Glascock County, GA Insulation Payback
Glascock County attic insulation, by the numbers
DOE classifies Glascock County as climate zone 3, mixed-humid — heating load in winter and cooling load in summer, both worth taking seriously here. Its recommended attic R-value for bare joists is R-49. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-49 runs an estimated $2,820, and saves about $1,011 a year in heating and cooling — a payback around 2.8 years. Topping up the attic pays for itself fast here.
The breakdown behind the number
Split it out and it's roughly $722 a year on the heating side, $289 on cooling. By estimated insulation savings, Glascock County lands in the 18th percentile nationally. Zone 3 alone covers 690 counties in this dataset, and Glascock County comes in 444th by savings. Georgia averages $974/year across the counties tracked here; Glascock County comes in 4% higher.
Glascock County's actual weather, not a national average
Glascock County's climate figures — 2,722 heating and 1,813 cooling degree days a year — are read from WARRENTON, GA US, 12.1 miles away, NOAA's nearest 1991-2020 normals station. Combined heating and cooling load puts Glascock County in the 12th percentile of this 3,162-county dataset. One local detail the R-value alone won't tell you: Glascock County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
Already have some insulation?
Already have a few inches up there? Topping R-11 up to R-38 runs about $1,620 for about $136/year saved — roughly 11.9 years to break even. Call this borderline rather than a clear win.
Getting it done in Glascock County
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $2,820 figure above as a planning number for Glascock County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Where these figures come from
Glascock 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.