks 305th of 825 counties by estimated savings. Kentucky averages $1,385/year across the counties tracked here; Rowan County comes in 4% higher.
Where these numbers come from
NOAA's CAVE RUN LAKE, KY US station, 8 miles from Rowan County, supplies the 4,730 HDD and 1,057 CDD this estimate runs on. By total degree days, Rowan County sits at the 47th percentile nationally. Rowan County falls in DOE's moisture regime A (humid), a detail that affects vapor-barrier recommendations more than the R-value target itself.
Already have some insulation?
A shallower starting point changes the math: with R-11 already down, only the gap to R-49 needs filling, at roughly $2,280 for an estimated $209/year saved (~10.9-year payback). This one is a genuine toss-up, not a clear yes.
Quotes and materials for this job
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 Rowan County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Nothing here is a guess
Every figure on this page traces to DOE/IECC climate zones and NOAA degree-day normals, documented in the methodology guide. The guide to what R-value actually means explains why R-60 is the target here specifically.