Wyandot County, OH Insulation Payback
Wyandot County attic insulation, by the numbers
DOE classifies Wyandot County as climate zone 5, cold — winters that dominate the energy bill, with cooling a minor factor. Its recommended attic R-value for bare joists is R-60. Going from R-2 to the recommended R-60 costs roughly $3,480 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 2 years at an estimated $1,772/year saved. Topping up the attic pays for itself fast here.
The breakdown behind the number
Split it out and it's roughly $1,647 a year on the heating side, $125 on cooling. By estimated insulation savings, Wyandot County lands in the 70th percentile nationally. Zone 5 alone covers 745 counties in this dataset, and Wyandot County comes in 356th by savings. Ohio averages $1,669/year across the counties tracked here; Wyandot County comes in 6% higher.
Wyandot County's actual weather, not a national average
The heating and cooling degree days behind this estimate — 6,160 HDD and 779 CDD (base 65°F, 1991-2020 normals) — come from UPPER SANDUSKY, OH US, the nearest NOAA station with published normals, 1.7 miles from Wyandot County's center. That combined heating-and-cooling load ranks Wyandot County 947th nationally by total degree days — the 70th percentile. One local detail the R-value alone won't tell you: Wyandot County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
Already have some insulation?
If Wyandot County's attic already has 3-4 inches of old insulation (about R-11) rather than bare joists, the recommended target drops to R-49. That smaller top-up costs around $2,280 and saves an estimated $258/year — payback about 8.8 years. Call this borderline rather than a clear win.
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 Wyandot County's estimated $1,772/year on the line.
Where these figures come from
Wyandot 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.