Montrose County, CO Insulation Payback
Montrose County attic insulation, by the numbers
DOE classifies Montrose County as climate zone 5, cold — a real winter that drives most of the annual energy bill here. 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 $1,878 a year — payback in roughly 1.9 years. Topping up the attic pays for itself fast here.
Where the savings come from
Split it out and it's roughly $1,835 a year on the heating side, $43 on cooling. By estimated insulation savings, Montrose County lands in the 77th percentile nationally. Zone 5 alone covers 745 counties in this dataset, and Montrose County comes in 167th by savings. Colorado averages $2,043/year across the counties tracked here; Montrose County comes in 8% lower.
Where these numbers come from
The heating and cooling degree days behind this estimate — 6,862 HDD and 268 CDD (base 65°F, 1991-2020 normals) — come from NORWOOD, CO US, the nearest NOAA station with published normals, 19.1 miles from Montrose County's center. That combined heating-and-cooling load ranks Montrose County 821st nationally by total degree days — the 74th percentile. One local detail the R-value alone won't tell you: Montrose County sits in moisture regime B (dry), which can affect the vapor-barrier choice.
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 $274/year saved (~8.3-year payback). Call this borderline rather than a clear win.
Next steps for a Montrose 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 Montrose County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Where these figures come from
Montrose County's R-60 target and its degree-day figures both come from named federal sources - see the methodology guide for exactly which ones. The guide to what R-value actually means explains why R-60 is the target here specifically.