Gutters · Greenacres
Gutters in Greenacres, FL
Greenacres sits in a place where a 5-minute burst in a 10-year storm can fall at 10.9 inches an hour. Your gutters must carry that short surge off the roof before it overwhelms the system. Systems sized only for ordinary rain tend to fail on the first hard afternoon storm of the season. The sections below explain how local design rates set gutter size and what the code requires at the ground.
Updated October 2026
Sizing for local rain
How Greenacres rain sets the size of your gutters
Gutter sizing depends on how much water a roof sheds in a short window, not on the yearly total. Here a 1-hour rain in a 10-year storm falls at 3.38 inches an hour, and a 24-hour storm in the same frequency drops 8.46 inches. The short burst is the harder test for the gutter itself.
IllustrationIllustration: half round copper
Older sizing tables used rainfall records through 1978 and gave lower burst rates for South Florida. Greenacres gets its design figures from NOAA's current Atlas 14 values, so a gutter that looked adequate on an old chart may still overflow in a modern downpour. By our arithmetic, a 100-year 5-minute rate of 15.8 inches an hour is nearly half again the 10-year value.
- A 5-inch half-round gutter carries less water than a 6-inch one at the same slope, so the size difference matters on a large roof.
- A 2 by 3 inch downspout is the smallest leader the code table lists for a sizable roof area.
- Roof pitch raises the area a gutter must serve, so a steep roof needs more capacity than the plan area alone suggests.
Where the water goes
Downspout placement and the 1-foot discharge rule
Under the residential code, a Greenacres house with eaves projecting less than 6 inches needs gutters and downspouts, except at gable end rakes or where one roof sits above another. The rule exists so water leaves the roof in a controlled path instead of running down the walls. Greenacres has 17,482 housing units, so many of these eave details are on older homes.
Your local building office can confirm how this applies to a specific lot. Water that lands close to a Greenacres foundation can pool against the wall during the June to September rain season, which is when most of the year's rain falls at West Palm Beach International Airport.
Keeping gutters clear
Leaves, trees and cleaning schedules in Palm Beach County
Southern live oaks shed leaves and fruit as a litter problem, and Florida's pollen season runs from January to June with oaks among the major producers. Heavy pine needle drop in Greenacres yards typically arrives between September and November. A gutter full of this debris can overflow in the first heavy rain of the season.
Inspectors and insurers commonly advise cleaning gutters at least twice a year and more often under heavy tree cover. Clogged gutters can lead to water damage, mold, roof damage and foundation problems. In a county where a 10-year 5-minute burst reaches 10.9 inches an hour, a blocked gutter fails fast.
Rain on your roof
Preset: 8.46 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Greenacres).
10,541 gallons run off that roof, all of it toward the gutters and downspouts.
Math: square feet × inches × 0.623 gallons.
Questions
Gutters in Greenacres: questions
How hard does it rain in Greenacres?
The short bursts are the key number. A 5-minute rain in a 10-year storm falls at 10.9 inches an hour here, and a 100-year burst reaches 15.8 inches an hour. Over a full day, a 10-year storm drops 8.46 inches. Gutter sizing for Greenacres should use these local figures, not the yearly rainfall total. Ask your gutter installer which design rate they used.
Source: NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Greenacres 2020 Census internal point (26.6276, -80.1372), read Oct 5, 2026
Do Greenacres homes need downspouts?
Buildings in Florida with eaves projecting less than 6 inches must have gutters and downspouts under the state's residential code, unless the gutter would sit at a gable end rake or on a roof that stands above another roof. In Greenacres, a downspout must discharge at least 1 foot from the sidewall, and Palm Beach County's 61.75-inch average annual rain makes that clearance matter. The Greenacres building office can confirm how this applies to your home and lot before any work starts.
Source: 2023 Florida Building Code, Residential, 8th ed., R318.5 (UpCodes viewer, unofficial transcription); FBC-Building 1503.7, read Oct 5, 2026
How often should I clean gutters near oak trees?
Inspectors and insurers commonly advise cleaning gutters at least twice a year, typically in spring and fall, and more often under heavy overhead trees. Southern live oaks drop leaves and fruit as litter, and pollen season runs January to June in Palm Beach County. Pine needles peak from September through November. Clean after the spring oak drop and again after the autumn needle fall.
Source: thig.com, read Oct 5, 2026
What gutter size works for a Greenacres roof?
Size depends on roof area, pitch and the rain rate used for design. A 6-inch half-round gutter at 1/8 inch per foot slope carries 110 gallons per minute under the plumbing code's table, while a 5-inch one carries 74. Local design figures are higher than older tables used, so ask the installer to show the calculation based on current NOAA values.
Source: 2023 Florida Building Code, Plumbing, 8th ed., Chapter 11 (UpCodes viewer, unofficial transcription), read Oct 5, 2026
Sources for this page(33)
- 1.Housing units (ACS 5-year): 17,482. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25001, via Census Reporter API. Read Oct 5, 2026.
- 2.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service). Read Oct 5, 2026.
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- 4.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
- 5.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25024, via Census Reporter API. Read Oct 5, 2026.
- 6.Hurricane Matthew (2016). NOAA National Hurricane Center, Tropical Cyclone Report: Hurricane Matthew (AL142016). Read Oct 5, 2026.
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- 8.NOAA Atlas 14 (HDSC Precipitation Frequency Data Server). Read Oct 5, 2026.
- 9.2023 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").
- 10.2023 Florida Building Code, Residential, 8th ed., R318.5 (UpCodes viewer, unofficial transcription); FBC-Building 1503.7. Read Oct 5, 2026. FBC text read from UpCodes (unofficial transcription): check floridabuilding.org or the ICC viewer before quoting (spec 8.7).
- 11.2023 Florida Building Code, Residential, 8th ed., Chapter 3 (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).
- 12.2023 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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- 17.NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Greenacres 2020 Census internal point (26.6276, -80.1372), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 18.NOAA Atlas 14 Volume 9 version 2, partial-duration 24-hour depth estimates at the Greenacres 2020 Census internal point (26.6276, -80.1372), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
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- 24.Florida Statutes, section 627.7011 (2026), Florida Legislature. Read Oct 4, 2026.
- 25.City of Greenacres - Building Division, City of Greenacres. Read Oct 5, 2026.
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- 27.FRSA, "New 2023 FBC Eighth Edition is Now in Effect", 2024-02-13, floridaroof.com. Read Oct 5, 2026.
- 28.Miami-Dade County RER notice, Miami. Read Oct 5, 2026.
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- 31.Wikipedia, 'List of municipalities in Florida', Wikipedia. Read Oct 5, 2026.
- 32.Florida Statutes, section 713.135 (2026), Florida Legislature. Read Oct 5, 2026.
- 33.NOAA Atlas 14 at Greenacres: 10.9 in/hr (5-minute, 10-year). NOAA Atlas 14 Precipitation Frequency Data Server. Read Oct 5, 2026.
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Gutters in Greenacres
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