La Plata County, CO Insulation Payback
Attic insulation payback for La Plata County, CO
La Plata County sits in IECC climate zone 5 (Cold) — a real winter that drives most of the annual energy bill here. 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 $1,824 a year — payback in roughly 1.9 years. Hard to find a home improvement with a faster payback than this.
Heating vs. cooling in La Plata County
Of that, about $1,780/year comes from reduced heating and $44/year from reduced cooling load through the ceiling. La Plata County beats 73% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 745 counties DOE places in zone 5, La Plata County ranks 256th. Against Colorado's own average of $2,043/year, La Plata County runs 11% below that.
Where these numbers come from
La Plata County's climate figures — 6,657 heating and 276 cooling degree days a year — are read from DURANGO, CO US, 1 miles away, NOAA's nearest 1991-2020 normals station. Combined heating and cooling load puts La Plata County in the 70th percentile of this 3,162-county dataset. DOE also classifies La Plata County as moisture regime B (dry) - ask a local contractor whether that changes the vapor-barrier approach for this job.
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 $266/year saved (~8.6-year payback). It is close - the payback only just fits a reasonable timeframe.
Getting it done in La Plata County
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 La Plata County's estimated $1,824/year on the line.
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.