Portage County, OH Insulation Payback
Portage County attic insulation, by the numbers
Portage County, Ohio is zone 5 under DOE's climate map (Cold), which means a real winter that drives most of the annual energy bill here. An uninsulated attic there should be built up to 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 1.9 years at an estimated $1,814/year saved. Topping up the attic pays for itself fast here.
Heating vs. cooling in Portage County
Split it out and it's roughly $1,711 a year on the heating side, $104 on cooling. By estimated insulation savings, Portage County lands in the 73th percentile nationally. Zone 5 alone covers 745 counties in this dataset, and Portage County comes in 269th by savings. Ohio averages $1,669/year across the counties tracked here; Portage County comes in 9% higher.
The climate data behind this
NOAA's RAVENNA 2 S, OH US station, 5.1 miles from Portage County, supplies the 6,398 HDD and 645 CDD this estimate runs on. By total degree days, Portage County sits at the 72th percentile nationally. One local detail the R-value alone won't tell you: Portage County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
If the attic isn't bare
If Portage 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 $265/year — payback about 8.6 years. Call this borderline rather than a clear win.
Getting it done in Portage County
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 Portage County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Where these figures come from
Portage 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.