Gutters · West Melbourne
Gutters in West Melbourne, FL
A 5-minute downpour in a 10-year storm falls at 10.5 inches an hour in West Melbourne. That rate is what sizes your gutters and downspouts, not the average rainfall. Most of the water a storm drops on a roof arrives in a short, heavy burst, and the gutter system has to move it away from the house before it spills over the edge or floods the ground beside the foundation.
Updated October 2026
Our workRainfall and sizing
How much rain your gutters must handle here
Plumbers and gutter makers size gutters from a rainfall rate, not from the yearly total. For West Melbourne the rate in a 10-year, 5-minute burst is 10.5 inches an hour. In a 25-year storm it rises to 12.3, and in a 100-year storm to 14.9. The 1-hour rate for a 10-year storm is 3.05 inches an hour.
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Brevard County as a whole gets about 50 to 55 inches of rain a year, and June through August brings roughly 40 percent of it at Melbourne International. A 24-hour storm in a 10-year event drops 7.42 inches, and a 100-year storm drops 13 inches. Your gutters have to carry that water in a short window, and the summer months are when it comes.
Code and capacity
Sizing gutters and downspouts to the code
The Florida Plumbing Code sizes horizontal gutters from the flow off the roof surface. A 6-inch half-round gutter at 1/8 inch per foot carries about 110 gallons per minute, which is about 49 percent more than a 5-inch half-round at the same slope. Downspouts are sized separately. A 3 by 4 1/4 inch or 4-inch round leader carries 192 gallons per minute, and a 2 by 2 inch leader only 30.
The code also adds half the area of any vertical wall that sheds rain onto the roof. A two-story wall above a roof valley can add a large share of extra flow, so the downspouts at that point need to be larger than the gutter run beside them.
Many homes in West Melbourne are newer than the county average, so the eave and gutter layout on these lots is likely to follow the modern rule. Check that each downspout empties onto a splash block or extension, not against the foundation. Confirm the exact requirements with the City of West Melbourne Building Department.
Maintenance and drainage
Leaves, trees and where the water goes
Southern live oaks in Florida drop leaves and fruit that clog gutters, and the UF/IFAS guidance calls that litter a recurring problem. Oak and pine pollen reaches its highest levels during March and April. Between September and November, the bulk of pine needles come down. Clean the gutters after the spring oak drop, before the June through September storm season, and again after the autumn needle fall.
- Clean gutters at least twice a year, in spring and fall, and more often under heavy canopy.
- Check that downspouts discharge at least 1 foot from the wall.
- Look for granules collecting in gutters, a sign of an aging roof.
Clogged gutters send water against the fascia and foundation. Water that does not leave the lot can cause damage, mold and pest problems. Confirm the drainage plan on your lot with the City of West Melbourne Building Department before you change anything.
Rain on your roof
Preset: 7.42 inches, the 10-year 24-hour rain (NOAA Atlas 14 at West Melbourne).
9,245 gallons run off that roof, all of it toward the gutters and downspouts.
Math: square feet × inches × 0.623 gallons.
Questions
Gutters in West Melbourne: questions
How big should my gutters be for a West Melbourne storm?
Size them from the rain rate, not the yearly total. In a 10-year, 5-minute burst West Melbourne gets 10.5 inches an hour, and in a 100-year storm it reaches 14.9. A 6-inch half-round gutter at 1/8 inch per foot carries about 110 gallons per minute. A 5-inch carries 74. Ask a contractor to show the calculation for your roof area.
Source: NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the West Melbourne 2020 Census internal point (28.0504, -80.6583), read Oct 5, 2026
Where should my downspouts drain in West Melbourne?
Downspouts have to empty at least 1 foot out from the sidewall, according to the code. Pick underground piping, a tail extension, or a splash block to do the job. Do not let water pool against the slab. West Melbourne's 24-hour, 10-year storm drops 7.42 inches, so a short extension is not enough on a flat lot.
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 under oak trees in Melbourne?
Plan on cleaning them at least twice yearly, once in spring and once in fall, and do it more frequently if your roof sits under dense trees. Southern live oak leaves and fruit are a litter problem, and pine needles fall most heavily from September through November. Clean after the spring oak drop, before the June through September storm season, and again in late fall. Many homes in Melbourne were built around 2003, so many roofs have aged gutters that clog more easily, which makes a regular schedule especially worthwhile.
Source: ask.ifas.ufl.edu, read Oct 5, 2026
Do I need a permit to replace gutters in West Melbourne?
Confirm with the City of West Melbourne Building Department. The city's official page lists roof permits there. Under HB 803 (2026), roofing still needs a permit regardless of value, and homes in a flood zone do not qualify for the exemption. Ask the department whether gutter work on your home needs a permit.
Source: City of West Melbourne Building Department, read Oct 5, 2026
Sources for this page(31)
- 1.City of West Melbourne, City History. Read Oct 5, 2026.
- 2.City of West Melbourne, Building Department. Read Oct 5, 2026.
- 3.Hurricane Irma (2017). NWS Melbourne, Post Tropical Cyclone Report: Hurricane Irma (2017). Read Oct 5, 2026.
- 4.NOAA NCEI, U.S. Climate Normals 1991-2020 (annual/seasonal), access-data API. Read Oct 5, 2026.
- 5.Hurricane Matthew (2016). NWS Melbourne, Post Tropical Cyclone Report: Hurricane Matthew (2016). Read Oct 5, 2026.
- 6.U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, table B25034. Read Oct 5, 2026.
- 7.Permit office: City of West Melbourne Building Department. City of West Melbourne Building Department. Read Oct 10, 2026.
- 8.Median year homes were built: 2003. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API. 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 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").
- 12.2023 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).
- 13.ask.ifas.ufl.edu. Read Oct 5, 2026.
- 14.blogs.ifas.ufl.edu. Read Oct 5, 2026.
- 15.ufdcimages.uflib.ufl.edu. Read Oct 5, 2026.
- 16.thig.com. Read Oct 5, 2026.
- 17.Owens Corning, "3 Signs That It's Time to Replace Your Roof". Read Oct 5, 2026.
- 18.Florida Roofing and Sheet Metal Contractors Association (FRSA). Read Oct 5, 2026.
- 19.NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the West Melbourne 2020 Census internal point (28.0504, -80.6583), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 20.NWS Melbourne, Post Tropical Cyclone Report: Hurricane Irma (2017), National Weather Service. Read Oct 5, 2026.
- 21.NOAA Atlas 14 Volume 9 version 2, partial-duration 24-hour depth estimates at the West Melbourne 2020 Census internal point (28.0504, -80.6583), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 22.NWS Melbourne, Post Tropical Cyclone Report: Hurricane Matthew (2016), National Weather Service. Read Oct 5, 2026.
- 23.City of West Melbourne Building Department, City of West Melbourne Building Department. Read Oct 5, 2026.
- 24.U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, table B25035, U.S. Census Bureau (via Census Reporter). Read Oct 5, 2026.
- 25.U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, tables B25034/B25035, U.S. Census Bureau (via Census Reporter). Read Oct 5, 2026.
- 26.Brevard County, Building Code Wind Speed Maps, Brevard County. Read Oct 5, 2026.
- 27.Florida Statutes, section 627.7011 (2026), Florida Legislature. Read Oct 4, 2026.
- 28.2023 Florida Building Code, Building, 8th ed., Chapter 15 (UpCodes viewer, unofficial transcription), UpCodes (Florida Building Code transcription). Read Oct 5, 2026.
- 29.Miami-Dade County RER notice, Miami. Read Oct 5, 2026.
- 30.2023 Florida Building Code, Building, 8th ed., Chapter 1 (UpCodes viewer, unofficial transcription), UpCodes (Florida Building Code transcription). Read Oct 5, 2026.
- 31.NOAA Atlas 14 at West Melbourne: 10.5 in/hr (5-minute, 10-year). NOAA Atlas 14 Precipitation Frequency Data Server. Read Oct 5, 2026.
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Gutters in West Melbourne
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