Gutters ยท Archer
Gutters in Archer, FL
The 10-year, 5-minute downpour at Archer, in Alachua County, runs at 9.54 inches an hour, and a 100-year burst reaches 13.3. Gutters here have to be sized to that burst, not to ordinary afternoon rain. Set the size against the peak.
Updated October 2026

Our workSizing the system
Sizing Archer gutters for a 9.54-inch-an-hour burst
The same storm numbers that set the burst rate also set the total load. A 1-hour rain in a 10-year storm here falls at 2.83 inches an hour, and a 24-hour storm of that size drops 6.34 inches. Over a full day, the roof sheds a large volume, so both the gutter run and the downspout outlet need enough capacity to pass it without backing up.
IllustrationIllustration: half round copper
The plumbing code sizes horizontal gutters from the flow off the roof surface, using capacity tables by diameter and slope. By our arithmetic, a 6-inch half-round gutter at 1/8 inch per foot carries 110 gallons a minute, about 49 percent more than a 5-inch one at the same slope. A larger gutter is the simplest way to add room for a hard Archer storm.
- Ask the installer which design rainfall the sizing used, since the answer changes sharply with that basis.
- Match downspout capacity to the gutter it drains, not just to the gutter size.
- Confirm the exact sizes on your own roof with your building office or installer.
Code and drainage
Where Archer downspouts must discharge
On an Archer house whose eaves project less than 6 inches, the code requires gutters with downspouts. Each leader must end a set distance out from the wall. That distance keeps the roof's runoff from soaking the foundation of a house built on a slab or pier in Alachua County soil.
Archer had 543 housing units in the latest survey, with a 119-unit margin of error. Many of those homes were built around 1972, so older gutters and leaders may not reach the discharge distance the code now asks for. Check where each downspout empties before a storm season, not after one.
Keeping gutters clear
Leaves, pine needles and cleaning frequency
Southern live oaks in Archer litter a yard, and their leaves and fruit clog gutters. Pine pollen peaks in March and April, and the heaviest pine-needle fall comes from September through November. A gutter that is clear in spring can be full by autumn.
Under oaks and pines, clean gutters after the spring leaf drop, before the June through September storm season, and again after the autumn needle peak. Tower Hill Insurance Group recommends at least two cleanings a year, more often under heavy canopy. Clogged gutters can lead to water damage, roof damage and foundation problems.
Rain on your roof
Preset: 6.34 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Archer).
7,900 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 Archer: questions
How big should gutters be for a storm in Archer?
Size them against the 10-year, 5-minute rain, which falls at 9.54 inches an hour here. A 6-inch half-round gutter at 1/8 inch per foot carries 110 gallons a minute under the plumbing code, about 49 percent more than a 5-inch one. Ask your installer which rainfall basis the sizing used, since the result changes sharply with that choice. Confirm the exact fit on your roof with the building office.
Source: NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Archer 2020 Census internal point (29.5458, -82.5170), read Oct 5, 2026
Where should my downspouts send the water in Archer?
Each downspout on an Archer house must discharge at least 1 foot from the sidewall. Any of these options, whether an underground pipe, a tail extension or a splash block, will reach that distance. Keeping runoff away from the foundation matters on a slab or pier house in Alachua County. Check the discharge point before storm season.
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 oaks in Archer?
Clean them after the spring oak leaf drop, before the June to September storm season, and after the autumn pine-needle peak from September through November. Archer has 543 housing units, many built around 1972, and under heavy oak canopy gutters fill fastest. Tower Hill Insurance Group advises at least twice a year, more often under overhanging trees. Clogged gutters can cause roof and foundation damage.
Source: ask.ifas.ufl.edu, read Oct 5, 2026
Do gutters need to be installed by a licensed specialty contractor in Archer?
Florida's contractor rules place gutters inside a specialty structure scope, so the work falls under state contractor rules. Local practice differs by county, so confirm the rule for Alachua County with the building office before you hire anyone. You can check a contractor's license on the state's public license lookup.
Source: law.cornell.edu, read Oct 5, 2026
Sources for this page(36)
- 1.Hurricane Hermine (2016). NOAA NCEI Storm Events Database, event 657954 (Tropical Storm, 2016-09-02, zone/county ALACHUA), bulk details file; FEMA OpenFEMA DisasterDeclarationsSummaries v2 (designatedArea = county). Read Oct 5, 2026.
- 2.Hurricane Irma (2017). NOAA NCEI Storm Events Database, event 720358 (Tropical Storm, 2017-09-10, zone/county ALACHUA), bulk details file; NHC TCR AL112017; FEMA OpenFEMA DisasterDeclarationsSummaries v2 (designatedArea = county). Read Oct 5, 2026.
- 3.NOAA NCEI Storm Events bulk files 2016-2025 (operator count). Read Oct 5, 2026.
- 4.NOAA NCEI Storm Events Database, event 720358 (Tropical Storm, 2017-09-10, zone/county ALACHUA), bulk details file. Read Oct 5, 2026.
- 5.Housing units (ACS 5-year): 543. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25001, via Census Reporter API (release acs2024_5yr). Read Oct 5, 2026.
- 6.Median year homes were built: 1972. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API (release acs2024_5yr). Read Oct 5, 2026.
- 7.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25034, B25035, via Census Reporter API (release acs2024_5yr). Read Oct 5, 2026.
- 8.2023 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").
- 9.NOAA Atlas 14 (HDSC Precipitation Frequency Data Server). Read Oct 5, 2026.
- 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).
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- 18.NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Archer 2020 Census internal point (29.5458, -82.5170), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 19.NOAA Atlas 14 Volume 9 version 2, partial-duration 24-hour depth estimates at the Archer 2020 Census internal point (29.5458, -82.5170), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 20.NOAA NCEI Storm Events Database, event 657954 (Tropical Storm, 2016-09-02, zone/county ALACHUA), bulk details file; FEMA OpenFEMA DisasterDeclarationsSummaries v2 (designatedArea = county), NOAA National Centers for Environmental Information. Read Oct 5, 2026.
- 21.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25001, via Census Reporter API (release acs2024_5yr), U.S. Census Bureau (via Census Reporter). Read Oct 5, 2026.
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- 31.City of Archer, History page (read via WebFetch), cityofarcher.com. Read Oct 5, 2026.
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- 33.FRSA, "New 2023 FBC Eighth Edition is Now in Effect", 2024-02-13, floridaroof.com. Read Oct 5, 2026.
- 34.Miami-Dade County RER notice, Miami. Read Oct 5, 2026.
- 35.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25003, via Census Reporter API (release acs2024_5yr), U.S. Census Bureau (via Census Reporter). Read Oct 5, 2026.
- 36.NOAA Atlas 14 at Archer: 9.54 in/hr (5-minute, 10-year). NOAA Atlas 14 Precipitation Frequency Data Server. Read Oct 5, 2026.
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Gutters in Archer
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