Bladen County, NC Insulation Payback
Bladen County attic insulation, by the numbers
Bladen County, North Carolina is zone 3 under DOE's climate map (Mixed-Humid), which means heating load in winter and cooling load in summer, both worth taking seriously here. An uninsulated attic there should be built up to 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 $1,061 a year in heating and cooling — a payback around 2.7 years. Topping up the attic pays for itself fast here.
Heating vs. cooling in Bladen County
Split it out and it's roughly $763 a year on the heating side, $297 on cooling. By estimated insulation savings, Bladen County lands in the 21th percentile nationally. Zone 3 alone covers 690 counties in this dataset, and Bladen County comes in 331st by savings. North Carolina averages $1,169/year across the counties tracked here; Bladen County comes in 9% lower.
Where these numbers come from
The heating and cooling degree days behind this estimate — 2,877 HDD and 1,865 CDD (base 65°F, 1991-2020 normals) — come from ELIZABETHTOWN, NC US, the nearest NOAA station with published normals, 4.8 miles from Bladen County's center. Combined heating and cooling load puts Bladen County in the 18th percentile of this 3,162-county dataset. One local detail the R-value alone won't tell you: Bladen County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
Already have some insulation?
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 $143/year saved (~11.3-year payback). Call this borderline rather than a clear win.
Next steps for a Bladen County attic
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 Bladen County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Where these figures come from
Bladen 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.