Garfield County, OK Insulation Payback
Attic insulation payback for Garfield County, OK
Garfield County sits in IECC climate zone 3 (Mixed-Humid) — heating load in winter and cooling load in summer, both worth taking seriously here. For a currently uninsulated attic, DOE and ENERGY STAR recommend building up to R-49. Going from R-2 to the recommended R-49 costs roughly $2,820 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 2 years at an estimated $1,377/year saved. Hard to find a home improvement with a faster payback than this.
Where the savings come from
Of that, about $1,055/year comes from reduced heating and $322/year from reduced cooling load through the ceiling. Garfield County beats 44% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 690 counties DOE places in zone 3, Garfield County ranks 10th. Against Oklahoma's own average of $1,260/year, Garfield County runs 9% above that.
Where these numbers come from
The heating and cooling degree days behind this estimate — 3,976 HDD and 2,022 CDD (base 65°F, 1991-2020 normals) — come from ENID, OK US, the nearest NOAA station with published normals, 5.6 miles from Garfield County's center. Combined heating and cooling load puts Garfield County in the 52th percentile of this 3,162-county dataset. DOE also classifies Garfield County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
Already have some insulation?
A shallower starting point changes the math: with R-11 already down, only the gap to R-38 needs filling, at roughly $1,620 for an estimated $185/year saved (~8.7-year payback). It is close - the payback only just fits a reasonable timeframe.
Next steps for a Garfield County attic
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $2,820 as a starting estimate for a Garfield 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.