Re-roofs ยท Port St. John
Roof replacement in Port St. John, FL
1989 is the median build year for homes in Port St. John, so many roofs here are likely older than their owners expect. Only 1.9 percent of homes date from 2010 or later. A re-roof on one of these houses brings a county permit, two inspections and the 25 percent rule.
Updated October 2026

Port St. John figures this page uses
- Median year homes were built
- 1989
- Share of homes built 2010 or later
- 1.9%
- Share of homes built before 1980
- 10.6%
- Owner-occupied share of occupied homes
- 94.3%
Housing age
How old are Port St. John roofs?
About 10.6 percent of Port St. John homes were built before 1980, and only 1.9 percent in 2010 or later. Most of the stock sits in between, near the 1989 median. That suggests many original shingle roofs are now past their expected service life.
Nearly 94 percent of occupied homes here are owner-occupied, and 92.9 percent are single-family detached. You are likely the person deciding on this roof. Compare its age with your closing papers before a leak makes the decision for you.
For shingle roofs over 25 years old, Citizens Property Insurance requires proof of how much service life the roof has left. A roof from the 1989 era is well past that mark, so ask your insurer or agent what they require.
Permit rules
Where the roof permit comes from in Port St. John
No city office covers Port St. John, since it is an unincorporated census-designated place. Brevard County Planning & Development, Building Permits, issues the roof permit. The county page was checked as verified.
A Florida permit has clocks. It goes invalid if work does not begin within 6 months or stops for 6 months. Work counts as active only with an approved inspection inside 180 days.
A Notice of Commencement must be recorded and posted before the first inspection on larger contracts. Per the permit card, you could end up paying for the work twice if you leave this step out.
Florida code
The 25 percent rule on a 1989-era roof
Repair, replace or recover more than 25 percent of a roof section in any 12-month period, and the whole roof section must be redone to current code. A patch job on an older roof can cross that line fast.
Roofs built or re-covered under the 2007 Florida Building Code or a newer edition may qualify for a waiver. Only the new portion must then meet current code, and a county cannot change that by ordinance. A roof from the 1989 era would not qualify on its own age.
Questions
Roof replacement in Port St. John: questions
What is the 25% roof rule in Florida?
Florida's code says not more than 25 percent of a roof section may be repaired, replaced or recovered in any 12-month period unless the whole section is replaced or recovered. A roof built or redone to the 2007 code or later gets an exception. With a Port St. John median build year of 1989, many roofs here will not have that history. Ask Brevard County Planning & Development for your roof's permit record.
Source: 2023 Florida Building Code, Building, 8th ed., Chapter 15 (UpCodes viewer, unofficial transcription), read Oct 5, 2026
What is the new law in Florida about roofs?
The Ninth (2026) Edition of the Florida Building Code becomes effective December 31, 2026, and plans submitted on or after that date must follow it. Before that, the Eighth Edition, in effect since December 31, 2023, governs. Brevard County issues the permit for Port St. John, so ask the county which edition your application falls under.
Source: FRSA, "New 2023 FBC Eighth Edition is Now in Effect", 2024-02-13, read Oct 5, 2026
Do I need a permit to replace my roof in Port St. John?
Plan on one. Port St. John has no city government of its own, and Brevard County Planning & Development, Building Permits, handles roof permits there. A West Melbourne notice says Florida's 2026 HB 803 still requires a roof permit regardless of value, but confirm your own case with the county building office before work begins.
Source: Brevard County Planning & Development, Building Permits, read Oct 5, 2026
How old is a typical roof in Port St. John?
The median home here was built in 1989, and only 1.9 percent of homes date from 2010 or later. By our arithmetic, a roof original to a 1989 home is now well past 30 years old. Many owners have replaced theirs since, so check your own roof's permit record rather than assuming.
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, table B25034, read Oct 5, 2026
Sources for this page(26)
- 1.Median year homes were built: 1989. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API. Read Oct 5, 2026.
- 2.Share of homes built 2010 or later: 1.9%. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API. Read Oct 5, 2026.
- 3.Share of homes built before 1980: 10.6%. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API. Read Oct 5, 2026.
- 4.U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, table B25035. Read Oct 5, 2026.
- 5.U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, table B25034. Read Oct 5, 2026.
- 6.U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, tables B25034/B25035. Read Oct 5, 2026.
- 7.Owner-occupied share of occupied homes: 94.3%. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API. Read Oct 5, 2026.
- 8.Single-family detached share of housing units: 92.9%. U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API. Read Oct 5, 2026.
- 9.Permit office: Brevard County Planning & Development, Building Permits. Brevard County Planning & Development, Building Permits. Read Oct 10, 2026.
- 10.Brevard County, Building Code Wind Speed Maps. Read Oct 5, 2026.
- 11.City of West Melbourne, Building Department. Read Oct 5, 2026.
- 12.Citizens Property Insurance Corporation, inspections FAQ (updated 2026-03-17). Read Oct 4, 2026.
- 13.2023 Florida Building Code, Building, 8th ed., Chapter 1 (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 C-3 (the research cites it "as C-3").
- 14.2023 Florida Building Code, Building, 8th ed., Chapter 15 (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).
- 15.Florida Statutes, section 553.844 (2026). Read Oct 5, 2026.
- 16.FRSA, "New 2023 FBC Eighth Edition is Now in Effect", 2024-02-13. Read Oct 5, 2026.
- 17.Miami-Dade County RER notice. Read Oct 5, 2026.
- 18.Brevard County Planning & Development, Building Permits, Brevard County Planning & Development. Read Oct 5, 2026.
- 19.Florida Statutes, section 713.135 (2026), Florida Legislature. Read Oct 5, 2026.
- 20.U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates (acs2024_5yr), via Census Reporter API, table B25024, U.S. Census Bureau (via Census Reporter). Read Oct 5, 2026.
- 21.Florida Statutes, section 489.113 (2026), Florida Legislature. Read Oct 5, 2026.
- 22.NWS Melbourne, Post Tropical Cyclone Report: Hurricane Irma (2017), National Weather Service. Read Oct 5, 2026.
- 23.NWS Melbourne, Post Tropical Cyclone Report: Hurricane Matthew (2016), National Weather Service. Read Oct 5, 2026.
- 24.NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Port St. John 2020 Census internal point (28.4757, -80.8104), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 25.NOAA Atlas 14 Volume 9 version 2, partial-duration 24-hour depth estimates at the Port St. John 2020 Census internal point (28.4757, -80.8104), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 26.NOAA NCEI, U.S. Climate Normals 1991-2020 (annual/seasonal), access-data API, NOAA National Centers for Environmental Information. Read Oct 5, 2026.
South Fork Roofing
Roof replacement in Port St. John
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