Montour County, PA Insulation Payback
Montour County, PA: what topping up your attic actually costs
Montour County, Pennsylvania is zone 5 under DOE's climate map (Cold), which means winters that dominate the energy bill, with cooling a minor factor. 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 $1,718 a year — payback in roughly 2 years. That's about as fast as attic paybacks get.
Where the savings come from
The estimated savings split roughly $1,605/year heating, $113/year cooling. Out of every 100 US counties tracked here, Montour County's savings potential beats roughly 67 of them. Within zone 5 specifically, it ranks 452nd of 745 counties by estimated savings. Pennsylvania averages $1,724/year across the counties tracked here; Montour County comes in 0% higher.
Montour County's actual weather, not a national average
The heating and cooling degree days behind this estimate — 6,004 HDD and 703 CDD (base 65°F, 1991-2020 normals) — come from LEWISBURG, PA US, the nearest NOAA station with published normals, 12.5 miles from Montour County's center. That combined heating-and-cooling load ranks Montour County 1078th nationally by total degree days — the 66th percentile. Montour 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 $251/year saved (~9.1-year payback). This one is a genuine toss-up, not a clear yes.
Getting it done in Montour 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 Montour 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.