Greene County, NY Insulation Payback
Greene County attic insulation, by the numbers
Greene County, New York 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. 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 $2,155 a year — payback in roughly 1.6 years. Topping up the attic pays for itself fast here.
Heating vs. cooling in Greene County
Split it out and it's roughly $2,128 a year on the heating side, $28 on cooling. By estimated insulation savings, Greene County lands in the 88th percentile nationally. Zone 5 alone covers 745 counties in this dataset, and Greene County comes in 7th by savings. New York averages $1,948/year across the counties tracked here; Greene County comes in 11% higher.
The climate data behind this
The heating and cooling degree days behind this estimate — 7,957 HDD and 172 CDD (base 65°F, 1991-2020 normals) — come from E JEWETT, NY US, the nearest NOAA station with published normals, 3.6 miles from Greene County's center. That combined heating-and-cooling load ranks Greene County 398th nationally by total degree days — the 87th percentile. One local detail the R-value alone won't tell you: Greene County sits in moisture regime A (humid), which can affect the vapor-barrier choice.
If the attic isn't bare
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $314/year saved — roughly 7.3 years to break even. Worth doing on the numbers alone.
Next steps for a Greene 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 Greene County's estimated $2,155/year on the line.
Where these figures come from
Greene 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.