Jackson County, WI Insulation Payback
Jackson County attic insulation, by the numbers
DOE classifies Jackson County as climate zone 6, cold — a real winter that drives most of the annual energy bill here. Its recommended attic R-value for bare joists is 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 $2,241 a year — payback in roughly 1.6 years. Topping up the attic pays for itself fast here.
Where the savings come from
Split it out and it's roughly $2,177 a year on the heating side, $64 on cooling. By estimated insulation savings, Jackson County lands in the 91th percentile nationally. Zone 6 alone covers 459 counties in this dataset, and Jackson County comes in 151st by savings. Wisconsin averages $2,200/year across the counties tracked here; Jackson County comes in 2% higher.
The climate data behind this
NOAA's NEILLSVILLE 3ESE, WI US station, 19.7 miles from Jackson County, supplies the 8,143 HDD and 396 CDD this estimate runs on. That combined heating-and-cooling load ranks Jackson County 278th nationally by total degree days — the 91th percentile. One local detail the R-value alone won't tell you: Jackson County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
The smaller top-up scenario
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $327/year saved — roughly 7 years to break even. Worth doing on the numbers alone.
Quotes and materials for this job
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $3,480 as a starting estimate for a Jackson County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Where these figures come from
Jackson 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.