Do you need a permit to replace a roof in Tulsa County, OK?

Tulsa County, Oklahoma

county

218 W. 6th St., 2nd Floor, Tulsa, OK 74119-1004

Required About Oklahoma roofing contractor registration

The Inspections Department page states it "issues all building and trade permits in the unincorporated areas of Tulsa County, including new residential and commercial building and remodeling permits; as well as demolitions, cell tower, billboard, house moving and earth change permits," applied for through the county's SmartGov portal. The department's residential permit guidance states "Tulsa County issues building permits only for the unincorporated areas of Tulsa County" and that "[p]ermits are required for all property improvements including new structures (residential and commercial), additions to existing structures, placement of mobile homes, construction of outbuildings, swimming pools, signs, cell towers, ponds, earth change, or development of any kind."

Tulsa County's Order of Inspections document states "All permits are issued by the Tulsa County Inspections Department" and lists the required inspection sequence for permitted construction (site/footing/erosion control, rough frame, final frame, final building occupancy, plus trade finals), noting inspections must be called in to 918-596-5293 before 9:30 a.m. for same-day service, with the permit number and site address required. The companion Inspection Regulations document notes that the "Rough Framing inspection takes place after structure is completely framed, except the roof decking."

The Inspections Department page states "Tulsa County follows these building codes: International Building Code 2018, International Existing Building Code 2018, International Residential Code 2018, International Fuel Gas Code 2018, International Mechanical Code 2018, International Plumbing Code 2018, National Electrical Code 2023, International Fire Code 2018."

Not required — Board of County Commissioners of Tulsa County, Oklahoma, "Resolution Adopting International Building Codes, As Previously Amended," transmitted for approval by a September 11, 2025 memo from the Inspections Department director recommending an effective date of October 6, 2025. Section 1 adopts the 2018 IBC (with Appendix J), 2018 IPC, 2018 IFGC, 2018 IMC, 2018 IRC, 2018 IEBC, and 2018 IFC (with Appendices A-D), plus the 2023 NEC, "as adopted and modified by the State of Oklahoma through the Oklahoma Uniform Building Code Commission." Section 2's enumerated additions, deletions and changes were read in full: two IPC/IMC fee-refund section deletions, deletion of IRC Section R313 (automatic fire sprinkler systems), several IBC administrative-section additions and changes (alarm and fire extinguisher industry acts, permit expiration, submittal documents, permit valuations, emergency measures, Appendix J grading exemptions and compaction), IRC additions/changes at R105.3.3 (zoning clearance), R105.5 (expiration), R109.1.3 (floodplain inspections), R109.1.6 (final inspection), R310.1 (emergency escape and rescue openings), R403.1.1 and R403.1.1.1 (footing size and reinforcement), and one NEC addition. None of these touch Chapter 9 (Roof Assemblies); the resolution's full text contains zero occurrences of "roof" in any form, so R902 (fire classification), R905 (roof coverings), and R908 (roof replacement) all stand as unamended base 2018 IRC text, and no UL 2218, Class 4, or impact-resistance provision appears anywhere in the resolution. Oklahoma is a floor state (59 O.S. § 1000.23) preserving county authority to be stricter, so this negative rests on the county's own resolution, not on the state rule; the resolution's own Section 1 expressly incorporates by reference the matching-vintage Oklahoma Uniform Building Code Commission IRC 2018 Permanent Rule (OAC Title 748, Ch. 20, Subch. 5-6, Chapter 9 at 748:20-6-14, 13 modifications), which a prior worker read in full and which independently contains zero UL 2218, Class 4, or hail provisions.

Tulsa County has no locally codified amendment to IRC R908 (confirmed by a prior wave's read of the county's inspections/building PDFs, and by this wave's read of the state rule -- no county-specific building-code ordinance amending Chapter 9 was located), so the applicable rule is the Oklahoma Uniform Building Code Commission's own statewide R908.3.1.1, in force as the mandatory minimum "for residential building construction for one- and two-family dwellings and townhouses in Oklahoma pursuant to 59 O.S. Sec. 1000.23," which "may only be amended or altered by other jurisdictions pursuant to Oklahoma law" (OAC 748:20-6-2): "R908.3.1.1. Roof re-cover. A roof re-cover shall not be permitted where any of the following conditions occur: 1. Where the existing roof or roof covering is water soaked or has deteriorated to the point that the existing roof or roof covering is not adequate as a base for additional roofing. 2. Where the existing roof covering is slate, clay, cement or asbestos-cement tile. 3. Where the existing roof has two or more applications of any type of roof covering. 4. Where the existing roof has one or more application of asphalt shingles additional applications of asphalt shingles shall not be permitted." (OAC 748:20-6-14(13)).

No county-specific amendment to IRC R905 was located (the same gap noted for the roof layer limit), so the applicable rule is the OUBCC's own statewide R905.2.1, mandatory absent a county amendment: "R905.2.1 Sheathing requirements. Asphalt shingles shall be fastened to solidly sheathed decks. Solidly sheathed decks shall be defined as sawn lumber boards or structural panels that provide a solid holding power for fasteners that do not have deficit conditions (gaps greater than those allowed by the roof covering manufacturer's installation instructions, warped, split, cracked, deteriorated or rotten boards)." (OAC 748:20-6-14(2)).

Unincorporated Tulsa County combined rate is 4.867% (state 4.5% + Tulsa County 0.367% -- Tulsa County has the lowest county rate of any OK county in this roster). Incorporated cities within the county (Tulsa, Broken Arrow, Bixby, Jenks, Owasso, Sand Springs, and others) each add their own city rate on top of this county-plus-state figure -- see those cities' own records; this value covers unincorporated county land and the county-tax component only. Oklahoma taxes roofing contractors as consumers/users: they pay sales tax on materials, supplies, and equipment at the point of purchase from the vendor, and do not separately charge the homeowner sales tax on labor or the finished job (Oklahoma Tax Commission Rule OAC 710:65-7-13(a): "Contractors are defined by statute as consumer/users and must pay sales tax on all taxable services and tangible personal property, including materials, supplies, and equipment purchased to develop, repair, alter, remodel, and improve real property."). No construction use tax collected at building-permit issuance was found in OTC or city sources -- Oklahoma's local sales tax is OTC-administered and collected by material vendors at the point of sale, not assessed by the permitting authority at permit issuance.