Alcona County, MI Insulation Payback
Attic insulation payback for Alcona County, MI
DOE classifies Alcona County as climate zone 6, cold — winters that dominate the energy bill, with cooling a minor factor. 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 $2,232 a year — payback in roughly 1.6 years. Hard to find a home improvement with a faster payback than this.
The breakdown behind the number
Of that, about $2,201/year comes from reduced heating and $31/year from reduced cooling load through the ceiling. Alcona County beats 91% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 459 counties DOE places in zone 6, Alcona County ranks 158th. Against Michigan's own average of $2,064/year, Alcona County runs 8% above that.
The climate data behind this
The heating and cooling degree days behind this estimate — 8,233 HDD and 192 CDD (base 65°F, 1991-2020 normals) — come from HARRISVILLE 2NNE, MI US, the nearest NOAA station with published normals, 1.8 miles from Alcona County's center. By total degree days, Alcona County sits at the 90th percentile nationally. DOE also classifies Alcona County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
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 $326/year saved — roughly 7 years to break even. Topping up the attic pays for itself here.
Quotes and materials for this job
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 Alcona County's estimated $2,232/year on the line.
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.