Cass County, IN Insulation Payback
Cass County, IN: what topping up your attic actually costs
Cass County, Indiana 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. Going from R-2 to the recommended R-60 costs roughly $3,480 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 2 years at an estimated $1,734/year saved. That's about as fast as attic paybacks get.
Heating vs. cooling in Cass County
The estimated savings split roughly $1,591/year heating, $143/year cooling. Out of every 100 US counties tracked here, Cass County's savings potential beats roughly 68 of them. Within zone 5 specifically, it ranks 417th of 745 counties by estimated savings. Indiana averages $1,634/year across the counties tracked here; Cass County comes in 6% higher.
The climate data behind this
Cass County's climate figures — 5,952 heating and 888 cooling degree days a year — are read from LOGANSPORT CICOTT ST, IN US, 1.8 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Cass County sits at the 68th percentile nationally. Cass 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
If Cass County's attic already has 3-4 inches of old insulation (about R-11) rather than bare joists, the recommended target drops to R-49. That smaller top-up costs around $2,280 and saves an estimated $253/year — payback about 9 years. This one is a genuine toss-up, not a clear yes.
Next steps for a Cass 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 Cass 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.