Wexford County, MI Insulation Payback
Wexford County, MI: what topping up your attic actually costs
DOE classifies Wexford County as climate zone 6, cold — cold enough that heating, not cooling, is what decides the bill. 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 $2,164 a year in heating and cooling — a payback around 1.6 years. That's about as fast as attic paybacks get.
Heating vs. cooling in Wexford County
The estimated savings split roughly $2,099/year heating, $64/year cooling. Out of every 100 US counties tracked here, Wexford County's savings potential beats roughly 89 of them. Within zone 6 specifically, it ranks 224th of 459 counties by estimated savings. Michigan averages $2,064/year across the counties tracked here; Wexford County comes in 5% higher.
Wexford County's actual weather, not a national average
NOAA's CADILLAC, MI US station, 9.7 miles from Wexford County, supplies the 7,852 HDD and 401 CDD this estimate runs on. Combined heating and cooling load puts Wexford County in the 89th percentile of this 3,162-county dataset. Wexford County falls in DOE's moisture regime A (humid), a detail that affects vapor-barrier recommendations more than the R-value target itself.
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 $316/year saved — roughly 7.2 years to break even. That is a solid payback as home upgrades go.
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 Wexford County, not a bid - contractors typically charge a $600 minimum regardless of job size.
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.