Gutters ยท Ocean Breeze
Gutters in Ocean Breeze, FL
In Ocean Breeze, a 5-minute downpour in a 10-year storm falls at 10.4 inches an hour, and a 100-year storm reaches 15.1 inches an hour. Gutters and downspouts here have to move a lot of water in a short burst, not just a steady drizzle. Local burst rates set the sizing and discharge choices that follow.
Updated October 2026

Our workSizing for local rain
How much water gutters must move in Ocean Breeze
Sizing starts with the burst rate, not the daily total. Local design rainfall for a 10-year storm reaches 3.14 inches an hour over a full hour, and a 24-hour storm drops 7.59 inches. Florida code sizes horizontal gutters by roof flow, and a 6 inch half-round gutter at 1/8 inch per foot slope carries 110 gallons per minute.
IllustrationIllustration: downpour no gutter
Downspouts often limit the system before the gutter does. A 3 by 4 1/4 inch leader handles 192 gallons per minute, while a 2 by 2 inch leader handles only 30. By our arithmetic, a 2 by 2 leader carries about one-sixth the flow of a 3 by 4 1/4 leader, so small leaders on a wide roof will overflow in a storm.
Where the water goes
Downspout discharge rules for Ocean Breeze homes
Florida code requires gutters with downspouts on homes whose eaves project less than 6 inches, except at gable rakes or where a roof sits above another roof. Downspouts must end at least 1 foot out from the sidewall. On a lot where rain runs toward the house, that clearance matters most in Ocean Breeze's 10.4 inch per hour bursts.
Keeping gutters clear
Leaves, pollen and cleaning in Ocean Breeze
Southern live oaks are semi-evergreen and drop leaves and fruit that clog gutters. Pollen season in Florida runs from January to June, peaking in March and April, with oaks and pines as major producers. Pine needles peak in autumn, September through November. A practical cleaning schedule is after the spring oak drop, before the June through September storm season, and after the autumn needle fall.
Debris that stays in a gutter through a Martin County storm season can back water onto the fascia and soffit. Independent testing found that gutter screens with fine mesh worked better than coarse ones, but still needed brushing in high-pollen areas. Inspect and clean at least twice a year, and more often under heavy tree cover.
Rain on your roof
Preset: 7.59 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Ocean Breeze).
9,457 gallons run off that roof, all of it toward the gutters and downspouts.
Math: square feet ร inches ร 0.623 gallons.
Questions
Gutters in Ocean Breeze: questions
How hard does it rain in Ocean Breeze, Florida?
A 5-minute downpour in a 10-year storm falls at 10.4 inches an hour in Ocean Breeze. A 25-year storm reaches 12.2 inches an hour and a 100-year storm reaches 15.1 inches an hour. These are NOAA Atlas 14 design values for this town. A 24-hour storm in a 10-year event drops 7.59 inches. Gutter sizing should be checked against these burst rates, and the building office can confirm which design basis applies to your permit.
Source: NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Ocean Breeze 2020 Census internal point (27.2409, -80.2252), read Oct 5, 2026
Where must downspouts discharge in Ocean Breeze?
Florida code requires downspouts to discharge at least 1 foot away from the building's sidewall. You can handle this with buried drain pipe, a downspout extension running farther out, or a splash block at the outlet. The rule appears in the residential code, section R318.5. Check with the Town of Ocean Breeze building and permitting office for how this applies to your lot.
Source: 2023 Florida Building Code, Residential, 8th ed., R318.5 (UpCodes viewer, unofficial transcription); FBC-Building 1503.7, read Oct 5, 2026
Do gutters need cleaning more often near oak trees in Ocean Breeze?
Yes, under heavy tree cover you should clean them more often. Southern live oaks drop leaves and fruit that clog gutters, and Florida pollen peaks in March and April. Tower Hill Insurance Group recommends cleaning at least twice a year, usually in spring and fall, and more often with overhanging trees. In Martin County, where Irma's 1 to 3 foot coastal surge reached in 2017, a backed-up gutter can send water toward the foundation.
Source: ask.ifas.ufl.edu, read Oct 5, 2026
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Gutters in Ocean Breeze
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