City of Marietta, Georgia - Development Services / Building Inspections

City of Marietta, Georgia

city

Required

Marietta states the permit trigger broadly and does not carve roofing out of it. The city's Building Permits guidance provides that a permit is required "whenever an owner or contractor intends to construct new, enlarge, alter, repair, move, demolish a building or structure, or install or alter any electrical, gas, mechanical, or plumbing system," and adds that utility construction and site development also require permits. Re-roofing a dwelling is an alteration/repair of a structure and falls inside that trigger; roofing does not appear among the exemptions Marietta publishes (its "Is anything exempt from a permit?" guidance surfaces fence construction as an exemption, subject to separate Planning and Zoning height, location and configuration requirements).

STATE-GOVERNED, NOT CITY-SET. Georgia designates a specific list of codes as MANDATORY state minimum standard codes that bind construction anywhere in the state whether or not the local government elects to enforce them locally. O.C.G.A. 8-2-25(a) provides that on and after July 1, 2004 the codes enumerated in O.C.G.A. 8-2-20(9)(A)(i)(I)-(VIII) and (9)(B)(i)(I)-(VIII) "shall have state-wide application and shall not require adoption by a municipality or county"; the Georgia Department of Community Affairs (DCA) restates this as "Georgia law gives the enumerated codes statewide applicability," so local governments need not formally adopt them but must adopt administrative procedures in order to enforce them. The International Residential Code is on the mandatory list. The operative residential standard is therefore the Georgia State Minimum Standard One- and Two-Family Dwelling Code = the 2024 International Residential Code with Georgia Amendments (the "Georgia State Amendments to the International Residential Code (2024 Edition), Revised January 1, 2026" packet), which the DCA Board adopted with an effective date of January 1, 2026. Marietta's Plan Review page states that all plans must comply with the current International Building Code, International Residential Code, Georgia Fire Codes and City of Marietta construction codes. A local government MAY adopt local amendments, but only ones MORE stringent than the state minimum, only where justified by local climatic, geologic, topographic or public safety factors, only after submitting the proposal with legislative findings to DCA for review and written recommendation, and only after filing the adopted amendment with the department. No Marietta-specific roofing amendment on file with DCA was located, so the state text is the operative roofing standard for Marietta.

Required — STATE-GOVERNED, NOT CITY-SET. Georgia's State Amendments packet to the 2024 IRC does not touch Chapter 9, so the base 2024 IRC drip-edge mandate at Section R905.2.8.5 applies in Marietta as adopted, with no Georgia rewrite and no Marietta local amendment identified. The literal ICC text of R905.2.8.5 (extent, lap, and fastening specifics) is behind the ICC paywall and is not restated here. The absence of any Georgia Chapter 9 amendment was established against the DCA amendment packet and the Georgia 2024 IRC viewer.

Not required — The Georgia State Amendments to the 2024 IRC (a full section-by-section amendment list) contains no entry touching IRC Chapter 9, and no Marietta-specific roofing amendment is on file with the Georgia Department of Community Affairs. No impact-resistant, Class 4, or UL 2218 roof-covering requirement appears in either instrument, so none applies in Marietta beyond whatever the unamended base 2024 IRC itself requires.

Marietta publishes NO cost-based exemption for repair or re-roofing permits - unlike the City of Atlanta, which exempts non-structural residential re-roofs under a $10,000 repair-valuation threshold, Marietta's own Building Permits guidance states a permit is required "whenever an owner or contractor intends to construct new, enlarge, alter, repair, move, demolish a building or structure," with no dollar-value carve-out for repair work. Marietta's own "Is anything exempt from a permit?" guidance names only fence construction as exempt (subject to separate Planning and Zoning height, location and configuration requirements); re-roofing is not listed among the exemptions. Practical effect: a Marietta re-roof requires a permit regardless of job cost.

STATE-GOVERNED, NOT CITY-SET. Re-cover and roof-replacement limits in Marietta are the base, unamended 2024 IRC Section R908 provisions as adopted in Georgia: the Georgia State Amendments packet to the 2024 IRC contains no amendment to IRC Chapter 9 (Roof Assemblies, R901-R908), and no Marietta local amendment to R908 was located. Marietta therefore has no city-specific overlay/layer rule of its own - unlike, for example, the City of Atlanta, whose Land Development Code Appendix A Section 103.4 writes an explicit three-layer figure into its own permit-exemption text. The operative numeric recover limit is base ICC text, which is behind the ICC paywall and is not restated here.

STATE-GOVERNED, NOT CITY-SET. The Georgia State Amendments packet to the 2024 IRC contains no amendment to IRC Chapter 9 (Roof Assemblies) at all, so the roof-covering provisions that apply in Marietta are the base, unamended 2024 IRC text as adopted in Georgia. Georgia's rendering of IRC Section R905.2.1 (Sheathing) reads: "Asphalt shingles shall be fastened to wood structural panels or solid lumber sheathing." The absence of any Chapter 9 amendment was confirmed by reading the DCA amendment packet page-by-page and cross-checking the Georgia 2024 IRC viewer.

6.00% combined in Marietta: 4.00% Georgia state rate + 2.00% Cobb County local rate. Marietta levies no additional municipal sales tax of its own, so the 6.00% figure applies uniformly across Cobb County including the Marietta city limits. This is the rate a roofing contractor pays on materials purchased in Marietta.