Jackson County, KS Insulation Payback
Jackson County, KS: what topping up your attic actually costs
DOE classifies Jackson County as climate zone 4, mixed-humid — real heating and real cooling seasons both, roughly balanced across the year. Its recommended attic R-value for bare joists is R-60. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-60 runs an estimated $3,480, and saves about $1,698 a year in heating and cooling — a payback around 2 years. That's about as fast as attic paybacks get.
The breakdown behind the number
The estimated savings split roughly $1,514/year heating, $184/year cooling. Out of every 100 US counties tracked here, Jackson County's savings potential beats roughly 66 of them. Within zone 4 specifically, it ranks 4th of 825 counties by estimated savings. Kansas averages $1,594/year across the counties tracked here; Jackson County comes in 7% higher.
The climate data behind this
The heating and cooling degree days behind this estimate — 5,661 HDD and 1,146 CDD (base 65°F, 1991-2020 normals) — come from HOLTON, KS US, the nearest NOAA station with published normals, 3.9 miles from Jackson County's center. That combined heating-and-cooling load ranks Jackson County 1024th nationally by total degree days — the 68th percentile. Jackson County falls in DOE's moisture regime A (humid), a detail that affects vapor-barrier recommendations more than the R-value target itself.
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 $248/year saved — roughly 9.2 years to break even. This one is a genuine toss-up, not a clear yes.
Next steps for a Jackson 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 Jackson County's estimated $1,698/year on the line.
Nothing here is a guess
Every figure on this page traces to DOE/IECC climate zones and NOAA degree-day normals, documented in the methodology guide. The guide to what R-value actually means explains why R-60 is the target here specifically.