Fisher County, TX Insulation Payback
Fisher County, TX: what topping up your attic actually costs
Fisher County, Texas is zone 3 under DOE's climate map (Hot-Dry), which means scorching, dry summers where heat radiating straight through the roof does most of the damage. An uninsulated attic there should be built up to R-49. For an attic around 1,000 square feet, closing the gap from R-2 to R-49 costs around $2,820 and saves an estimated $1,083 a year — payback in roughly 2.6 years. That's about as fast as attic paybacks get.
The breakdown behind the number
The estimated savings split roughly $653/year heating, $430/year cooling. Out of every 100 US counties tracked here, Fisher County's savings potential beats roughly 23 of them. Within zone 3 specifically, it ranks 281st of 690 counties by estimated savings. Texas averages $1,035/year across the counties tracked here; Fisher County comes in 5% higher.
Where these numbers come from
NOAA's ROTAN, TX US station, 8.6 miles from Fisher County, supplies the 2,461 HDD and 2,696 CDD this estimate runs on. That combined heating-and-cooling load ranks Fisher County 2214th nationally by total degree days — the 30th percentile. Fisher County falls in DOE's moisture regime B (dry), 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-38 needs filling, at roughly $1,620 for an estimated $146/year saved (~11.1-year payback). This one is a genuine toss-up, not a clear yes.
Next steps for a Fisher County attic
Real bids depend on how easy the attic is to reach and whether old insulation needs removing first, so treat $2,820 as a starting estimate for a Fisher 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-49 is the target here specifically.