Floyd County, TX Insulation Payback
Attic insulation payback for Floyd County, TX
Floyd County sits in IECC climate zone 4 (Mixed-Dry) — dry heat in summer giving way to a properly cold winter. For a currently uninsulated attic, DOE and ENERGY STAR recommend building 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 $1,263 a year — payback in roughly 2.8 years. Hard to find a home improvement with a faster payback than this.
The breakdown behind the number
Of that, about $989/year comes from reduced heating and $274/year from reduced cooling load through the ceiling. Floyd County beats 36% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 825 counties DOE places in zone 4, Floyd County ranks 657th. Against Texas's own average of $1,035/year, Floyd County runs 22% above that.
Where these numbers come from
The heating and cooling degree days behind this estimate — 3,698 HDD and 1,706 CDD (base 65°F, 1991-2020 normals) — come from FLOYDADA, TX US, the nearest NOAA station with published normals, 6.4 miles from Floyd County's center. By total degree days, Floyd County sits at the 37th percentile nationally. DOE also classifies Floyd County as moisture regime B (dry) - ask a local contractor whether that changes the vapor-barrier approach for this job.
If the attic isn't bare
If Floyd County's attic already has 3-4 inches of old insulation (about R-11) rather than bare joists, the recommended target drops to R-49. That smaller top-up costs around $2,280 and saves an estimated $184/year — payback about 12.4 years. It is close - the payback only just fits a reasonable timeframe.
Next steps for a Floyd County attic
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $3,480 figure above as a planning number for Floyd County, not a bid - contractors typically charge a $600 minimum regardless of job size.
More on how this was built
Nothing here is a guess: the methodology guide names the DOE climate map and NOAA station data behind every number on this page. See the DIY vs. contractor guide for whether a job this size is realistic to do yourself.