Morgan County, MO Insulation Payback
Attic insulation payback for Morgan County, MO
DOE classifies Morgan County as climate zone 4, mixed-humid — a genuine mix of cold winters and humid summers, with neither one dominating the bill. Its recommended attic R-value for bare joists is 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 $1,476 a year — payback in roughly 2.4 years. Hard to find a home improvement with a faster payback than this.
Where the savings come from
Of that, about $1,254/year comes from reduced heating and $221/year from reduced cooling load through the ceiling. Morgan County beats 51% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 825 counties DOE places in zone 4, Morgan County ranks 220th. Against Missouri's own average of $1,534/year, Morgan County runs 4% below that.
Morgan County's actual weather, not a national average
NOAA's VERSAILLES, MO US station, 2.1 miles from Morgan County, supplies the 4,690 HDD and 1,379 CDD this estimate runs on. That combined heating-and-cooling load ranks Morgan County 1483rd nationally by total degree days — the 53th percentile. DOE also classifies Morgan 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 $215/year saved (~10.6-year payback). It is close - the payback only just fits a reasonable timeframe.
Getting it done in Morgan County
Get more than one quote before committing. Attic access and any needed air sealing move the price around, and most contractors won't take a job below roughly $600 regardless of size - worth asking upfront given Morgan County's estimated $1,476/year on the line.
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.