Commercial roofs ยท Palm Beach County
Commercial roofing in Palm Beach County, FL
A quarter of Palm Beach County's homes, 25.1%, are in buildings with 10 or more units, so many households here share a condo or apartment roof. Florida now puts the roof first in a condo building's structural reserve study, and low-slope roofs face drainage and wind rules of their own.
Updated October 2026
Commercial roofing in Palm Beach County, in short
Low-slope roofs here follow the Florida Building Code's regular chapters, not the HVHZ chapter used in Broward and Miami-Dade. A new low-slope roof needs at least a quarter inch of slope per foot, edges tested for wind uplift and drainage that clears within 48 hours. Condo buildings three habitable stories or taller need a reserve study, roof first, every 10 years.
Associations
Condo roofs and the reserve study law
Florida Statute 718.112(2)(g) requires a residential condominium association to complete a structural integrity reserve study at least every 10 years for each building three habitable stories or higher. The roof is the first item on the list. Its findings come from a visual inspection, and it estimates the remaining useful life of each item, roof included.
That law touches a lot of roofs in this county, where 25.1% of homes are in buildings with 10 or more units. New ones keep coming, too: Census permit data show 1,503 units in 67 buildings of five or more units permitted in 2025.
Code zone
Wind rules north of the HVHZ
Palm Beach County sits outside the High-Velocity Hurricane Zone, so commercial roofs here skip the HVHZ chapter's separate permit forms and tests. They still answer to Chapter 16 wind loads: decks and coverings must be designed for them, and metal edge systems on built-up, modified bitumen and single-ply roofs must be tested to ANSI/SPRI ES-1 or RAS 111 (FBC-B 1504.5). Roofing products need Florida's statewide product approval (Fla. Stat. 553.842).
Membranes carry their own standards inside FBC-B Section 1507.12: EPDM to ASTM D4637 and TPO to ASTM D6878.
Drainage
Ponding on a roof that sees 61 inches a year
West Palm Beach averages 61.75 inches of rain a year, and 67.3% of it falls May through October. New low-slope roofs need a design slope of at least a quarter inch per foot, and the code's test for positive drainage is a roof that drains within 48 hours of rain. The NRCA uses the same 48-hour mark for ponding.
The plumbing code sizes storm drainage on the 100-year hourly rainfall rate from its own map or approved local data; for reference, NOAA Atlas 14 puts that storm at 5.24 inches an hour at West Palm Beach. Where parapets could trap water, secondary overflow drains or scuppers are required (FBC-B 1503.4.1).
Options
Recover, coat or strip to the deck
The code decides some of this for you. A recover is barred, and a tear-off to the deck required, when the existing roof is water-soaked or too deteriorated to serve as a base, already has two or more roof coverings, or has blisters that are not cut and secured. Moisture surveys can map wet areas, but infrared and gauge readings need core cuts to confirm them.
Two more checks: the 25% limit on repairs in 12 months for roofs built before the 2007 code, and rooftop equipment, which a local government may only make you bring up to code during a re-roof when the unit is being replaced or moved and is not compliant (FBC-B 102.8). Your permit comes from the county Building Division or the city where the building sits.
Commercial roofs
Commercial roofing by town in Palm Beach County
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Questions
Commercial roofing in Palm Beach County: questions
Does my Palm Beach County condo building need a roof reserve study?
If it is a residential condominium three habitable stories or taller, yes. Florida law requires the association to complete a structural integrity reserve study for each such building at least every 10 years, and the roof is the first item it covers. With 25.1% of the county's homes in buildings of 10 or more units, many associations here fall under it. The study is based on a visual inspection and states each item's estimated remaining useful life.
Source: Fla. Stat. 718.112, Oct 2026.
Do commercial roofs in Palm Beach County need Miami-Dade NOA products?
Not because of where the building sits. The High-Velocity Hurricane Zone, where the NOA-based permit forms apply, covers only Miami-Dade and Broward, and Palm Beach County is outside it. Roofing here needs Florida statewide product approval instead, which anyone can look up by FL number on the Florida Building Commission's product approval search. An owner, lender or designer may still specify a product that also holds a Miami-Dade NOA.
Source: Fla. Stat. 553.842, Oct 2026.
How fast should a flat roof drain after rain?
Within 48 hours. The Florida Building Code defines positive roof drainage as slope designed so the roof drains within 48 hours of rain, and the NRCA applies the same 48-hour test to ponding. In Palm Beach County, where August alone averages 8.68 inches at the West Palm Beach airport, water that sits longer is still there when the next storm arrives.
Source: FBC-B Chapter 15, Oct 2026.
Can a new commercial roof go over the old one?
Sometimes. The code allows a recover only over a sound, dry base: it is barred when the existing roof is water-soaked or deteriorated, already carries two or more roof coverings, or has blisters that are not cut and secured. A complete standing-seam metal system that carries its own loads to the structure is an exception. In Palm Beach County, the permit from the county Building Division or your city names which path the job takes.
Source: FBC-B Chapter 15, Oct 2026.
Palm Beach County
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Sources for this page(31)
- 1.Share of homes in buildings with 10+ units: 25.1%. U.S. Census Bureau, American Community Survey 2024 5-year estimates (2020-2024), table B25024, via Census Reporter API. Read Oct 5, 2026.
- 2.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.
- 3.U.S. Census Bureau, Building Permits Survey county annual files (co2025a.txt, co2020a.txt). Read Oct 5, 2026.
- 4.New residential building permits, 2025 (county total): 2,495 single-family units; 230 units in 2-4 unit buildings; 1,503 units in 67 buildings with 5+ units. U.S. Census Bureau, Building Permits Survey, county annual file co2025a.txt (estimates with imputation). Read Oct 5, 2026.
- 5.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service). Read Oct 5, 2026.
- 6.NOAA NCEI U.S. Climate Normals 1991-2020 (access data service). Read Oct 5, 2026.
- 7.Permit office: Palm Beach County Planning, Zoning & Building - Building Division. Palm Beach County Planning, Zoning & Building - Building Division. Read Oct 5, 2026.
- 8.Florida Statutes, section 718.112 (2026). Read Oct 5, 2026.
- 9.FBC-Building 2023 Chapter 2 definitions. Read Oct 5, 2026. FBC text read from UpCodes (unofficial transcription): check floridabuilding.org or the ICC viewer before quoting (spec 8.7).
- 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.Florida Statutes, section 553.842 (2026). Read Oct 5, 2026.
- 12.FBC-B 2023 Ch. 15. 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").
- 13.Florida Roofing and Sheet Metal Contractors Association (FRSA). Read Oct 5, 2026.
- 14.2023 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). Source URL inherited from COM-20 (the research cites it "as COM-20").
- 15.Professional Roofing magazine (NRCA). Read Oct 5, 2026.
- 16.2023 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").
- 17.2023 Florida Building Code, Residential, 8th ed., Chapter 9 (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).
- 18.Florida Building Commission. Read Oct 5, 2026.
- 19.NOAA Atlas 14 Volume 9 (Southeastern States) v2, partial-duration series, West Palm Beach (26.71, -80.05), NOAA National Weather Service, Hydrometeorological Design Studies Center. Read Oct 5, 2026.
- 20.National Roofing Contractors Association, National Roofing Contractors Association. Read Oct 5, 2026.
- 21.FBCR Ch. 9, International Code Council (Florida Building Commission). Read Oct 4, 2026.
- 22.Florida Statutes, section 627.7011 (2026), Florida Legislature. Read Oct 4, 2026.
- 23.FBC-B 2023 Ch. 1, International Code Council (Florida Building Commission). Read Oct 5, 2026.
- 24.FBCR 2023 Ch. 9, International Code Council (Florida Building Commission). Read Oct 4, 2026.
- 25.OIR form, Florida Office of Insurance Regulation. Read Oct 4, 2026.
- 26.FBCR Ch. 2, International Code Council (Florida Building Commission). Read Oct 5, 2026.
- 27.NOAA Atlas 14 Volume 9 v2, 5-minute 10-year rates at ten Florida points (8.71 in/hr Orlando to 11.3 in/hr West Palm Beach), NOAA National Weather Service, Hydrometeorological Design Studies Center. Read Oct 5, 2026. Ten points pulled 2026-10-05 through the PFDS endpoint.
- 28.NWS Miami, 'Palm Beach Gardens EF-2 Tornado - April 29th, 2023' StoryMap, NOAA / National Weather Service. Read Oct 5, 2026.
- 29.Palm Beach County PZB - Building Division home page, Palm Beach County. Read Oct 5, 2026.
- 30.NOAA National Hurricane Center, Tropical Cyclone Climatology, NOAA / National Weather Service. Read Oct 5, 2026.
- 31.NWS Miami, Weather Safety - Lightning, NOAA / National Weather Service. Read Oct 5, 2026.
South Fork Roofing
Commercial roofing in Palm Beach County
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