Union County, OH Insulation Payback
Is attic insulation worth it in Union County, OH?
Union County, Ohio is zone 5 under DOE's climate map (Cold), which means cold enough that heating, not cooling, is what decides the bill. An uninsulated attic there should be built up to 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 $1,638 a year in heating and cooling — a payback around 2.1 years. Few home upgrades pay back that quickly.
The breakdown behind the number
Heating accounts for about $1,483/year of that and cooling about $155/year — Union County needs both. Nationally, Union County ranks in the 62th percentile for insulation savings potential. Compared only against its own climate zone, Union County places 593rd out of 745. Against Ohio's own average of $1,669/year, Union County runs 2% below that.
Where these numbers come from
Union County's climate figures — 5,546 heating and 968 cooling degree days a year — are read from MARYSVILLE, OH US, 8.8 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Union County sits at the 62th percentile nationally. Its moisture regime is classified humid, which matters for whether the attic needs a vapor retarder as part of the job — worth asking a contractor about locally.
If the attic isn't bare
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 $239/year saved (~9.5-year payback). Whether that is worth it depends on how long you plan to stay.
Getting it done in Union County
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 Union County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Union County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Union County's numbers, and where the cost assumptions come from. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.