Panola County, TX Insulation Payback
Panola County attic insulation, by the numbers
DOE classifies Panola County as climate zone 3, hot-humid — humid heat for much of the year, with cooling running far more than heating ever does. 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 2.9 years at an estimated $987/year saved. Topping up the attic pays for itself fast here.
Where the savings come from
Split it out and it's roughly $600 a year on the heating side, $387 on cooling. By estimated insulation savings, Panola County lands in the 16th percentile nationally. Zone 3 alone covers 690 counties in this dataset, and Panola County comes in 494th by savings. Texas averages $1,035/year across the counties tracked here; Panola County comes in 5% lower.
Panola County's actual weather, not a national average
Panola County's climate figures — 2,263 heating and 2,428 cooling degree days a year — are read from CARTHAGE, TX US, 2 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Panola County sits at the 16th percentile nationally. One local detail the R-value alone won't tell you: Panola 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 $133/year saved (~12.2-year payback). Call this borderline rather than a clear win.
Next steps for a Panola County attic
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 Panola County's estimated $987/year on the line.
Where these figures come from
Panola 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.