Edwards County, TX Insulation Payback
Is attic insulation worth it in Edwards County, TX?
Edwards County, Texas is zone 2 under DOE's climate map (Hot-Humid), which means long, muggy summers and mild winters, where cooling dominates the energy bill. An uninsulated attic there should be built up to R-49. Going from R-2 to the recommended R-49 costs roughly $2,820 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 3.2 years at an estimated $894/year saved. That is a solid payback as home upgrades go.
The breakdown behind the number
Heating accounts for about $556/year of that and cooling about $338/year — Edwards County needs both. Nationally, Edwards County ranks in the 10th percentile for insulation savings potential. Compared only against its own climate zone, Edwards County places 49th out of 233. Against Texas's own average of $1,035/year, Edwards County runs 14% below that.
Edwards County's actual weather, not a national average
The heating and cooling degree days behind this estimate — 2,097 HDD and 2,118 CDD (base 65°F, 1991-2020 normals) — come from ROCKSPRINGS, TX US, the nearest NOAA station with published normals, 6.3 miles from Edwards County's center. Combined heating and cooling load puts Edwards County in the 5th percentile of this 3,162-county dataset. Its moisture regime is classified dry, which matters for whether the attic needs a vapor retarder as part of the job — worth asking a contractor about locally.
If the attic isn't bare
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 $120/year saved (~13.5-year payback). Whether that is worth it depends on how long you plan to stay.
Getting it done in Edwards County
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $2,820 figure above as a planning number for Edwards County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Edwards County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Edwards County's numbers, and where the cost assumptions come from. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.