Madison County, NE Insulation Payback
Attic insulation payback for Madison County, NE
Madison 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 1.8 years at an estimated $1,955/year saved. Hard to find a home improvement with a faster payback than this.
The breakdown behind the number
Of that, about $1,821/year comes from reduced heating and $134/year from reduced cooling load through the ceiling. Madison County beats 80% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 745 counties DOE places in zone 5, Madison County ranks 88th. Against Nebraska's own average of $1,872/year, Madison County runs 4% above that.
Where these numbers come from
The heating and cooling degree days behind this estimate — 6,810 HDD and 836 CDD (base 65°F, 1991-2020 normals) — come from MADISON, NE US, the nearest NOAA station with published normals, 9.8 miles from Madison County's center. By total degree days, Madison County sits at the 81th percentile nationally. DOE also classifies Madison County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
If the attic isn't bare
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $285/year saved — roughly 8 years to break even. Topping up the attic pays for itself here.
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 Madison 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.