McDowell County, WV Insulation Payback
Attic insulation payback for McDowell County, WV
DOE classifies McDowell County as climate zone 4, mixed-humid — real heating and real cooling seasons both, roughly balanced across the year. Its recommended attic R-value for bare joists is 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 $1,446 a year in heating and cooling — a payback around 2.4 years. Hard to find a home improvement with a faster payback than this.
Heating vs. cooling in McDowell County
Of that, about $1,346/year comes from reduced heating and $100/year from reduced cooling load through the ceiling. McDowell County beats 49% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 825 counties DOE places in zone 4, McDowell County ranks 283rd. Against West Virginia's own average of $1,526/year, McDowell County runs 5% below that.
McDowell County's actual weather, not a national average
NOAA's ELKHORN, WV US station, 13.9 miles from McDowell County, supplies the 5,034 HDD and 625 CDD this estimate runs on. That combined heating-and-cooling load ranks McDowell County 1781st nationally by total degree days — the 44th percentile. DOE also classifies McDowell County as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
Already have some insulation?
If McDowell County's attic already has 3-4 inches of old insulation (about R-11) rather than bare joists, the recommended target drops to R-49. That smaller top-up costs around $2,280 and saves an estimated $211/year — payback about 10.8 years. It is close - the payback only just fits a reasonable timeframe.
Next steps for a McDowell County attic
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $3,480 figure above as a planning number for McDowell County, not a bid - contractors typically charge a $600 minimum regardless of job size.
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.