Rush County, KS Insulation Payback
Attic insulation payback for Rush County, KS
Rush County sits in IECC climate zone 4 (Mixed-Humid) — a genuine mix of cold winters and humid summers, with neither one dominating the bill. For a currently uninsulated attic, DOE and ENERGY STAR recommend building up to R-60. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-60 runs an estimated $3,480, and saves about $1,679 a year in heating and cooling — a payback around 2.1 years. Hard to find a home improvement with a faster payback than this.
Where the savings come from
Of that, about $1,467/year comes from reduced heating and $212/year from reduced cooling load through the ceiling. Rush County beats 65% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 825 counties DOE places in zone 4, Rush County ranks 9th. Against Kansas's own average of $1,594/year, Rush County runs 5% above that.
Where these numbers come from
Rush County's climate figures — 5,486 heating and 1,319 cooling degree days a year — are read from BISON 3NW, KS US, 4.9 miles away, NOAA's nearest 1991-2020 normals station. That combined heating-and-cooling load ranks Rush County 1026th nationally by total degree days — the 68th percentile. DOE also classifies Rush 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-49 needs filling, at roughly $2,280 for an estimated $245/year saved (~9.3-year payback). It is close - the payback only just fits a reasonable timeframe.
Getting it done in Rush County
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 Rush 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.