Commercial roofs · Dunedin

Commercial roofing in Dunedin, FL

In Dunedin, 28.6 percent of homes sit in buildings with five or more units, so many roofing decisions involve a condo board, an association or a building owner rather than one homeowner. If you manage one of these properties, the bid you pick should show how the roof will drain, what wind rules apply and who issues the permit.

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Updated October 2026

Wooden fishing pier with railings stretching over calm water toward palm trees and shoreline buildings. — Photo: Dunedin,Florida. waterfront wooden pier by Roman Eugeniusz, CC BY-SA 3.0, cropped

A low-slope roof section with a granulated cap sheet in the foreground meeting a gray shingle slope, neighboring homes and a cloudy sky behind. — Photo: Dunedin,Florida. waterfront wooden pier by Roman Eugeniusz, CC BY-SA 3.0, cropped

Permits and offices

Who permits a commercial roof in Dunedin

Pinellas County splits permitting across many offices, so the office that signs off on a Dunedin roof depends on the exact address. Dunedin's city building department has its own listing, but it could not be fully checked, so confirm with the building office before you sign a contract.

Work on a commercial roof also has to start within the permit clock. Under the Florida Building Code, a permit becomes invalid if work does not begin within 6 months of issue, or if work stops for 6 months. Ask your contractor to track those dates on the job schedule.

Drainage and bids

Low-slope drainage and what to compare in a bid

Low-slope roofs in a wet place depend on drainage. Florida's minimum design slope for new built-up, modified bitumen, single-ply and liquid-applied low-slope roofs is one-fourth unit in 12, about 2 percent. Ask each bidder whether the new design achieves positive drainage within 48 hours of rain, and whether they will check for ponding.

Confirm the membrane standard named in the bid, such as ASTM D4637 for EPDM or ASTM D6878 for TPO.
Ask how the edges are secured and whether the edge metal is tested under ANSI/SPRI ES-1.
Ask whether overflow drains or scuppers are included where water could be trapped.
Ask who will tell the owner about any ponding risk before work starts.

Age and rain

Older buildings, rain and the 25 percent rule

Dunedin's housing is older than the Florida average, with a median build year of 1977 across the county. That suggests many commercial and multi-unit roofs may be well past their first decades, so check the deck and the old covering before choosing a recover or a full tear-off.

Under the 25 percent rule, no more than 25 percent of a roof can be repaired or replaced in any 12-month period unless the entire roof system is replaced. Your bid should state which approach it assumes, because a partial job can trigger full-roof requirements.

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Questions

Commercial roofing in Dunedin: questions

Do I need a special permit for a commercial roof in Dunedin?

Yes, a permit is needed for roofing work, and the office that issues it depends on your address within Pinellas County. Dunedin's permit information is posted by the City, but that page could not be checked in full here, so call the building office to confirm the office, the forms and the fees. Ask your contractor who will pull the permit and when the first inspection will take place. Pinellas County Building Services issues permits for many nearby cities, so confirm which office has your property before filing.

Source: City of Dunedin - Building Codes, Permits & Construction, read Oct 5, 2026

Related: Commercial roofing

Does a Dunedin roof need to meet the High-Velocity Hurricane Zone rules?

Pinellas County is outside that zone, so the separate HVHZ roofing permit and inspection rules do not apply to a Dunedin building. The zone is limited to Broward and Miami-Dade counties. Ask the building office which wind and product standards apply to your specific building.

Source: FBC-Building 2023 Chapter 2 definitions, read Oct 5, 2026

Related: Commercial roofing

What is the 25% roof rule in Florida?

The rule limits repairs or replacements to 25 percent of a roof area in any 12-month period unless the whole roof system is replaced. A roof that was built, repaired or replaced to the 2007 Florida Building Code or any later edition gets an exception: only the repaired section must meet current code. For a Dunedin property, ask your contractor how the 25 percent count will be tracked on your building.

Source: 2023 Florida Building Code, Building, 8th ed., Chapter 15 (UpCodes viewer, unofficial transcription), read Oct 5, 2026

Related: Commercial roofing

How do I check whether a roofing product is approved for wind protection?

Florida's Building Commission keeps a public product approval search. You can look up a product by its FL number, by manufacturer, or by code version from 2001 through 2023. A product may not be sold as wind or impact protection unless it has approval under Florida Statute 553.842. Ask the bidder for the approval number and check it yourself.

Source: Florida Statutes, section 553.842 (2026), read Oct 5, 2026

Related: Commercial roofing

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