Florence County, WI Insulation Payback
Attic insulation payback for Florence County, WI
DOE classifies Florence County as climate zone 7, very cold — winters long and harsh enough that heating is essentially the entire equation. 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 $2,483 a year — payback in roughly 1.4 years. Hard to find a home improvement with a faster payback than this.
Where the savings come from
Of that, about $2,446/year comes from reduced heating and $37/year from reduced cooling load through the ceiling. Florence County beats 97% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 120 counties DOE places in zone 7, Florence County ranks 73rd. Against Wisconsin's own average of $2,200/year, Florence County runs 13% above that.
The climate data behind this
NOAA's FLORENCE, WI US station, 8.3 miles from Florence County, supplies the 9,149 HDD and 231 CDD this estimate runs on. That combined heating-and-cooling load ranks Florence County 98th nationally by total degree days — the 97th percentile.
Already have some insulation?
A shallower starting point changes the math: with R-11 already down, only the gap to R-49 needs filling, at roughly $2,280 for an estimated $362/year saved (~6.3-year payback). Topping up the attic pays for itself here.
Quotes and materials for this job
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $3,480 figure above as a planning number for Florence County, not a bid - contractors typically charge a $600 minimum regardless of job size.
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.