Yauco Municipio, PR Insulation Payback
Attic insulation payback for Yauco Municipio, PR
Yauco Municipio, Puerto Rico is zone 1 under DOE's climate map (Hot-Humid), which means long, muggy summers and mild winters, where cooling dominates the energy bill. An uninsulated attic there should be built up to R-30. Topping up a typical 1,000-square-foot attic from bare joists (R-2) to R-30 runs an estimated $1,680, and saves about $371 a year in heating and cooling — a payback around 4.5 years. Worth doing on the numbers alone.
The breakdown behind the number
Of that, about $4/year comes from reduced heating and $367/year from reduced cooling load through the ceiling. Yauco Municipio beats 0% of the counties in this 3,162-county dataset on estimated insulation savings. Among the 81 counties DOE places in zone 1, Yauco Municipio ranks 73rd. Against Puerto Rico's own average of $660/year, Yauco Municipio runs 44% below that.
The climate data behind this
NOAA's ADJUNTAS SUBSTN, PR RQ station, 7.3 miles from Yauco Municipio, supplies the 16 HDD and 2,368 CDD this estimate runs on. By total degree days, Yauco Municipio sits at the 0th percentile nationally. DOE also classifies Yauco Municipio as moisture regime A (humid) - ask a local contractor whether that changes the vapor-barrier approach for this job.
The smaller top-up scenario
Already have a few inches up there? Topping R-11 up to R-25 runs about $840 for about $41/year saved — roughly 20.7 years to break even. The payback here is longer than the analysis horizon.
Getting it done in Yauco Municipio
Actual quotes will vary by attic access, existing debris, and whether the job needs air sealing first. Treat the $1,680 figure above as a planning number for Yauco Municipio, 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.