Indiana County, PA Insulation Payback
Indiana County attic insulation, by the numbers
Indiana County, Pennsylvania is zone 5 under DOE's climate map (Cold), which means cold enough that heating, not cooling, is what decides the bill. 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 $1,728 a year — payback in roughly 2 years. Topping up the attic pays for itself fast here.
Where the savings come from
Split it out and it's roughly $1,644 a year on the heating side, $85 on cooling. By estimated insulation savings, Indiana County lands in the 68th percentile nationally. Zone 5 alone covers 745 counties in this dataset, and Indiana County comes in 426th by savings. Pennsylvania averages $1,724/year across the counties tracked here; Indiana County comes in 0% higher.
Where these numbers come from
The heating and cooling degree days behind this estimate — 6,147 HDD and 528 CDD (base 65°F, 1991-2020 normals) — come from INDIANA 3 SE, PA US, the nearest NOAA station with published normals, 4.1 miles from Indiana County's center. That combined heating-and-cooling load ranks Indiana County 1099th nationally by total degree days — the 65th percentile. One local detail the R-value alone won't tell you: Indiana County sits in moisture regime A (humid), 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 $252/year saved (~9-year payback). Call this borderline rather than a clear win.
Getting it done in Indiana County
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 Indiana County job, not a quote. Expect at least a $600 minimum charge from most contractors.
Where these figures come from
Indiana 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.