Phillips County, AR Insulation Payback
Attic insulation payback for Phillips County, AR
Phillips County, Arkansas is zone 3 under DOE's climate map (Mixed-Humid), which means a genuine mix of cold winters and humid summers, with neither one dominating the bill. An uninsulated attic there should be built up to R-49. For an attic around 1,000 square feet, closing the gap from R-2 to R-49 costs around $2,820 and saves an estimated $1,124 a year — payback in roughly 2.5 years. Hard to find a home improvement with a faster payback than this.
Where the savings come from
Of that, about $809/year comes from reduced heating and $315/year from reduced cooling load through the ceiling. Phillips County beats 26% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 690 counties DOE places in zone 3, Phillips County ranks 201st. Against Arkansas's own average of $1,185/year, Phillips County runs 5% below that.
Phillips County's actual weather, not a national average
The heating and cooling degree days behind this estimate — 3,050 HDD and 1,974 CDD (base 65°F, 1991-2020 normals) — come from SAINT CHARLES, AR US, the nearest NOAA station with published normals, 15.8 miles from Phillips County's center. Combined heating and cooling load puts Phillips County in the 27th percentile of this 3,162-county dataset. DOE also classifies Phillips County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
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 $151/year saved (~10.7-year payback). It is close - the payback only just fits a reasonable timeframe.
Getting it done in Phillips County
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $2,820 as a starting estimate for a Phillips County job, not a quote. Expect at least a $600 minimum charge from most contractors.
More on how this was built
Nothing here is a guess: the methodology guide names the DOE climate map and NOAA station data behind every number on this page. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.