Re-roofs ยท Bay Harbor Islands
Roof replacement in Bay Harbor Islands, FL
The median home in Bay Harbor Islands was built in 1970, so many roofs here are likely past their first decades. Most of the housing stock predates the 1980s. That age shapes what a roof replacement involves, from the permit to the inspections. A few of the rules that matter most for an island town on Biscayne Bay come next.
Updated October 2026
Our workBay Harbor Islands figures this page uses
- Share of homes built before 1980
- 70.9%
- Single-family detached share of housing units
- 13%
- Median year homes were built
- 1970
Housing age
Why the 1970 build year matters for a roof on these islands
Seventy point nine percent of housing units here were built before 1980. The county figure for the same period is 49.6 percent. That gap suggests original roofs are more common in Bay Harbor Islands than across Miami-Dade as a whole.
Only 13 percent of the housing here is single-family detached. Seventy-seven point four percent of units sit in buildings with 10 or more units. Only 13 percent are detached single-family homes. Many roof decisions here belong to an association or a building owner, not to one household.
Permit and review
Town permit steps and the HVHZ paperwork for a roof here
Roof work here runs through the Town of Bay Harbor Islands permitting process. Confirm the current application steps with the building office before work starts.
A full re-roof has to follow the high velocity hurricane zone rules that Miami-Dade falls under. Those rules require an HVHZ Uniform Roofing Permit Application completed by a licensed contractor, plus product approval paperwork. Permits also expire. Your permit expires if work has not started within 6 months of its issue date.
The Notice of Commencement needs to be recorded and displayed at the site before anyone schedules the first inspection. Overlooking this step could leave you covering the cost of the same job a second time.
Storms and rain
Storm surge and hurricane season for island roofs
Hurricane Irma in 2017 pushed surge 4 to 6 feet above ground along Biscayne Bay in Miami-Dade. An island town on the bay has the same exposure. Older roofs with worn deck fasteners are the ones most likely to show damage after a storm like that.
Atlantic hurricane season runs June 1 through November 30, with the peak around September 10. Schedule roof replacement outside that stretch when you can.
Questions
Roof replacement in Bay Harbor Islands: questions
Do you need a permit for a new roof in Bay Harbor Islands?
Yes. Roof work in Miami-Dade falls under the high velocity hurricane zone rules, and the Town of Bay Harbor Islands handles the local permit. A permit must be pulled before work starts, and the application must be completed by a licensed contractor. Confirm current steps with the building office, because permits can expire if work does not begin within 6 months.
Source: Florida Building Commission, 'Setting New Standards for Safety: The Florida Building Code' (2004 publication; wind-speed figures in it are outdated and not used), read Oct 5, 2026
What is the 25% rule for roofing in Florida?
The 25% rule says no more than 25 percent of an existing roof may be repaired, replaced or recovered in any 12-month period unless the whole roof is redone. When the current roof dates to the 2007 Florida Building Code or newer, just the section being fixed has to satisfy present code requirements. Bay Harbor Islands owners should check that exception with the building office before planning partial work.
Source: 2023 Florida Building Code, Building, 8th ed., Chapter 15 (UpCodes viewer, unofficial transcription), read Oct 5, 2026
How old are most homes in Bay Harbor Islands?
The median home was built in 1970, with a margin of error of 4 years. Seventy point nine percent of housing units were built before 1980, compared with 49.6 percent across Miami-Dade County. Many of these roofs are likely past 25 years, so an inspection is worth considering.
Source: U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25034, via Census Reporter API, read Oct 5, 2026
Sources for this page(24)
- 1.Share of homes built before 1980: 70.9%. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25034, via Census Reporter API. Read Oct 5, 2026.
- 2.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25034, via Census Reporter API. Read Oct 5, 2026.
- 3.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, B25034, B25024, via Census Reporter API. Read Oct 5, 2026.
- 4.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
- 5.U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25024, via Census Reporter API. Read Oct 5, 2026.
- 6.Single-family detached share of housing units: 13%. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25024, via Census Reporter API. Read Oct 5, 2026.
- 7.Permit office: Town of Bay Harbor Islands - Apply for a Construction Related Permit. Town of Bay Harbor Islands - Apply for a Construction Related Permit. Read Oct 10, 2026.
- 8.Florida Building Commission, 'Setting New Standards for Safety: The Florida Building Code' (2004 publication; wind-speed figures in it are outdated and not used). Read Oct 5, 2026.
- 9.Hurricane Irma (2017). NOAA National Hurricane Center, Tropical Cyclone Report: Hurricane Irma (AL112017). Read Oct 5, 2026.
- 10.Wikipedia, 'Bay Harbor Islands, Florida' (revision 1373541642). Read Oct 5, 2026.
- 11.Median year homes were built: 1970. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25035, via Census Reporter API. Read Oct 5, 2026.
- 12.2023 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).
- 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.NOAA NHC. Read Oct 5, 2026.
- 15.Florida Statutes, section 553.844 (2026). Read Oct 5, 2026.
- 16.Town of Bay Harbor Islands - Apply for a Construction Related Permit, Town of Bay Harbor Islands. Read Oct 5, 2026.
- 17.Florida Statutes, section 713.135 (2026), Florida Legislature. Read Oct 5, 2026.
- 18.NOAA National Hurricane Center, Tropical Cyclone Report: Hurricane Irma (AL112017), NOAA National Hurricane Center. Read Oct 5, 2026.
- 19.Citizens Property Insurance Corporation, inspections FAQ (updated 2026-03-17), Citizens Property Insurance. Read Oct 4, 2026.
- 20.NOAA National Hurricane Center, Tropical Cyclone Climatology, NOAA National Hurricane Center. Read Oct 5, 2026.
- 21.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service), NOAA National Centers for Environmental Information. Read Oct 5, 2026.
- 22.NOAA Atlas 14 Volume 9 version 2, partial-duration intensity estimates at the Bay Harbor Islands 2020 Census internal point (25.8880, -80.1336), NOAA Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 23.Wikipedia, 'List of municipalities in Florida', Wikipedia. Read Oct 5, 2026.
- 24.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service), NOAA National Centers for Environmental Information. Read Oct 5, 2026.
South Fork Roofing
Roof replacement in Bay Harbor Islands
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