Barceloneta Municipio, PR Insulation Payback
Barceloneta Municipio attic insulation, by the numbers
Barceloneta Municipio sits in IECC climate zone 1 (Hot-Humid) — humid heat for much of the year, with cooling running far more than heating ever does. For a currently uninsulated attic, DOE and ENERGY STAR recommend building up to R-30. Going from R-2 to the recommended R-30 costs roughly $1,680 installed for a typical attic (about 1,000 sq ft), and pays for itself in about 2.5 years at an estimated $672/year saved. Topping up the attic pays for itself fast here.
Heating vs. cooling in Barceloneta Municipio
Split it out and it's roughly $0 a year on the heating side, $672 on cooling. By estimated insulation savings, Barceloneta Municipio lands in the 1th percentile nationally. Zone 1 alone covers 81 counties in this dataset, and Barceloneta Municipio comes in 54th by savings. Puerto Rico averages $660/year across the counties tracked here; Barceloneta Municipio comes in 2% higher.
Barceloneta Municipio's actual weather, not a national average
NOAA's MANATI 2 E, PR RQ station, 6.6 miles from Barceloneta Municipio, supplies the 0 HDD and 4,335 CDD this estimate runs on. By total degree days, Barceloneta Municipio sits at the 7th percentile nationally. One local detail the R-value alone won't tell you: Barceloneta Municipio sits in moisture regime A (humid), which can affect the vapor-barrier choice.
The smaller top-up scenario
If Barceloneta Municipio's attic already has 3-4 inches of old insulation (about R-11) rather than bare joists, the recommended target drops to R-25. That smaller top-up costs around $840 and saves an estimated $73/year — payback about 11.5 years. Call this borderline rather than a clear win.
Next steps for a Barceloneta Municipio attic
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 Barceloneta Municipio, not a bid - contractors typically charge a $600 minimum regardless of job size.
Where these figures come from
Barceloneta Municipio's R-30 target and its degree-day figures both come from named federal sources - see the methodology guide for exactly which ones. The guide to what R-value actually means explains why R-30 is the target here specifically.