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Commercial roofs · Miami

Commercial roofing in Miami, FL

Miami's skyline holds more than 300 high-rises, and 55.3% of the city's homes sit in buildings of 10 or more units. Commercial roofing in Miami therefore means low-slope roofs run by boards and building owners, answering to recertification deadlines and the HVHZ provisions South Florida adopted after Hurricane Andrew.

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Updated October 2026

A flat roof covered in a gray granulated cap sheet, with rooftop units and vents in the distance and tree shadows across the surface.

Miami figures this page uses

Share of homes in buildings with 10+ units
55.3%
Owner-occupied share of occupied homes
30.8%
Housing units (ACS 5-year)
223,826

Local know-how

Towers, boards and the 30-year clock

Miami-Dade has required building recertification since 1975, amended on June 1, 2022: a building is recertified at 30 years old and every 10 years after. That same year, state law added milestone inspections for condominium and cooperative buildings three stories and taller. The 2022 changes came the year after the June 24, 2021 building collapse in Surfside, which drew FEMA declaration EM-3560.

Condominium associations carry a third clock. A structural integrity reserve study is due at least every 10 years for each building three habitable stories or higher, and the roof is the first item it must cover, with an estimated remaining useful life (Fla. Stat. 718.112(2)(g)). For a Miami board, the roof's age, condition and replacement year end up in writing whether or not a leak forces the issue.

Only 30.8% of Miami's occupied homes are owner-occupied, so many roof decisions here are made by landlords, managers and boards rather than the people living under them.

HVHZ code

Membranes and drainage under the HVHZ sections

The zone's low-slope rules are specific. Loose-laid ballasted systems are not permitted (FBC-B 1515.1.5), and new decks need at least a 1/4:12 slope. A roof must drain within 48 hours of rain, counting deck deflection. Where parapets would trap water if the main drains back up, secondary overflow drains or scuppers are required (FBC-B 1503.4.1).

Re-covering has hard limits. A new membrane cannot go over a roof that is water-soaked or deteriorated, over two or more existing roofs, or over sheathing not fastened to code (1521.5). Before work starts, the contractor must tell the owner if ponding is possible and recommend a structural review (1521.13). Existing rooftop equipment only has to be brought to code when it is replaced or moved during the re-roof and does not comply (FBC-B 102.8).

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Questions

Commercial roofing in Miami: questions

When does a Miami building face recertification?

At 30 years old, then every 10 years after. Miami-Dade's recertification program dates to 1975 and was amended on June 1, 2022, and a 2022 state law layered milestone inspections on condominium and cooperative buildings three stories and taller. The county's Recertification page has the current requirements and forms. Roof work finished ahead of a deadline is easier to document than work rushed under one.

Source: miamidade.gov Recertification.

Related: Commercial roofing

Can a new membrane go over the old roof on a Miami building?

Only if the old roof qualifies as a base. The code bars a recover where the existing roof is water-soaked or deteriorated, where there are already two or more roof coverings, or where blisters have not been cut and secured. In the HVHZ, FBC-B 1521.5 also forbids a new system over sheathing that is wet, decayed or not fastened to the current code. Infrared surveys flag likely wet areas, but they need core cuts to confirm; on a roof that sees 67.41 inches of rain a year, that check belongs before the bid.

Source: FBC-B Chapter 15 (2023).

What does a Miami condo association owe on its roof?

A written look at it at least every 10 years. Florida requires a structural integrity reserve study for each condominium building three habitable stories or higher, and the roof is the first item listed. Its findings come from a visual inspection, and it puts a remaining-life estimate on the roof and every other item. Miami has more than 300 high-rises, so the rule touches a large share of the city's roofs.

Source: Fla. Stat. 718.112(2)(g).

Related: Commercial roofing

Sources for this page(21)
  1. 1.Miami-Dade County, Recertification. Read Oct 5, 2026.
  2. 2.Wikipedia, 'Miami' (revision 1376685952). Read Oct 5, 2026.
  3. 3.Miami-Dade County RER, Board and Code Administration Division, Product Approval. Read Oct 5, 2026.
  4. 4.Share of homes in buildings with 10+ units: 55.3%. 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.Owner-occupied share of occupied homes: 30.8% (60,068 of 194,821). U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25003, via Census Reporter API. Read Oct 5, 2026.
  6. 6.Housing units (ACS 5-year): 223,826. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25001, via Census Reporter API. Read Oct 5, 2026.
  7. 7.OpenFEMA DisasterDeclarationsSummaries v2. Read Oct 5, 2026.
  8. 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. 9.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service). Read Oct 5, 2026.
  10. 10.2023 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). Source URL inherited from C-14 (the research cites it "as C-14").
  11. 11.2023 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).
  12. 12.2023 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").
  13. 13.Florida Statutes, section 718.112 (2026). Read Oct 5, 2026.
  14. 14.Professional Roofing magazine (NRCA). Read Oct 5, 2026.
  15. 15.City of Miami, Building Department, City of Miami. Read Oct 5, 2026.
  16. 16.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service). Read Oct 5, 2026.
  17. 17.NWS Miami, Weather Safety - Lightning. Read Oct 5, 2026.
  18. 18.Citizens Property Insurance Corporation. Read Oct 4, 2026.
  19. 19.Insp4pt 03 25. Read Oct 4, 2026.
  20. 20.miamidade.gov. Read Oct 5, 2026.
  21. 21.Florida Building Commission. Read Oct 5, 2026.

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Commercial roofing in Miami

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