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Gutters · Leesburg

Gutters in Leesburg, FL

Leesburg's airport station records 43.78 inches of rain in a normal year, the lowest of ten Florida normals stations compared here, yet NOAA Atlas 14 puts the city's five-minute rate in a 10-year storm at 9.29 inches an hour. Gutters overflow in that burst, not in the yearly average, so the burst is what to size for.

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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

A dry year on paper, hard bursts in practice

Miami's normals station, by contrast, averages 67.41 inches a year. Short bursts are another matter: the 10-year, five-minute rate at Leesburg's 2020 Census point beats the 8.71 inches an hour Atlas 14 gives Orlando, and the 100-year burst reaches 12.8. June through August averages 19.49 inches at the airport.

Irma left 10.13 inches on a Leesburg gauge in 2017, and Milton dropped 8.89 inches 5.5 miles south of town in 2024. In a city set between Lake Harris and Lake Griffin, the code's firm rule is about the house itself: downspouts must discharge at least 1 foot from the wall.

Milton's 72-knot gust at the airport tests gutter hangers too: one hidden-hanger maker spaces its hangers 24 inches apart as standard and 16 inches in storm-prone areas for added uplift resistance. On the 68 percent of homes built before 2000, check the fascia those hangers screw into; Florida's contractor rules let a roofing contractor replace fascia as needed during roof work.

Close-up of an old sagging gutter pulling away from a rotted, water-stained fascia board with peeling paint under the eave (illustration)Illustration

Illustration: soft fascia behind a sagging gutter

Sizing

How to size a gutter run for a 9.29-inch burst

  1. 01

    Measure the roof area

    Take the plan area of the roof section that drains to one run, measured flat as if seen from above.

  2. 02

    Adjust for pitch

    Multiply by the industry factor: 1.00 up to 3 in 12, 1.05 for 4 to 5, 1.10 for 6 to 8, 1.20 for 9 to 11, 1.30 at 12 in 12.

  3. 03

    Pick the design rain rate

    SMACNA-style gutter tables use the five-minute, 10-year rate: 9.29 inches an hour here. The plumbing code sizes drains on the 100-year hourly rate, 3.91, which gives a very different answer.

  4. 04

    Convert to flow

    One gallon a minute drains 96.15 square feet at 1 inch an hour, so flow is design area times rate, divided by 96.15.

  5. 05

    Match gutters and downspouts

    The plumbing code rates half-round gutters at 1/8-inch fall at 74 gallons a minute for 5-inch and 110 for 6-inch, and round downspouts at 92 for 3-inch and 192 for 4-inch.

Worked through for one Leesburg run: 1,000 square feet of plan area at a 6-in-12 pitch counts as 1,100 square feet. At 9.29 inches an hour that is about 106 gallons a minute, within a 6-inch half-round's 110 but well past a 5-inch's 74, and within one 4-inch round downspout or two 3-inch ones. This is arithmetic on code and NOAA numbers, not a code requirement; a measured roof plan sets the real answer.

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Rain on your roof

How much water a Leesburg roof sheds

Rain on your roof

Preset: 6.04 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Leesburg).

7,526 gallons run off that roof, all of it toward the gutters and downspouts.

Math: square feet × inches × 0.623 gallons.

Questions

Gutters in Leesburg: questions

Do I need a permit to install gutters in Leesburg?

No Florida code section read for this page sets a permit rule for gutters alone. The building code requires a permit to alter or repair a building and lets the building official waive one for ordinary minor repairs, so for a city address the City of Leesburg Building Department makes that call. What the code does require is gutters with downspouts on buildings whose eaves project less than 6 inches.

Source: FBC-B 2023 Ch. 1, read Oct 5, 2026

Related: Gutters

Should 20-year-old gutters on a Leesburg house be replaced?

Condition decides, not age, and the residential code supplies the standard. Gutters must be metal or plastic approved for outdoor use, with lapped, soldered or caulked joints, and fastened with corrosion-resistant hardware that matches the gutter metal. Joints that drip, fasteners that rust or hangers that let a run sag all fall short of it. On the 68 percent of Leesburg homes built before 2000, press on the fascia behind the gutter too, since soft or stained wood will not hold new hangers.

Source: 2023 Florida Building Code, Residential, 8th ed., Chapter 9 (UpCodes viewer, unofficial transcription), read Oct 5, 2026

Related: Gutters

Do oak trees make gutters on Leesburg homes clog faster?

Under a big canopy, yes. UF/IFAS lists leaf and fruit litter as a drawback of the southern live oak, a tree whose crown can spread 60 to 120 feet. Oak pollen peaks in March and April, and pine needles fall hardest from September through November. A Florida home insurer advises cleaning gutters at least twice a year, and more often under overhanging trees. In Leesburg, a clear run matters most before June, when the airport station's 19.49-inch summer begins.

Source: ask.ifas.ufl.edu, read Oct 5, 2026

Related: Gutters

Nearby

Gutters near Leesburg

Sources for this page(35)
  1. 1.NOAA NCEI U.S. Climate Normals 1991-2020, annual/seasonal (normals-annualseasonal-1991-2020), NCEI Access Data Service. Read Oct 5, 2026.
  2. 2.NOAA National Hurricane Center, Tropical Cyclone Report: Hurricane Irma (AL112017). Read Oct 5, 2026.
  3. 3.Wikipedia, "Leesburg, Florida" (revision 1374529400). Read Oct 5, 2026.
  4. 4.NOAA National Hurricane Center, Tropical Cyclone Report: Hurricane Milton (AL142024). Read Oct 5, 2026.
  5. 5.Share of homes built before 2000: 68%. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), table B25034 (Year Structure Built), via Census Reporter API. Read Oct 5, 2026.
  6. 6.Permit office: City of Leesburg Building Department. City of Leesburg Building Department. Read Oct 5, 2026.
  7. 7.Hurricane Milton (2024). NOAA National Hurricane Center, Tropical Cyclone Report: Hurricane Milton (AL142024). Read Oct 5, 2026.
  8. 8.NOAA Atlas 14 (HDSC Precipitation Frequency Data Server). Read Oct 5, 2026.
  9. 9.NOAA National Centers for Environmental Information. Read Oct 5, 2026.
  10. 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. 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. 12.Gutterall 6K hanger. Read Oct 5, 2026.
  13. 13.law.cornell.edu. Read Oct 5, 2026.
  14. 14.bergerbp.com. Read Oct 5, 2026.
  15. 15.2023 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").
  16. 16.FBC-B 2023 Ch. 1. Read Oct 5, 2026.
  17. 17.2023 Florida Building Code, Residential, 8th ed., Chapter 9 (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-29 (the research cites it "as COM-29").
  18. 18.ask.ifas.ufl.edu. Read Oct 5, 2026.
  19. 19.blogs.ifas.ufl.edu. Read Oct 5, 2026.
  20. 20.ufdcimages.uflib.ufl.edu. Read Oct 5, 2026.
  21. 21.thig.com. Read Oct 5, 2026.
  22. 22.City of Leesburg, Building Department, City of Leesburg. Read Oct 5, 2026.
  23. 23.NOAA Atlas 14 Volume 9 version 2, partial-duration point estimates at the Leesburg 2020 Census internal point (28.7172, -81.9031), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
  24. 24.Florida Statutes, section 627.7011 (2026), Florida Legislature. Read Oct 4, 2026.
  25. 25.Citizens Property Insurance Corporation, Citizens Property Insurance Corporation. Read Oct 4, 2026.
  26. 26.Florida Building Commission, "Florida Building Code Effective Dates", Florida Building Commission. Read Oct 5, 2026.
  27. 27.FBCR Ch. 9, International Code Council (Florida Building Commission). Read Oct 4, 2026.
  28. 28.Florida Statutes, section 553.844 (2026), International Code Council (Florida Building Commission). Read Oct 5, 2026.
  29. 29.Florida Statutes, section 553.842 (2026), The Florida Senate. Read Oct 5, 2026.
  30. 30.FEMA FL-RA2, FEMA. Read Oct 5, 2026.
  31. 31.eng.ufl.edu, University of Florida / UF/IFAS. Read Oct 5, 2026.
  32. 32.OIR form, Florida Office of Insurance Regulation. Read Oct 4, 2026.
  33. 33.Florida Statutes, section 215.5586 (2026), Florida Legislature. Read Oct 4, 2026.
  34. 34.My Safe Florida Home program, My Safe Florida Home program. Read Oct 5, 2026.
  35. 35.NOAA Atlas 14 at Leesburg: 9.29 in/hr (5-minute, 10-year). NOAA Atlas 14 Precipitation Frequency Data Server. Read Oct 5, 2026.

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Gutters in Leesburg

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