Bennington County, VT Insulation Payback
Is attic insulation worth it in Bennington County, VT?
DOE classifies Bennington County as climate zone 6, cold — cold enough that heating, not cooling, is what decides the bill. Its recommended attic R-value for bare joists is R-60. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-60 runs an estimated $3,480, and saves about $2,017 a year in heating and cooling — a payback around 1.7 years. Few home upgrades pay back that quickly.
Heating vs. cooling in Bennington County
Heating accounts for about $1,966/year of that and cooling about $52/year — Bennington County needs both. Nationally, Bennington County ranks in the 83th percentile for insulation savings potential. Compared only against its own climate zone, Bennington County places 380th out of 459. Against Vermont's own average of $2,179/year, Bennington County runs 7% below that.
The climate data behind this
Bennington County's climate figures — 7,351 heating and 321 cooling degree days a year — are read from SUNDERLAND 2, VT US, 3.9 miles away, NOAA's nearest 1991-2020 normals station. Combined heating and cooling load puts Bennington County in the 82th percentile of this 3,162-county dataset. 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.
Already have some insulation?
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 $294/year saved (~7.7-year payback). The math clears comfortably within a normal ownership horizon.
Quotes and materials for this job
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 Bennington County, not a bid - contractors typically charge a $600 minimum regardless of job size.
Bennington County's numbers, sourced
The methodology guide lists exactly which DOE and NOAA sources feed Bennington 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.