Amite County, MS Insulation Payback
Attic insulation payback for Amite County, MS
Amite County sits in IECC climate zone 3 (Hot-Humid) — humid heat for much of the year, with cooling running far more than heating ever does. For a currently uninsulated attic, DOE and ENERGY STAR recommend building up to R-49. For an attic around 1,000 square feet, closing the gap from R-2 to R-49 costs around $2,820 and saves an estimated $912 a year — payback in roughly 3.1 years. Worth doing on the numbers alone.
Where the savings come from
Of that, about $559/year comes from reduced heating and $353/year from reduced cooling load through the ceiling. Amite County beats 10% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 690 counties DOE places in zone 3, Amite County ranks 632nd. Against Mississippi's own average of $1,022/year, Amite County runs 11% below that.
Where these numbers come from
The heating and cooling degree days behind this estimate — 2,108 HDD and 2,216 CDD (base 65°F, 1991-2020 normals) — come from LIBERTY, MS US, the nearest NOAA station with published normals, 2.9 miles from Amite County's center. By total degree days, Amite County sits at the 7th percentile nationally. DOE also classifies Amite 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
Already have a few inches up there? Topping R-11 up to R-38 runs about $1,620 for about $123/year saved — roughly 13.2 years to break even. It is close - the payback only just fits a reasonable timeframe.
Getting it done in Amite County
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 Amite 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.