Permitting Authorities / Volusia County - Building and Code Administration Division

Do you need a permit to replace a roof in Unincorporated Volusia County, FL?

Adopted code

Volusia County - Building and Code Administration Division

Yes, a permit is required to replace a roof in Unincorporated Volusia County, FL, issued by Volusia County - Building and Code Administration Division. Volusia County treats re-roofing as permit work. Its building permit fee resolution (Exhibit A, revised October 1, 2025) carries a dedicated "Roofing permits (minimum)" fee of $134.71, and its Minor Permit Application lists "Re-Roof" among the kinds of work proposed. Applications are filed through the county's Connect Live portal; the county's Step 2 Building Permit Application asks for the roof type (shingle, metal, tile or other), whether it is a minor repair, whether the new roof goes over the existing one, the number of layers, and the slope and number of squares, and marks metal, tile and other roofs "*Requires Licensed Roofer, except Owner/Builder". The applicant must list all major subcontractors, including the roofing contractor, with each one's certification or registration number. Under the county's administrative code (Volusia County Code Sec. 22-2), plan review is not required for "Reroofs", and "every employer shall, as a condition to receiving a building permit, show proof that it has secured compensation for its employees"; "Participation in Volusia County's Licensing Program satisfies this requirement." A notice of commencement must be recorded and posted on the job site before the first inspection. The county's FAQ answers "What happens if I choose not to obtain the required permits?": "Code Compliance will issue an advisory notice. Once a permit is obtained, the cost will be double for an After the Fact permit." Since July 1, 2026 a state statute (Section 553.79(1)(g), Florida Statutes) lets the owner of a single-family home, or the owner's contractor, request a written exemption for work valued at less than $7,500 that is not structural, electrical, plumbing, mechanical or gas work and is not on property in a flood hazard area; Volusia County requires a "Minor Residential Work Permit Exemption Request" before work begins and states: "Submitting an application does not guarantee exemption. If Building and Code Administration determines the proposed work does not meet the exemption criteria, a standard building permit will be required before work may begin." The county has published no statement on whether roof work qualifies, and this record does not decide it.

Roof code checklist: Unincorporated Volusia County, FL

ItemAnswerCode citeSourceVerified
Permit to replace a roofYesFee-Schedule-2025-2026.pdf2026-09-26
Repair permit thresholdPublishedlibrary.municode.com2026-09-26
Layer limit / roof-overPublishedR908.3codes.iccsafe.org2026-09-26
Deck & sheathingPublishedcodes.iccsafe.org2026-09-26
Drip edgeYesR905.2.8.5codes.iccsafe.org2026-09-26
Ice & water shieldNoR905.1.2codes.iccsafe.org2026-09-26
Mid-roof inspectionYesSec. 110.3library.municode.com2026-09-26
Impact-resistant (Class 4) roofingNolibrary.municode.com2026-09-26
Wind design criteriaPublishedR905.2.6.1library.municode.com2026-09-26
Adopted codePublishedSec. 1612.4.2library.municode.com2026-09-26
Contractor license / registrationYeslibrary.municode.com2026-09-26
Sales & use taxPublisheddr15dss_26.pdf2026-09-26

Each row comes from the sourced record on this page; full wording is in the table below. "Not published" means no official source for that item was found when the record was last verified.

Jurisdiction
Volusia County, Florida (unincorporated)
Jurisdiction type
county
Address
123 W. Indiana Ave., Room 203 (Thomas C. Kelly Administration Center), DeLand, FL 32720
Contact
  • url: https://www.volusia.org/services/growth-and-resource-management/building-and-zoning/permit-and-zoning-center/
  • phone: 386-736-5929
  • email: [email protected]
Permit portal
Roofing permit required
Required
Contractor registration required
Required
Registration details
  • state_level: Roofing is its own licensed trade in Florida. Section 489.113(2), Florida Statutes: "A person must be certified or registered in order to engage in the business of contracting in this state." Section 489.105(3)(e) defines a "Roofing contractor" as one whose services are unlimited in the roofing trade and who can "install, maintain, repair, alter, extend, or design" all kinds of roofing. A state-certified contractor may work statewide; a state-registered contractor may work only where he or she holds the local competency licence (Section 489.117(1)(b): "Registration allows the registrant to engage in contracting only in the counties, municipalities, or development districts where he or she has complied with all local licensing requirements, if any, and only for the type of work covered by the registration."). Verify a licence on the Department of Business and Professional Regulation licence search.
  • county_level: Volusia County Code Sec. 22-113: "All contractors must hold a valid certificate of competency or be state certified in order to engage in their occupation." The county stopped issuing its own competency certificates for construction contractors in 1981 (Sec. 22-112(a)); under Sec. 22-112(b), roofing contractors who held a county occupational license for 1979-1980 and were state-registered "were allowed to continue to pursue their trade for so long as they maintained their state registration." State-licensed contractors join the county's Contractor Listing program by submitting the Contractor Listing Application with a copy of the current state licence, certificates of general liability and workers' compensation insurance (or a workers' compensation exemption) naming "County of Volusia - Contractor Licensing - 123 W. Indiana Av., DeLand, FL 32720" as certificate holder, and a copy of the licence holder's identification. The county's fee resolution lists a Roofing Contractor Registered Listing Fee of $45.00 and a biennial renewal of $150.00, and states: "No building permits will be issued until insurance requirements are satisfied." Sec. 22-86: "No competency card, listing card or building permit will be issued until the applicant presents a certificate of insurance." The listing also covers the cities of Daytona Beach, Daytona Beach Shores, DeLand, Deltona, Edgewater, Holly Hill, Lake Helen, New Smyrna Beach, Oak Hill, Orange City, Ormond Beach, Ponce Inlet, Port Orange and South Daytona, which participate by interlocal agreement. The permit applicant must list every major subcontractor, including the roofing contractor, with his or her certification or registration number.
  • owner_builder: Section 489.103(7)(a), Florida Statutes, exempts owners "when acting as their own contractor and providing direct, onsite supervision themselves of all work not performed by licensed contractors" when building or improving one-family or two-family residences for their own use and occupancy. The county's Building FAQ answers "Do I need a contractor?": "Not if you own and occupy the house. State statutes (489.103(7) allow the owners of real property to act as their own contractor. This exemption may only be used if you own and occupy the home. As an owner builder though, if you do not complete all of the work yourself, you must supervise the work, and hire licensed trade subcontractors (electrician, plumbing, a/c, and roof) in accordance with state law. Owners acting as their own contractor or listed as a subcontractor are required to personally appear and sign the permit application per Florida Statute 489.103(7)." Volusia County Code Sec. 22-87 treats the construction of more than one residence by an owner builder within any 12-month period as contracting, but states that "Nothing contained in this section shall prohibit an owner builder from obtaining a building permit for or performing or supervising work in connection with, his own existing single-family residence more than once during any 12-month period." Owners sign the county's Owner Builder Disclosure Statement. Whether a particular owner qualifies is for the statute and the county to say, not this record.
Permit process note
Volusia County treats re-roofing as permit work. Its building permit fee resolution (Exhibit A, revised October 1, 2025) carries a dedicated "Roofing permits (minimum)" fee of $134.71, and its Minor Permit Application lists "Re-Roof" among the kinds of work proposed. Applications are filed through the county's Connect Live portal; the county's Step 2 Building Permit Application asks for the roof type (shingle, metal, tile or other), whether it is a minor repair, whether the new roof goes over the existing one, the number of layers, and the slope and number of squares, and marks metal, tile and other roofs "*Requires Licensed Roofer, except Owner/Builder". The applicant must list all major subcontractors, including the roofing contractor, with each one's certification or registration number. Under the county's administrative code (Volusia County Code Sec. 22-2), plan review is not required for "Reroofs", and "every employer shall, as a condition to receiving a building permit, show proof that it has secured compensation for its employees"; "Participation in Volusia County's Licensing Program satisfies this requirement." A notice of commencement must be recorded and posted on the job site before the first inspection. The county's FAQ answers "What happens if I choose not to obtain the required permits?": "Code Compliance will issue an advisory notice. Once a permit is obtained, the cost will be double for an After the Fact permit." Since July 1, 2026 a state statute (Section 553.79(1)(g), Florida Statutes) lets the owner of a single-family home, or the owner's contractor, request a written exemption for work valued at less than $7,500 that is not structural, electrical, plumbing, mechanical or gas work and is not on property in a flood hazard area; Volusia County requires a "Minor Residential Work Permit Exemption Request" before work begins and states: "Submitting an application does not guarantee exemption. If Building and Code Administration determines the proposed work does not meet the exemption criteria, a standard building permit will be required before work may begin." The county has published no statement on whether roof work qualifies, and this record does not decide it.
Adopted code
Florida Building Code, 8th Edition (2023), Residential (2021 IRC base), effective December 31, 2023, adopted statewide by Rule 61G20-1.001, Florida Administrative Code, with no local adoption needed. Volusia County's building chapter (Volusia County Code Chapter 22, Article I, codified through Ordinance No. 2026-07, June 2, 2026) contains the "Volusia County Administrative Section of the Florida Building Code" (Sec. 22-2, enacted by Ordinance No. 2005-14 and amended by Ordinance No. 2016-01, January 21, 2016, and by Ordinance No. 2023-44, December 5, 2023, which changed only its construction-hours provision), under which one- and two-family dwellings "shall comply with the Florida Building Code, Residential" and "Existing buildings undergoing repair, alterations or additions or change of occupancy shall comply with the provisions of the Florida Building Code, Existing Building." The county's Step 2 Building Permit Application calls for "Compliance with the current adopted Florida Building Code and Florida Fire Prevention Code". Sec. 22-4 (Ordinance No. 2019-8, April 16, 2019) adopts local technical amendments to the flood-resistant construction provisions (Residential Section R322 and Building Section 1612.4.2) and to the definition of "substantial improvement" in the Building and Existing Building volumes; none touches the roofing chapters. Sec. 22-3 fixes the location of the county's basic wind speed lines.
Drip edge
Required — Florida Building Code, Residential, 8th Edition (2023), Section R905.2.8.5: "Provide drip edge at eaves and gables of shingle roofs." Eave drip edges extend 1/2 inch below the sheathing and 2 inches back onto the roof and are installed over the underlayment. This applies to shingle roofs. Volusia County's technical amendments to the Florida Building Code (Volusia County Code Sec. 22-4) reach only flood-resistant construction and the definition of substantial improvement, not the roofing chapter, so the state text applies unchanged. The county's one- and two-family dwelling inspection checklist (revised July 2015) tells the roof underlayment inspector to "Check placement on flashing & drip edge." About drip edge
Ice & water shield
Not required — Florida Building Code, Residential, 8th Edition (2023): "R905.1.2 Ice barriers. Reserved." There is no ice-barrier requirement in the Florida code, and Volusia County's amendments (Volusia County Code Chapter 22, Article I, including the technical amendments in Sec. 22-4) do not touch the roofing chapter. Self-adhered underlayment is still used in Florida, but as a secondary water barrier or underlayment method, not as an ice barrier. About ice & water barrier
Mid-roof inspection
Required — Volusia County's own required-inspection list (Section 110.3 of its administrative code, Volusia County Code Sec. 22-2) defines the "Roofing inspection" as one that "Shall at a minimum include the following building components": "Sheathing nailing as appropriate", "Dry-in", "Insulation", "Roof coverings (including In Progress as necessary)" and "Flashing". Its sheathing inspection is "To be made either as part of a dry-in inspection or done separately at the request of the contractor after all roof and wall sheathing and fasteners are complete," and "Sheathing fasteners installed and found to be missing the structural member (shiners) shall be removed and properly reinstalled prior to installation of the dry-in material." Section 110.6: "Work shall not be done beyond the point indicated in each successive inspection without first obtaining the approval of the Chief Building Official." The county also takes a notarized Roof Deck Nailing, Underlayment and Flashing Roof Affidavit from a licensed general, building, residential or roofing contractor, engineer or architect who personally inspected the deck nailing and the underlayment and flashing, but "Affidavit from contractors will only be accepted when an in progress inspection has been scheduled the prior working day." Inspections are scheduled by the permit applicant through Connect Live.
Impact-resistant roofing
Not required — Volusia County's building chapter (Volusia County Code Chapter 22, Article I: its administrative code in Sec. 22-2, its wind speed lines in Sec. 22-3 and its technical amendments to the Florida Building Code in Sec. 22-4) contains no roof-covering rating provision, and no UL 2218 or Class 4 impact requirement appears in the Florida Building Code's residential roofing chapter, the Building volume's roofing chapter or the Existing Building volume's reroofing provisions, or in the county's amendments. Florida's shingle classifications (ASTM D3161, TAS 107, ASTM D7158) are wind ratings, not hail-impact ratings. An insurer's discount for an impact-rated roof is not a code requirement.
Repair permit threshold
No square-footage or dollar threshold of the county's own. Volusia County's permit exemptions (Section 105.2 of its administrative code, Volusia County Code Sec. 22-2) list no roof work, and its Section 105.2.2 provides: "Ordinary minor repairs or installation of replacement parts may be made with the prior approval of the Chief Building Official without a permit," excluding structural, egress, piping, wiring and mechanical work. The county's building permit applications have a "Minor Repair" checkbox in their roof section, and its fee resolution sets a minimum roofing permit fee. State law adds one dollar test. Section 553.79(1)(g), Florida Statutes (effective July 1, 2026): "A local government that issues building permits shall exempt an owner of a single-family dwelling or the owner's contractor from the requirement to obtain a building permit to perform any work valued at less than $7,500 on the owner's property." It does not apply to "Work on a property that is partially or entirely located in a flood hazard area as defined by the Florida Building Code" or to "Any electrical, plumbing, structural, mechanical, or gas work performed on property containing a single-family dwelling"; "A construction project may not be divided into more than one project for the purpose of evading the requirements of this paragraph"; and the owner or contractor "must submit a written request for exemption to the local enforcement agency with a copy of the contract or other documentation demonstrating the nature and the value of the work to be performed." The county's Permit Center describes it as an exemption "for certain residential repairs or improvements with a value of $7,500 or less" for work that "does not affect the structural integrity of the building and does not involve electrical, plumbing, or mechanical systems requiring a permit," and requires its Minor Residential Work Permit Exemption Request "for review prior to beginning work"; on that form the applicant attests that "The total value of the described work is less than $7,500." Neither the statute nor the county says whether roof work is "structural" work, and this record does not decide it; a full reroof is ordinarily valued above $7,500 in any case. Separately, the Florida Building Code, Existing Building (Section 706.1.1) limits partial work: "Not more than 25 percent of the total roof area or roof section of any existing building or structure shall be repaired, replaced or recovered in any 12-month period unless the roof covering on the entire existing roof system or roof section is replaced or recovered to conform to the requirements of this code," except that where the existing roof was built, repaired or replaced under the 2007 Florida Building Code or later, "only the repaired, replaced, or recovered portion is required to be constructed in accordance with the Florida Building Code in effect."
Wind design criteria
Volusia County Code Sec. 22-3, Basic wind speed lines (last amended by Ordinance No. 2016-01, January 21, 2016): "The basic wind speed lines for Risk Category 1 through Risk Category IV buildings are determined by the Florida Department of Community Affairs, Codes and Standards Division and Applied Research Associates, as published June 28, 2011 and as digital data available at the Florida Geographic Data Library. The exact location of these lines in Volusia County are hereby established using the data provided to the county by the Florida Geographic Data Library as geographic information system coordinates in decimal degrees, which were then plotted on a map of the county." The county code states no wind speed figure of its own. The Florida Building Code, Residential, 8th Edition (2023) gives the ultimate design wind speed in Figure R301.2(4)A; confirm the speed for the site on that map. Volusia County is not in the High-Velocity Hurricane Zone; the code states: "This zone consists of Broward and Miami-Dade counties." Asphalt shingles "shall be tested and classified in accordance with ASTM D3161, TAS 107 or ASTM D7158" (Section R905.2.6.1).
Roof layer limit / recover
Florida Building Code, Residential, 8th Edition (2023), Section R908.3: "New roof coverings shall not be installed without first removing all existing layers of roof coverings where any of the following conditions occur: ... 3. Where the existing roof has two or more applications of any type of roof covering." Tear-off is also required where the existing roof is water soaked or deteriorated, where it is wood shingle or shake, slate, clay, cement or asbestos-cement tile, where blisters are not cut open and secured, and where the existing covering cannot meet the code's securement provisions; the Existing Building volume (Section 706.3) repeats the same conditions. One re-cover over a single existing layer is therefore the most the code allows. Volusia County's building chapter (Volusia County Code Chapter 22, Article I, including its administrative code in Sec. 22-2 and its technical amendments in Sec. 22-4) does not touch the reroofing sections; the county's building permit application asks whether the new roof goes over the existing one and for the number of layers, but states no layer number of its own. Chapter 9: https://codes.iccsafe.org/content/FLRC2023P1/chapter-9-roof-assemblies
Deck & sheathing requirements
On a house not originally permitted under the Florida Building Code, a reroof triggers deck re-nailing and a secondary water barrier. Florida Building Code, Existing Building, 8th Edition (2023), Section 706.7: "When a roof covering on an existing structure with a sawn lumber, wood plank or wood structural panel roof deck is removed and replaced, the following procedures shall be permitted to be performed by the roofing contractor" (roof-decking attachment under Section 706.7.1 and a secondary water barrier under Section 706.7.2), with the exception: "Structures permitted subject to the Florida Building Code are not required to comply with this section." Sawn lumber or plank decking up to 12 inches wide "secured with at least two nails (minimum size 8d) to each roof framing member it crosses shall be deemed to be sufficiently connected"; wood structural panels follow the fastener provisions of Section 706.7.1.2. Section 706.7.2: "When a roof covering is removed and replaced, a secondary water barrier shall be installed." Volusia County checks the deck in the field: its roofing inspection covers "Sheathing nailing as appropriate", shiners must be pulled and reinstalled before dry-in, and its inspection checklist has the roof sheathing inspector "Check fastening method and check for shiners." Where the county accepts its Roof Deck Nailing, Underlayment and Flashing Roof Affidavit, the licensed contractor, engineer or architect attests that the installation "was done according to the currently adopted Florida Existing Building Code." Volusia County's amendments do not change the state deck provisions.
Sales & use tax
6.5% combined on materials: the 6% Florida state sales and use tax plus Volusia County's 0.5% discretionary sales surtax (effective January 1, 2002, with an expiration date of December 31, 2031, per the Florida Department of Revenue's Form DR-15DSS for calendar year 2026). The surtax applies only to the first $5,000 of the sales amount of any single item of tangible personal property (Department of Revenue discretionary sales surtax guidance). Florida treats roofing as a real property contract (Rule 12A-1.051, Florida Administrative Code, lists "(cc) Roofing work"): "Contractors are the ultimate consumers of materials and supplies they use to perform real property contracts and must pay tax on their costs of those materials and supplies, unless the contractor has entered a retail sale plus installation contract," and "They should charge no tax to their customers, regardless of whether they itemize charges for materials and labor in their proposals or invoices." Repairs and replacements are treated the same way.

The building department of Volusia County, Florida (DeLand and the Daytona Beach area), part of Growth and Resource Management. Its Permit Center receives and processes residential and commercial permit applications, including re-roof permits, and its Building Code Administration activity reviews plans and inspects construction for unincorporated Volusia County. The division's Contractor Licensing activity keeps a county-wide contractor database.

Hail reports near the center of Volusia County, FL

Reports, last 24 months
1
Largest, last 24 months
1.00 in May 24, 2025
Most recent
May 24, 2025 1.00 in
Reports, last 5 years
5
5 most recent reports, last 5 years
DateHail sizeDistance
May 24, 20251.00 in6 mi NW
May 18, 20231.00 in7 mi SW
Jun 6, 20221.00 in8 mi SSW
May 21, 20221.25 in9 mi SW
May 21, 20221.00 in8 mi W

Source: NOAA Storm Prediction Center severe weather database and daily storm reports (reports since the start of the current year are preliminary), within 10 miles of the center of Volusia County, FL. Data through Sep 30, 2026. A report is an observation, not a damage record.

Working an insurance claim in Unincorporated Volusia County, FL? Everything on this page (drip edge, ice & water shield, inspections, Class 4 rules) formatted as a claim-ready evidence pack: verbatim ordinance quotes, code section cites, verification dates, and official source links, ready to attach to a supplement. See a real sample pack (PDF, 4 pages, free).

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Sources

Roofing questions: Unincorporated Volusia County, FL

Do you need a permit to replace a roof in Unincorporated Volusia County, FL?

Yes, a permit is required to replace a roof in Unincorporated Volusia County, FL. No square-footage or dollar threshold of the county's own. Volusia County's permit exemptions (Section 105.2 of its administrative code, Volusia County Code Sec. 22-2) list no roof work, and its Section 105.2.2 provides: "Ordinary minor repairs or installation of replacement parts may be made with the prior approval of the Chief Building Official without a permit," excluding structural, egress, piping, wiring and mechanical work. The county's building permit applications have a "Minor Repair" checkbox in their roof section, and its fee resolution sets a minimum roofing permit fee. State law adds one dollar test. Section 553.79(1)(g), Florida Statutes (effective July 1, 2026): "A local government that issues building permits shall exempt an owner of a single-family dwelling or the owner's contractor from the requirement to obtain a building permit to perform any work valued at less than $7,500 on the owner's property." It does not apply to "Work on a property that is partially or entirely located in a flood hazard area as defined by the Florida Building Code" or to "Any electrical, plumbing, structural, mechanical, or gas work performed on property containing a single-family dwelling"; "A construction project may not be divided into more than one project for the purpose of evading the requirements of this paragraph"; and the owner or contractor "must submit a written request for exemption to the local enforcement agency with a copy of the contract or other documentation demonstrating the nature and the value of the work to be performed." The county's Permit Center describes it as an exemption "for certain residential repairs or improvements with a value of $7,500 or less" for work that "does not affect the structural integrity of the building and does not involve electrical, plumbing, or mechanical systems requiring a permit," and requires its Minor Residential Work Permit Exemption Request "for review prior to beginning work"; on that form the applicant attests that "The total value of the described work is less than $7,500." Neither the statute nor the county says whether roof work is "structural" work, and this record does not decide it; a full reroof is ordinarily valued above $7,500 in any case. Separately, the Florida Building Code, Existing Building (Section 706.1.1) limits partial work: "Not more than 25 percent of the total roof area or roof section of any existing building or structure shall be repaired, replaced or recovered in any 12-month period unless the roof covering on the entire existing roof system or roof section is replaced or recovered to conform to the requirements of this code," except that where the existing roof was built, repaired or replaced under the 2007 Florida Building Code or later, "only the repaired, replaced, or recovered portion is required to be constructed in accordance with the Florida Building Code in effect."

Is ice & water shield required in Unincorporated Volusia County, FL?

No. Florida Building Code, Residential, 8th Edition (2023): "R905.1.2 Ice barriers. Reserved." There is no ice-barrier requirement in the Florida code, and Volusia County's amendments (Volusia County Code Chapter 22, Article I, including the technical amendments in Sec. 22-4) do not touch the roofing chapter. Self-adhered underlayment is still used in Florida, but as a secondary water barrier or underlayment method, not as an ice barrier.

Is drip edge required in Unincorporated Volusia County, FL?

Yes. Florida Building Code, Residential, 8th Edition (2023), Section R905.2.8.5: "Provide drip edge at eaves and gables of shingle roofs." Eave drip edges extend 1/2 inch below the sheathing and 2 inches back onto the roof and are installed over the underlayment. This applies to shingle roofs. Volusia County's technical amendments to the Florida Building Code (Volusia County Code Sec. 22-4) reach only flood-resistant construction and the definition of substantial improvement, not the roofing chapter, so the state text applies unchanged. The county's one- and two-family dwelling inspection checklist (revised July 2015) tells the roof underlayment inspector to "Check placement on flashing & drip edge."

Can you roof over an existing roof in Unincorporated Volusia County, FL?

Florida Building Code, Residential, 8th Edition (2023), Section R908.3: "New roof coverings shall not be installed without first removing all existing layers of roof coverings where any of the following conditions occur: ... 3. Where the existing roof has two or more applications of any type of roof covering." Tear-off is also required where the existing roof is water soaked or deteriorated, where it is wood shingle or shake, slate, clay, cement or asbestos-cement tile, where blisters are not cut open and secured, and where the existing covering cannot meet the code's securement provisions; the Existing Building volume (Section 706.3) repeats the same conditions. One re-cover over a single existing layer is therefore the most the code allows. Volusia County's building chapter (Volusia County Code Chapter 22, Article I, including its administrative code in Sec. 22-2 and its technical amendments in Sec. 22-4) does not touch the reroofing sections; the county's building permit application asks whether the new roof goes over the existing one and for the number of layers, but states no layer number of its own. Chapter 9: https://codes.iccsafe.org/content/FLRC2023P1/chapter-9-roof-assemblies

Do roofing contractors need a license or registration in Unincorporated Volusia County, FL?

Yes.

What building code does Unincorporated Volusia County, FL use?

Florida Building Code, 8th Edition (2023), Residential (2021 IRC base), effective December 31, 2023, adopted statewide by Rule 61G20-1.001, Florida Administrative Code, with no local adoption needed. Volusia County's building chapter (Volusia County Code Chapter 22, Article I, codified through Ordinance No. 2026-07, June 2, 2026) contains the "Volusia County Administrative Section of the Florida Building Code" (Sec. 22-2, enacted by Ordinance No. 2005-14 and amended by Ordinance No. 2016-01, January 21, 2016, and by Ordinance No. 2023-44, December 5, 2023, which changed only its construction-hours provision), under which one- and two-family dwellings "shall comply with the Florida Building Code, Residential" and "Existing buildings undergoing repair, alterations or additions or change of occupancy shall comply with the provisions of the Florida Building Code, Existing Building." The county's Step 2 Building Permit Application calls for "Compliance with the current adopted Florida Building Code and Florida Fire Prevention Code". Sec. 22-4 (Ordinance No. 2019-8, April 16, 2019) adopts local technical amendments to the flood-resistant construction provisions (Residential Section R322 and Building Section 1612.4.2) and to the definition of "substantial improvement" in the Building and Existing Building volumes; none touches the roofing chapters. Sec. 22-3 fixes the location of the county's basic wind speed lines.