Gutters · Richmond West
Gutters in Richmond West, FL
In a 10-year storm, a 5-minute downpour in Richmond West falls at 10.7 inches an hour. That is a short, hard burst that can overflow a gutter sized for ordinary rain. A 100-year burst here reaches 15.4 inches an hour. Gutters and downspouts in this area need to be sized for that rate, not for average rainfall.
Updated October 2026

Rainfall and sizing
Sizing gutters for Richmond West burst rain
Short bursts set the load on a gutter. Here a 1-hour rain in a 10-year storm falls at 3.38 inches an hour, and a 24-hour storm of that size drops 8.19 inches. The 1-hour and daily figures show how much water a gutter may carry over a long storm, while the 5-minute rate shows the peak it must pass.
IllustrationIllustration: downspout splash block
The Florida plumbing code sizes horizontal gutters by roof flow. Pitched at 1/8 inch per foot, a 6-inch half-round gutter moves 110 gallons a minute; a 5-inch model manages only 74. The 6-inch size carries about 49 percent more, so it is the safer choice for a roof draining into a long run here.
Downspout discharge
Where your downspouts send the water on your property
The residential code requires downspouts to discharge at least 1 foot from the sidewall. That distance can be met with underground piping, tail extensions or splash blocks. Many Richmond West lots are single-family detached homes, so the water from each downspout should move away from the foundation and off the neighbor's side of the lot.
Downspout capacity is set separately from the gutter. A 3 by 4 1/4 inch leader carries 192 gallons per minute, and a 2 by 2 inch leader carries only 30. A small leader under a large roof section will back water into the gutter during a heavy burst.
Debris and maintenance
Leaves, trees and cleaning in Richmond West
Southern live oaks drop a litter of leaves and fruit, and they can reach 60 to 80 feet tall. Most of the needle fall from pines comes between September and November. Clean gutters before the June to September storm season and again after the autumn needle drop, and clean more often under heavy canopy.
Rain on your roof
Preset: 8.19 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Richmond West).
10,205 gallons run off that roof, all of it toward the gutters and downspouts.
Math: square feet × inches × 0.623 gallons.
Questions
Gutters in Richmond West: questions
How much rain falls in a Richmond West storm?
In a 10-year storm, a 5-minute downpour in Richmond West falls at 10.7 inches an hour, and a 1-hour rain falls at 3.38 inches an hour. A 24-hour storm of that size drops 8.19 inches. In a 100-year storm the 24-hour total reaches 14.4 inches. Gutters and downspouts here should be sized for these rates. Confirm local figures with the Miami-Dade County building office before you buy.
Source: NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Richmond West 2020 Census internal point (25.6093, -80.4296), read Oct 5, 2026
How big should gutters be on a Richmond West home?
Gutter size follows roof flow under the plumbing code. At a 1/8 inch per foot slope, you get 110 gallons per minute from a 6-inch half-round gutter, compared with 74 from a 5-inch one. Richmond West short bursts reach 10.7 inches an hour in a 10-year storm. Ask your installer to size the gutter and downspouts to the roof area that drains to each run.
Source: 2023 Florida Building Code, Plumbing, 8th ed., Chapter 11 (UpCodes viewer, unofficial transcription), read Oct 5, 2026
Where should downspouts discharge in Richmond West?
Keep every downspout outlet at least a full foot out from the wall. Richmond West homes are 83.6 percent single-family detached, so most lots have room to route water away from the foundation. Underground piping, tail extensions or splash blocks can meet that distance. Check your own lot grade before deciding.
Source: 2023 Florida Building Code, Residential, 8th ed., R318.5 (UpCodes viewer, unofficial transcription); FBC-Building 1503.7, read Oct 5, 2026
Do Richmond West trees affect my gutters?
Yes. Southern live oaks can grow 60 to 80 feet tall and drop a litter of leaves and fruit. Most of the needle fall from pines comes between September and November. Clean gutters twice a year at least, and more often under heavy canopy, before the June to September storm season. Richmond West's housing stock is largely older, with a median build year of 1996 across roughly 10,748 units, so gutters on these homes often have years of debris built up in them.
Source: ask.ifas.ufl.edu, read Oct 5, 2026
Sources for this page(29)
- 1.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25024, via Census Reporter API. Read Oct 5, 2026.
- 2.NWS Miami, Weather Safety - Lightning. Read Oct 5, 2026.
- 3.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
- 4.Single-family detached share of housing units: 83.6%. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25024, via Census Reporter API. Read Oct 5, 2026.
- 5.Median year homes were built: 1996. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
- 6.2023 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").
- 7.2023 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).
- 8.2023 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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- 12.thig.com. Read Oct 5, 2026.
- 13.NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Richmond West 2020 Census internal point (25.6093, -80.4296), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 14.NOAA Atlas 14 Volume 9 version 2, partial-duration 24-hour depth estimates at the Richmond West 2020 Census internal point (25.6093, -80.4296), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 15.Wikipedia, 'Richmond West, Florida' (revision 1374799534), Wikipedia. Read Oct 5, 2026.
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- 17.Florida Statutes, section 627.7011 (2026), Florida Legislature. Read Oct 4, 2026.
- 18.Miami-Dade County Regulatory and Economic Resources (RER) - Building & Permits, Miami. Read Oct 5, 2026.
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- 21.miamidade.gov, miamidade.gov. Read Oct 5, 2026.
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- 23.Florida Statutes, section 713.135 (2026), Florida Legislature. Read Oct 5, 2026.
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- 29.NOAA Atlas 14 at Richmond West: 10.7 in/hr (5-minute, 10-year). NOAA Atlas 14 Precipitation Frequency Data Server. Read Oct 5, 2026.
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Gutters in Richmond West
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