Adams County, CO Insulation Payback
Attic insulation payback for Adams County, CO
Adams County sits in IECC climate zone 5 (Cold) — winters that dominate the energy bill, with cooling a minor factor. 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 $1,827 a year — payback in roughly 1.9 years. Hard to find a home improvement with a faster payback than this.
The breakdown behind the number
Of that, about $1,718/year comes from reduced heating and $108/year from reduced cooling load through the ceiling. Adams County beats 74% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 745 counties DOE places in zone 5, Adams County ranks 251st. Against Colorado's own average of $2,043/year, Adams County runs 11% below that.
Adams County's actual weather, not a national average
Adams County's climate figures — 6,427 heating and 674 cooling degree days a year — are read from BYERS 5 ENE, CO US, 14.2 miles away, NOAA's nearest 1991-2020 normals station. By total degree days, Adams County sits at the 73th percentile nationally. DOE also classifies Adams 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
Already have a few inches up there? Topping R-11 up to R-49 runs about $2,280 for about $266/year saved — roughly 8.6 years to break even. It is close - the payback only just fits a reasonable timeframe.
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 Adams County's estimated $1,827/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.