Monroe County, IA Insulation Payback
Is attic insulation worth it in Monroe County, IA?
DOE classifies Monroe County as climate zone 5, cold — cold enough that heating, not cooling, is what decides the bill. 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 $1,839 a year — payback in roughly 1.9 years. Few home upgrades pay back that quickly.
Where the savings come from
Heating accounts for about $1,694/year of that and cooling about $144/year — Monroe County needs both. Nationally, Monroe County ranks in the 75th percentile for insulation savings potential. Compared only against its own climate zone, Monroe County places 224th out of 745. Against Iowa's own average of $1,985/year, Monroe County runs 7% below that.
Where these numbers come from
The heating and cooling degree days behind this estimate — 6,336 HDD and 899 CDD (base 65°F, 1991-2020 normals) — come from ALBIA 3 NNE, IA US, the nearest NOAA station with published normals, 5 miles from Monroe County's center. By total degree days, Monroe County sits at the 76th 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
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $268/year saved — roughly 8.5 years to break even. Whether that is worth it depends on how long you plan to stay.
Next steps for a Monroe County attic
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $3,480 as a starting estimate for a Monroe County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Monroe County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Monroe 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.