Morton County, ND Insulation Payback
Morton County, ND: what topping up your attic actually costs
Morton 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. 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 $2,334 a year — payback in roughly 1.5 years. That's about as fast as attic paybacks get.
Where the savings come from
The estimated savings split roughly $2,256/year heating, $78/year cooling. Out of every 100 US counties tracked here, Morton County's savings potential beats roughly 94 of them. Within zone 6 specifically, it ranks 76th of 459 counties by estimated savings. North Dakota averages $2,496/year across the counties tracked here; Morton County comes in 6% lower.
Where these numbers come from
Morton County's climate figures — 8,439 heating and 484 cooling degree days a year — are read from ALMONT, ND US, 9.3 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Morton County sits at the 94th percentile nationally. Morton County falls in DOE's moisture regime A (humid), a detail that affects vapor-barrier recommendations more than the R-value target itself.
If the attic isn't bare
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 $340/year saved (~6.7-year payback). That is a solid payback as home upgrades go.
Next steps for a Morton County attic
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 Morton County's estimated $2,334/year on the line.
Nothing here is a guess
Every figure on this page traces to DOE/IECC climate zones and NOAA degree-day normals, documented in the methodology guide. The guide to what R-value actually means explains why R-60 is the target here specifically.