Cleburne County, AL Insulation Payback
Cleburne County attic insulation, by the numbers
DOE classifies Cleburne County as climate zone 3, mixed-humid — real heating and real cooling seasons both, roughly balanced across the year. Its recommended attic R-value for bare joists is R-49. Going from R-2 to the recommended R-49 costs roughly $2,820 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 2.6 years at an estimated $1,082/year saved. Topping up the attic pays for itself fast here.
Where the savings come from
Split it out and it's roughly $847 a year on the heating side, $235 on cooling. By estimated insulation savings, Cleburne County lands in the 23th percentile nationally. Zone 3 alone covers 690 counties in this dataset, and Cleburne County comes in 284th by savings. Alabama averages $1,001/year across the counties tracked here; Cleburne County comes in 8% higher.
Cleburne County's actual weather, not a national average
NOAA's HEFLIN, AL US station, 5.7 miles from Cleburne County, supplies the 3,193 HDD and 1,474 CDD this estimate runs on. Combined heating and cooling load puts Cleburne County in the 16th percentile of this 3,162-county dataset. One local detail the R-value alone won't tell you: Cleburne County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
If the attic isn't bare
A shallower starting point changes the math: with R-11 already down, only the gap to R-38 needs filling, at roughly $1,620 for an estimated $146/year saved (~11.1-year payback). Call this borderline rather than a clear win.
Getting it done in Cleburne County
Get more than one quote before committing. Attic access and any needed air sealing move the price around, and most contractors won't take a job below roughly $600 regardless of size - worth asking upfront given Cleburne County's estimated $1,082/year on the line.
Where these figures come from
Cleburne County's R-49 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-49 is the target here specifically.