Greenup County, KY Insulation Payback
Attic insulation payback for Greenup County, KY
Greenup County sits in IECC climate zone 4 (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-60. For an attic around 1,000 square feet, closing the gap from R-2 to R-60 costs around $3,480 and saves an estimated $1,429 a year — payback in roughly 2.4 years. Hard to find a home improvement with a faster payback than this.
Heating vs. cooling in Greenup County
Of that, about $1,274/year comes from reduced heating and $155/year from reduced cooling load through the ceiling. Greenup County beats 48% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 825 counties DOE places in zone 4, Greenup County ranks 321st. Against Kentucky's own average of $1,385/year, Greenup County runs 3% above that.
Where these numbers come from
Greenup County's climate figures — 4,763 heating and 966 cooling degree days a year — are read from WARNOCK 2, KY US, 6.6 miles away, NOAA's nearest 1991-2020 normals station. Combined heating and cooling load puts Greenup County in the 45th percentile of this 3,162-county dataset. DOE also classifies Greenup County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
The smaller top-up scenario
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 $208/year saved (~10.9-year payback). 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 Greenup 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.