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Gutters · Stuart

Gutters in Stuart, FL

Stuart's NOAA weather station averages 62.72 inches of rain a year, and NOAA's Atlas 14 puts a 10-year, five-minute burst over the city at 10.3 inches an hour. Gutters in Stuart have to be sized for that burst rather than the average shower, and Florida's code sends each downspout's water at least 1 foot clear of the wall.

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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.

Rain

10.3 inches an hour: Stuart's five-minute storm

Two-thirds of that rain, 67.6 percent of the annual normal, falls from May through October. The Atlas 14 figures for the Census point in Stuart climb in rarer storms: 15 inches an hour for a 100-year, five-minute burst, and 7.66 inches of rain in a 10-year, 24-hour storm.

Named storms pile on: in 2022, rain south of Hurricane Ian's track still flooded roadways in parts of Martin County.

Code and salt air

Downspouts, fasteners and salt air in Stuart

Florida's residential code requires gutters only where eaves stick out less than 6 inches, but wherever downspouts go in, they must discharge at least 1 foot from the wall, by splash block, extension or underground pipe (R318.5).

Stuart sits on the St. Lucie River and the Indian River Lagoon near the Atlantic, and salt is hard on metal. FEMA notes corrosion is most pronounced on homes within 3,000 feet of the ocean, the code wants gutter fasteners corrosion-resistant and compatible with the gutter itself (R903.4.2), and one hidden-hanger maker recommends 16-inch hanger spacing in coastal, storm-prone areas instead of its standard 24.

Downspouts follow the same math: a 3-inch round one, rated at 92 gallons a minute, serves about 859 square feet of roof at 10.3 inches an hour. On a house near the city's 1982 median age, check the fascia behind an old gutter before new hangers go into it.

Wide view of a two-story stucco home with a charcoal shingle hip roof and a complete white gutter and downspout system, screened lanai, palms and a live oak (illustration)Illustration

Illustration: a full gutter and downspout system on a two-story home.

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Rain on your roof

How much water a Stuart roof sheds

Rain on your roof

Preset: 7.66 inches, the 10-year 24-hour rain (NOAA Atlas 14 at Stuart).

9,544 gallons run off that roof, all of it toward the gutters and downspouts.

Math: square feet × inches × 0.623 gallons.

Questions

Gutters in Stuart: questions

What size gutters does a Stuart house need?

Size for the burst, not the average. At the 10.3 inches an hour Atlas 14 gives Stuart for a 10-year, five-minute storm, a 5-inch half-round gutter handles roughly 691 square feet of roof plan area and a 6-inch about 1,027, by our arithmetic on the plumbing code's capacity table. At equal slope, that larger gutter moves roughly 49 percent more water. In a city that averages 62.72 inches of rain a year, a long slope draining into one run is where the bigger size pays off.

Source: 2023 FBC-Plumbing Table 1106.6; NOAA Atlas 14 and NCEI normals, read October 5, 2026.

Related: Gutters

When should gutters be cleaned in Stuart?

Twice a year, spring and fall, is the guidance from Tower Hill, a Florida home insurer, with extra rounds under overhanging trees. In Stuart, aim one of those cleanings at late spring, before the wet half of the year: 67.6 percent of the city's normal rainfall arrives from May through October. Oak pollen peaks in March and April, per UF/IFAS, and pine needles drop heaviest from September through November, so a fall cleaning after the needle peak catches the rest.

Source: Tower Hill Insurance Group, March 2025; UF/IFAS; NOAA NCEI 1991-2020 monthly normals, read October 5, 2026.

Related: Gutters

Do gutters on a Stuart condo's flat roof follow different rules?

Yes, when the gutter also holds down the roof membrane's edge. On low-slope commercial roofs, such gutters must be designed for the code's wind loads and tested to SPRI GT-1, the same family of edge tests the code applies to metal roof edges. That matters in Stuart, where 38.8 percent of homes are in buildings of 10 or more units; any of those with a low-slope roof and an edge-holding gutter falls under the rule. An ordinary residential gutter on a pitched roof follows R903.4.2 and R318.5 instead.

Source: 2023 FBC-Building 1504.5 (UpCodes, unofficial transcription), read October 5, 2026; ACS 2020-2024.

Related: Gutters

Sources for this page(49)
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  4. 4.Share of homes in buildings with 10+ units: 38.8%. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25024, via Census Reporter API. Read Oct 5, 2026.
  5. 5.Median year homes were built: 1982. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
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  49. 49.NOAA Atlas 14 at Stuart: 10.3 in/hr (5-minute, 10-year). NOAA Atlas 14 Precipitation Frequency Data Server. Read Oct 5, 2026.

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Gutters in Stuart

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