Monongalia County, WV Insulation Payback
Is attic insulation worth it in Monongalia County, WV?
Monongalia County, West Virginia is zone 5 under DOE's climate map (Cold), which means a real winter that drives most of the annual energy bill here. An uninsulated attic there should be built 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 2.2 years at an estimated $1,574/year saved. Few home upgrades pay back that quickly.
Where the savings come from
Heating accounts for about $1,455/year of that and cooling about $119/year — Monongalia County needs both. Nationally, Monongalia County ranks in the 58th percentile for insulation savings potential. Compared only against its own climate zone, Monongalia County places 673rd out of 745. Against West Virginia's own average of $1,526/year, Monongalia County runs 3% above that.
Monongalia County's actual weather, not a national average
NOAA's MORGANTOWN L&D, WV US station, 4.8 miles from Monongalia County, supplies the 5,441 HDD and 743 CDD this estimate runs on. By total degree days, Monongalia County sits at the 56th percentile nationally. Its moisture regime is classified humid, which matters for whether the attic needs a vapor retarder as part of the job — worth asking a contractor about locally.
The smaller top-up scenario
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 $230/year saved (~9.9-year payback). Whether that is worth it depends on how long you plan to stay.
Quotes and materials for this job
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 Monongalia County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Monongalia County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Monongalia County's numbers, and where the cost assumptions come from. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.