Adams County, IN Insulation Payback
Adams County, IN: what topping up your attic actually costs
Adams County sits in IECC climate zone 5 (Cold) — winters that dominate the energy bill, with cooling a minor factor. 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 $1,754 a year in heating and cooling — a payback around 2 years. That's about as fast as attic paybacks get.
Heating vs. cooling in Adams County
The estimated savings split roughly $1,613/year heating, $141/year cooling. Out of every 100 US counties tracked here, Adams County's savings potential beats roughly 69 of them. Within zone 5 specifically, it ranks 379th of 745 counties by estimated savings. Indiana averages $1,634/year across the counties tracked here; Adams County comes in 7% higher.
Adams County's actual weather, not a national average
Adams County's climate figures — 6,034 heating and 877 cooling degree days a year — are read from BERNE WWTP, IN US, 5.4 miles away, NOAA's nearest 1991-2020 normals station. That combined heating-and-cooling load ranks Adams County 968th nationally by total degree days — the 69th percentile. Adams County falls in DOE's moisture regime A (humid), a detail that affects vapor-barrier recommendations more than the R-value target itself.
The smaller top-up scenario
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 $256/year saved (~8.9-year payback). This one is a genuine toss-up, not a clear yes.
Quotes and materials for this job
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 Adams County job, not a quote. Expect at least a $600 minimum charge from most contractors.
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.