Hood County, TX Insulation Payback
Is attic insulation worth it in Hood County, TX?
Hood County sits in IECC climate zone 3 (Hot-Humid) — humid heat for much of the year, with cooling running far more than heating ever does. For a currently uninsulated attic, DOE and ENERGY STAR recommend building up to R-49. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-49 runs an estimated $2,820, and saves about $1,097 a year in heating and cooling — a payback around 2.6 years. Few home upgrades pay back that quickly.
Heating vs. cooling in Hood County
Heating accounts for about $689/year of that and cooling about $408/year — Hood County needs both. Nationally, Hood County ranks in the 24th percentile for insulation savings potential. Compared only against its own climate zone, Hood County places 243rd out of 690. Against Texas's own average of $1,035/year, Hood County runs 6% above that.
The climate data behind this
NOAA's GRANBURY 5N, TX US station, 6.5 miles from Hood County, supplies the 2,598 HDD and 2,559 CDD this estimate runs on. That combined heating-and-cooling load ranks Hood County 2215th nationally by total degree days — the 30th percentile. Its moisture regime is classified humid, which matters for whether the attic needs a vapor retarder as part of the job — worth asking a contractor about locally.
The smaller top-up scenario
If Hood County's attic already has 3-4 inches of old insulation (about R-11) rather than bare joists, the recommended target drops to R-38. That smaller top-up costs around $1,620 and saves an estimated $148/year — payback about 11 years. Whether that is worth it depends on how long you plan to stay.
Quotes and materials for this job
Get more than one quote before committing. Attic access and any needed air sealing move the price around, and most contractors won't take a job below roughly $600 regardless of size - worth asking upfront given Hood County's estimated $1,097/year on the line.
Hood County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Hood 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.