Montgomery County, OH Insulation Payback
Attic insulation payback for Montgomery County, OH
Montgomery County sits in IECC climate zone 5 (Cold) — winters that dominate the energy bill, with cooling a minor factor. For a currently uninsulated attic, DOE and ENERGY STAR recommend building 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 2.1 years at an estimated $1,644/year saved. Hard to find a home improvement with a faster payback than this.
Where the savings come from
Of that, about $1,452/year comes from reduced heating and $191/year from reduced cooling load through the ceiling. Montgomery County beats 62% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 745 counties DOE places in zone 5, Montgomery County ranks 584th. Against Ohio's own average of $1,669/year, Montgomery County runs 1% below that.
Montgomery County's actual weather, not a national average
NOAA's DAYTON MCD, OH US station, 5.3 miles from Montgomery County, supplies the 5,432 HDD and 1,191 CDD this estimate runs on. Combined heating and cooling load puts Montgomery County in the 64th percentile of this 3,162-county dataset. DOE also classifies Montgomery County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
Already have some insulation?
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $240/year saved — roughly 9.5 years to break even. It is close - the payback only just fits a reasonable timeframe.
Quotes and materials for this job
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 Montgomery County job, not a quote. Expect at least a $600 minimum charge from most contractors.
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.