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Gutters · Delray Beach

Gutters in Delray Beach, FL

NOAA Atlas 14 puts a 10-year, 5-minute downpour at the center of Delray Beach at 11.0 inches an hour, close to the 11.3 it gives at West Palm Beach, the wettest of the ten Florida points in our rainfall table. Gutters here have to carry that burst, and every downspout has to empty at least a foot from the wall.

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Updated October 2026

Drone view of a single-story home with a brown-gray shingle roof and box vents under large oak trees, a metal carport roof in the corner and a street behind.

Local know-how

11 inches an hour on a Delray Beach roof edge

Rarer storms push the Atlas 14 numbers higher: 13 inches an hour for the 25-year, 5-minute burst and 16 for the 100-year, and a 10-year day drops 8.72 inches. In a normal year, West Palm Beach International Airport gets 61.75 inches on 86.1 days of a tenth of an inch or more.

The median Delray Beach home dates to 1983, three years older than the county's, so many gutters hang on old fascia; check the board before a new run goes up on it.

Code and hardware

Downspouts, fasteners and hangers for Delray Beach gutters

Under R318.5, a house whose eaves overhang less than 6 inches must have gutters and downspouts, with gable-end rakes and roofs above other roofs excepted. The same section, which sits among the code's termite-protection rules, sends every downspout's water at least 1 foot out from the wall by underground pipe, tail extension or splash block.

R903.4.2 asks for metal or an approved plastic rated for outdoor use, joints that are lapped, soldered or caulked, and fasteners that resist corrosion and match the gutter metal. Hardware choice weighs more near the coast, where FEMA says metal corrosion is worst, within 3,000 feet of the ocean. For hangers, one hidden-hanger maker gives 24 inches on center as its standard spacing and 16 inches, with clips, for coastal and storm-prone areas.

Close three-quarter view of a new white seamless K-style aluminum gutter along the eave of a single-story stucco ranch home with a dark shingle roof, live oaks and cumulus sky behind (illustration)Illustration

Illustration: a seamless K-style gutter along an eave.

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Rain on your roof

How much water a Delray Beach roof sheds

Rain on your roof

Preset: 8.72 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Delray Beach).

10,865 gallons run off that roof, all of it toward the gutters and downspouts.

Math: square feet × inches × 0.623 gallons.

Questions

Gutters in Delray Beach: questions

How many downspouts does a Delray Beach house need?

Enough that each one carries the roof area above it in an 11-inch-an-hour burst. The plumbing code's leader table rates a 3-inch round downspout at 92 gallons a minute and a 4-inch round at 192 (Table 1106.3). At Delray Beach's Atlas 14 rate of 11.0 inches an hour, that works out to roughly 800 and 1,680 square feet of roof plan area per downspout, by our arithmetic with the 96.15-square-foot conversion, before any pitch factor.

Source: 2023 FBC-Plumbing Ch. 11 (UpCodes, unofficial transcription); NOAA Atlas 14, read October 5, 2026.

Related: Gutters

Are gutter guards worth it in Delray Beach rain?

They cut debris, but they do not change how much water a gutter can carry. In Consumer Reports testing, fine-mesh screens outperformed screens with larger holes, yet even the top-scoring screen was only middling at containing a severe downpour. Delray Beach's 10-year, 5-minute burst is 11.0 inches an hour by NOAA Atlas 14, so the gutter and downspout size still has to fit that rate. Guards may still need brushing in high-pollen areas, and on one of the 11.7% of Delray Beach homes held for seasonal use, someone has to be there to do it.

Source: Consumer Reports, September 2010 issue; NOAA Atlas 14, read October 5, 2026.

Related: Gutters

Nearby

Gutters near Delray Beach

Sources for this page(50)
  1. 1.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service). Read Oct 5, 2026.
  2. 2.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
  3. 3.Seasonal, recreational or occasional-use homes (share of all units): 11.7%. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25004, via Census Reporter API. Read Oct 5, 2026.
  4. 4.Median year homes were built: 1983. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
  5. 5.NOAA Atlas 14 (HDSC Precipitation Frequency Data Server). Read Oct 5, 2026.
  6. 6.NOAA National Centers for Environmental Information. Read Oct 5, 2026.
  7. 7.2023 Florida Building Code, Plumbing, 8th ed., Chapter 11 (UpCodes viewer, unofficial transcription). Read Oct 5, 2026. FBC text read from UpCodes (unofficial transcription): check floridabuilding.org or the ICC viewer before quoting (spec 8.7). Source URL inherited from COM-20 (the research cites it "as COM-20").
  8. 8.bergerbp.com. Read Oct 5, 2026.
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  10. 10.2023 Florida Building Code, Residential, 8th ed., Chapter 8 (UpCodes viewer, unofficial transcription). Read Oct 5, 2026. FBC text read from UpCodes (unofficial transcription): check floridabuilding.org or the ICC viewer before quoting (spec 8.7). Source URL inherited from NC-2 (the research cites it "as NC-2").
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  19. 19.NOAA Atlas 14, Volume 9, version 2, partial-duration depth estimates at the Delray Beach 2020 Census internal point, NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026. 24-hour depth: 10-yr 8.72 in; 100-yr 15.5 in
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  25. 25.6K hidden hanger: 24 in on center standard; 16 in with clip for coastal and storm-prone areas, Hanger manufacturer. Read Oct 5, 2026.
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  39. 39.NOAA National Hurricane Center, Tropical Cyclone Climatology, NOAA National Hurricane Center. Read Oct 5, 2026.
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  42. 42.Senate staff analysis, SB 808 (2026), pp. 3-4 (history of the statewide code), The Florida Senate. Read Oct 5, 2026.
  43. 43.2023 Florida Building Code, Residential, 8th ed., Ch. 9 Roof Assemblies (R903.2.1, R905.1.1.1, R908.1.1, R908.3, R908.5, R908.7), International Code Council (Florida Building Commission). Read Oct 5, 2026.
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  49. 49.NRCA roofing guidelines and consumer resources (roof life about 20 years; fall and spring checks), National Roofing Contractors Association. Read Oct 5, 2026.
  50. 50.NOAA Atlas 14 at Delray Beach: 11 in/hr (5-minute, 10-year). NOAA Atlas 14 Precipitation Frequency Data Server. Read Oct 5, 2026.

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Gutters in Delray Beach

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