Ransom County, ND Insulation Payback
Attic insulation payback for Ransom County, ND
Ransom County sits in IECC climate zone 6 (Cold) — a real winter that drives most of the annual energy bill here. For a currently uninsulated attic, DOE and ENERGY STAR recommend building up to 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 $2,484 a year in heating and cooling — a payback around 1.4 years. Hard to find a home improvement with a faster payback than this.
Heating vs. cooling in Ransom County
Of that, about $2,410/year comes from reduced heating and $74/year from reduced cooling load through the ceiling. Ransom County beats 97% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 459 counties DOE places in zone 6, Ransom County ranks 16th. Against North Dakota's own average of $2,496/year, Ransom County runs 0% above that.
The climate data behind this
NOAA's LISBON, ND US station, 2.2 miles from Ransom County, supplies the 9,014 HDD and 462 CDD this estimate runs on. That combined heating-and-cooling load ranks Ransom County 86th nationally by total degree days — the 97th percentile. DOE also classifies Ransom 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-49 runs about $2,280 for about $362/year saved — roughly 6.3 years to break even. Topping up the attic pays for itself here.
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 Ransom 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.