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Gutters · Jupiter Inlet Colony

Gutters in Jupiter Inlet Colony, FL

In a 10-year storm, rain in Jupiter Inlet Colony can fall at 10.5 inches an hour over five minutes. A short burst like that overwhelms a gutter sized for ordinary showers. Gutters here need enough capacity for the hardest bursts, and downspouts need to carry that water away from the foundation.

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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.

Rainfall and sizing

How hard the rain falls here and what it means for gutter size

The 5-minute, 10-year rate is 10.5 inches an hour and the 25-year rate is 12.4. A 1-hour storm in a 10-year event falls at 3.32 inches an hour. Over 24 hours, a 10-year storm drops 9.27 inches. Gutter capacity depends on which of these numbers the sizing uses.

Heavy Florida afternoon downpour pouring off a roof edge with no gutter, splashing mud onto the wall and washing out the flower bed along the foundation (illustration)Illustration

Illustration: downpour no gutter

Across Palm Beach County, the airport at West Palm Beach records 61.75 inches of rain in a normal year, and 67.3 percent of it falls from May through October. Rainfall peaks in August, when the average total reaches 8.68 inches. A gutter here works hardest during the same months that the Atlantic hurricane season runs.

The plumbing code sizes horizontal gutters from the flow off the roof, using slope and cross-section. A 6-inch half-round at 1/8 inch per foot carries 110 gallons a minute. A 5-inch half-round at the same slope carries 74, so the 6-inch size gives about 49 percent more capacity. That is a meaningful step up for a roof that drains a large plan area.

Pitched roofs need a design area larger than their flat plan area. The conversion factor rises from 1.00 for a level roof to 1.30 at a 12 in 12 pitch. Confirm the final gutter and downspout size with the Town of Jupiter Inlet Colony Building Department before you order materials.

Downspouts and discharge

Downspout rules and where the water goes

Gutters with downspouts are required on the 97.5 percent of Jupiter Inlet Colony homes that are single-family detached, provided their eaves project less than 6 inches. Where a downspout ends matters as much as its size. Water that pools against the foundation can undermine the slab on a lot this close to the inlet.

Leaders are sized separately. A 3 by 4-1/4 inch or 4-inch round leader carries 192 gallons a minute, and a 4 by 5-inch or 5-inch round carries 360. Add half the area of any vertical wall that sheds rain onto the roof when you size the leaders.

  • Gutter and leader materials must be metal or approved plastic for outdoor exposure.
  • Fasteners must be corrosion resistant and compatible with the gutter material.
  • Joints must be lapped, soldered or caulked.

Trees and debris

Leaves, pine needles and cleaning schedule

Southern live oaks drop leaves and fruit that become litter. Pollen from oaks and pines peaks in March and April in Florida. Pine needles drop heaviest in the autumn months, and the fall of needles from those trees sends a steady load into gutters near the inlet. Clogged gutters from these sources can cause water damage and roof damage, so clean them on a set schedule.

Under heavy canopy, a practical rhythm is after the spring oak drop, before the June through September storm season, and after the autumn pine-needle peak. Fine-mesh gutter screens performed better than larger-hole screens in one independent test, but they still need brushing in high-pollen areas.

Rain on your roof

Preset: 9.27 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Jupiter Inlet Colony).

11,550 gallons run off that roof, all of it toward the gutters and downspouts.

Math: square feet × inches × 0.623 gallons.

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Questions

Gutters in Jupiter Inlet Colony: questions

How big should gutters be for a Jupiter Inlet Colony home?

Size them against the rain a 10-year storm can bring here, not average rain. The 5-minute, 10-year rate in Jupiter Inlet Colony is 10.5 inches an hour. The plumbing code sizes gutters from roof flow, so a 6-inch half-round at 1/8 inch per foot carries 110 gallons a minute, while a 5-inch carries 74. Confirm the final size with the Town of Jupiter Inlet Colony Building Department.

Source: NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Jupiter Inlet Colony 2020 Census internal point (26.9480, -80.0752), read Oct 5, 2026

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How far from the house must a downspout discharge in Jupiter Inlet Colony?

At least 1 foot from the building's sidewall, per the state residential code that applies to the 97.5 percent of local homes that are single-family detached. Underground piping, tail extensions and splash blocks all count as ways to carry the water out. Check the Town of Jupiter Inlet Colony Building Department for any local requirement beyond the state code.

Source: 2023 Florida Building Code, Residential, 8th ed., R318.5 (UpCodes viewer, unofficial transcription); FBC-Building 1503.7, read Oct 5, 2026

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Do gutters need to be on every home in Jupiter Inlet Colony?

The code requires gutters with downspouts on buildings whose eaves project less than 6 inches, except at gable end rakes or on a roof above another roof. Most homes here are single-family detached, 97.5 percent of units, so the rule applies to most houses in town.

Source: 2023 Florida Building Code, Residential, 8th ed., R318.5 (UpCodes viewer, unofficial transcription); FBC-Building 1503.7, read Oct 5, 2026

Related: Gutters

How often should I clean gutters under trees in Jupiter Inlet Colony?

Insurers and roofing trade groups advise cleaning gutters at least twice a year, in spring and fall, and more often under overhanging trees. In Jupiter Inlet Colony, where 39.3 percent of residents are 65 or older, a regular cleaning schedule is easier to keep. Southern live oaks and pines both shed litter here, with pine needles peaking from September through November.

Source: thig.com, read Oct 5, 2026

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Nearby

Gutters near Jupiter Inlet Colony

Sources for this page(35)
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  35. 35.NOAA Atlas 14 at Jupiter Inlet Colony: 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 Jupiter Inlet Colony

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