Dundy County, NE Insulation Payback
Dundy County attic insulation, by the numbers
Dundy County, Nebraska is zone 5 under DOE's climate map (Cold), which means a real winter that drives most of the annual energy bill here. An uninsulated attic there should be built up to R-60. For an attic around 1,000 square feet, closing the gap from R-2 to R-60 costs around $3,480 and saves an estimated $1,720 a year — payback in roughly 2 years. Topping up the attic pays for itself fast here.
Where the savings come from
Split it out and it's roughly $1,534 a year on the heating side, $186 on cooling. By estimated insulation savings, Dundy County lands in the 67th percentile nationally. Zone 5 alone covers 745 counties in this dataset, and Dundy County comes in 446th by savings. Nebraska averages $1,872/year across the counties tracked here; Dundy County comes in 8% lower.
The climate data behind this
Dundy County's climate figures — 5,738 heating and 1,156 cooling degree days a year — are read from BENKELMAN 1N, NE US, 10.8 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Dundy County sits at the 69th percentile nationally. One local detail the R-value alone won't tell you: Dundy County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
If the attic isn't bare
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $251/year saved — roughly 9.1 years to break even. Call this borderline rather than a clear win.
Next steps for a Dundy 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 Dundy County's estimated $1,720/year on the line.
Where these figures come from
Dundy County's R-60 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-60 is the target here specifically.