The Roofing Book

Permitting Authorities / Georgia / City of Alpharetta, Georgia - Community Development Department, Building Division

Do you need a permit to replace a roof in Alpharetta, GA?

Adopted code

City of Alpharetta, Georgia - Community Development Department, Building Division

The permitting authority for the City of Alpharetta, Georgia (Fulton County), in the northern Atlanta metropolitan area. Alpharetta enforces the Georgia State Minimum Standard Codes, which Georgia law applies statewide without local adoption (O.C.G.A. 8-2-25). The city's own role is permit administration, fees, inspections, local zoning, and any local amendment it has filed with the Georgia Department of Community Affairs; the technical content of the residential roofing code is set by the state, not by the city.

Roof code checklist: Alpharetta, GA

ItemAnswerCode citeSourceVerified
Permit to replace a roofNot published
Repair permit thresholdNot published
Layer limit / roof-overPublisheddca.georgia.gov2026-09-11
Deck & sheathingPublishedR905.2.1dca.georgia.gov2026-09-05
Drip edgeYesR905.2.8.5dca.georgia.gov2026-09-05
Ice & water shieldNot published
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNodca.georgia.gov2026-07-25
Wind design criteriaNot published
Adopted codePublishedSec. 8-29library.municode.com2026-09-05
Contractor license / registrationNot published
Sales & use taxPublisheddor.georgia.gov2026-07-25

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
City of Alpharetta, Georgia
Jurisdiction type
city
Address
Alpharetta, GA
Registration details
  • state_level: STATEWIDE, AND IT TURNS ON WHAT KIND OF CONTRACTOR YOU ARE RATHER THAN ON THE TRADE. Georgia licenses residential and commercial general contractors through the State Licensing Board for Residential and Commercial General Contractors under O.C.G.A. Title 43, Chapter 41, created by House Bill 1003 of 2004 and amended since, including by Senate Bill 115 of 2007 and Senate Bill 503 of 2024. There is no Georgia licence titled roofer: the chapter creates residential-basic, residential-light commercial and commercial general contractor licences and no roofing class, and O.C.G.A. 43-41-17(e) names the Chapter 14 trades it deals with as plumbing, conditioned air contracting, utility contracting, electrical contracting and low-voltage contracting, which does not include roofing. Section 43-41-17(a) provides that "No person, whether an individual or a business organization, shall have the right to engage in the business of residential contracting or commercial general contracting without a current, valid residential contractor license or commercial general contractor license, respectively", a requirement in force since July 1, 2008. What pulls a roofing job inside that requirement is a definition rather than a trade: O.C.G.A. 43-41-2(9) makes a person a residential contractor where the work falls into the residential-basic or residential-light commercial category and "the total value of the work or activity or of the compensation to be received by the contractor for such activity or work, whichever is the higher, exceeds $2,500.00". That figure is per job, taken on the higher of work value or compensation; it is not an annual figure, not a materials-only figure, and not specific to roofing. TWO EXCEPTIONS REACH ROOFING AND NEITHER IS A DOLLAR TEST. The first is the specialty-contractor exception at O.C.G.A. 43-41-17(f), which begins "Nothing in this chapter shall preclude a specialty contractor from offering or contracting to perform or undertaking or performing for an owner limited, specialty, or specific trade contractor work". As Chapter 41 was first enacted in 2004 that sentence carried on to confine the exception to work that put no part of the job under anyone but the contractor's own direct employees; Senate Bill 115 struck that limitation out in 2007, so the exception no longer states a supervision test. In its place the same subsection directs that "The board shall, by rule or policy, identify specialty contractors or other criteria to determine eligibility under the exemption of this subsection." Senate Bill 115 set a January 1, 2008 deadline for that, which Senate Bill 503 of 2024 deleted. The second is the repair exception at O.C.G.A. 43-41-17(g): "Nothing in this chapter shall preclude a person from offering or contracting to perform or undertaking or performing for an owner repair work, provided that the person performing the repair work discloses to the owner that such person does not hold a license under this chapter and provided, further, that such work does not affect the structural integrity of the real property." The board defined repair at Ga. Comp. R. & Regs. r. 553-8-.01 to mean "fixing, mending, maintenance, replacement or restoring of a part or portions of real property to good condition", on four conditions: written disclosure to the owner that the person is not licensed as a residential or general contractor, no delegation of supervision to anyone but employees, work that does not affect the life safety requirements or structural integrity of the property, and obtaining the permits and inspections the local authority requires. Whether a full tear-off and replacement is repair within that definition is a legal question neither the statute nor the rule answers. WHAT THE BOARD HAS SAID ABOUT ROOFERS, AND WHERE IT STOPS. No rule identifying specialty contractors was ever made: the board's regulations at Department 553 of the Georgia Administrative Code run twelve chapters - organisation, examination exemption, qualifications for licensure in each division, procedural rules, fees, written warranty, definitions, disciplinary action, inactive licence, changes in status, and licence renewal and continuing education - and not one of them names a trade. Since Senate Bill 115 the same subsection has also let an exempt specialty contractor take on work that would otherwise need a licence "where the total scope of the work to be performed is predominantly of the type for which such specialty contractor is duly recognized as exempt under this subsection by the board, provided that such other work involved is incidental to and an integral part of the exempt work performed by the specialty contractor and does not exceed the greater of $10,000.00 or 25 percent of the total value at the time of contracting of the work to be performed". The statute allowed policy as the alternative to a rule, and the board has published it on its own site, sos.ga.gov. Its "Traditional Specialty Contractors Policy Statements" (revised 03/06/20) list Flat Roofing, Sheet Metal Roofing, Shingles and Shakes, and Gutters and Downspouts among the specialty categories, and state that "Traditional specialty contractors will not be required to carry a residential or general contractor license but will be required to comply with all applicable national, state, and local codes and ordinances." Its "Limited Service Specialty Contractors Policy Statements" (revised 01/31/12) list "Re-Roofing of Existing Structures" as a separate limited-service category whose allowable work is rooftop equipment, demolition and remediation, adding: "You may be required to hold a contractor license if your company exceeds this scope of work." Both documents say "The following list is under development and subject to change." So a roofer whose job is predominately shingle, flat or sheet-metal roofing, with any other work incidental to it and inside the statute's $10,000.00-or-25-percent limit, is within the board's published specialty categories, which the board says do not require the residential or general contractor licence; a job that goes beyond that scope can bring the licence requirement back. The list is the board's policy rather than a rule and can change, so where a job is marginal, put its scope to the board before bidding. Two state publications say the same in general terms: the board's consumer handout "TIPS FOR CONSUMERS", which Cherokee County gives out at its permit counter, says specialty services "do not require that the person be licensed" and names roofers, and the Attorney General's Consumer Protection Division says "certain specialty occupations such as roofers, painters, drywall contractors, and repair handymen are not required to be licensed by the state"; Johns Creek's building guidance notes "exceptions for limited specialty contractors such as pool and retaining wall installers, roofers, etc." THE SANCTION IS WHY THIS IS WORTH SETTLING BEFORE YOU SIGN. Under O.C.G.A. 43-41-17(b) a contract entered into on or after July 1, 2008 for work for which a licence is required, between an owner and a contractor who does not hold one, "shall be unenforceable in law or in equity by the unlicensed contractor", and "no lien or bond claim shall exist in favor of the unlicensed contractor for any labor, services, or materials provided under the contract". AND ONE THING THE STATE DOES TO THE LOCAL LAYER. O.C.G.A. 43-41-17(c) provides that "no municipality or county may require any such person licensed under this chapter to comply with any additional licensing requirements imposed by such municipality or county relative to the performance of construction work subject to the licensing requirements under this chapter", while preserving a local licence, registration or certification requirement already "in effect and operation as of the effective date of this chapter or July 1, 2004, whichever is earlier" - and even then the local requirement may not shut a state-licensed contractor out of the jurisdiction. So where a Georgia city or county credential is pressed against a state-licensed contractor, the date the local scheme was adopted is the test.
  • city_level: NOT ESTABLISHED. Whether this city runs a contractor registration or licensing scheme of its own, on top of the state position above, was not researched when this field was written, and no negative is asserted here. The question is a real one rather than a formality: O.C.G.A. 43-41-17(c), quoted above, contemplates a Georgia local licensing, registration or certification requirement that can bind even a state-licensed contractor where the scheme was in effect and operation on or before July 1, 2004, and it leaves untouched whatever a local government asks of a contractor who is not state licensed. Separately, Georgia cities and counties levy an occupation tax and issue a business licence for it; that is ordinary business taxation rather than a trade credential, but it will stop a permit just as effectively, and many Georgia jurisdictions will not issue it until a Title 43 state licence has been produced. Put both questions to this city's building department and its business-licence office before bidding.
Adopted code
STATE-GOVERNED, NOT CITY-SET. Georgia's residential construction standard is the Georgia State Minimum Standard One- and Two-Family Dwelling Code: the 2024 International Residential Code (IRC) with Georgia Amendments, adopted by the Board of Community Affairs and effective January 1, 2026. 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) -- which include the residential one- and two-family dwelling code -- "shall have state-wide application and shall not require adoption by a municipality or county." The Georgia Department of Community Affairs states the same effect for the mandatory code set: "any structure built in Georgia must comply with these codes, whether or not the local government chooses to locally enforce these codes." A municipality or county may adopt a local amendment only where it is MORE stringent than the state minimum and is justified by local climatic, geologic, topographic or public safety factors, and only after submitting the proposed amendment to DCA and filing the adopted amendment with the department. Alpharetta therefore builds to the 2024 IRC with Georgia Amendments; the city sets permit administration, fees and inspections rather than roofing code content. APPENDIX U, DISASTER RESILIENT CONSTRUCTION, HAS NOT BEEN SHOWN TO BE ADOPTED IN ALPHARETTA. The Department of Community Affairs adopts that appendix to the Residential Code as a permissive code rather than a mandatory one, and the appendix says the same thing about itself at AU101.3.1: "The provisions of this appendix are not mandatory unless specifically referenced in an adopting ordinance of [NAME OF JURISDICTION]. If adopted, the provisions shall apply to all new development and to substantial improvements to existing development." The Department's guidance sets out how a city takes one up: "in order for a local government to enforce one or more of these permissive codes, that code or codes must be adopted, either by ordinance or resolution, by the local jurisdiction", with a copy of the ordinance or resolution forwarded to the Department under O.C.G.A. 8-2-25(b). Alpharetta adopts by enumeration and names no appendix of any code. Chapter 8 of the Alpharetta Code of Ordinances, Buildings and Building Regulations, was read in full across all nine articles, and the word appendix does not occur in it once. Adopting section 8-29 takes the state minimum standard codes listed in O.C.G.A. 8-2-20(9)(B)(i) by name, then the International Swimming Pool and Spa Code and the Industrialized Buildings rules, then two sets of Safety Fire Commissioner rules, then the City's own permitting and inspection policies and the city Domestic Sprinkler Installation Code. That Alpharetta adopts a permissive code expressly when it wants one is plain from Article III, where section 8-47 adopts the International Property Maintenance Code in a section of its own. The City's Residential Building Inspection Policies and Procedures, one of the documents section 8-29 incorporates by reference, was also read in full, 23 pages revised 2026, and adopts no appendix either; Alpharetta's Unified Development Code carries no code appendix adoption and no occurrence of Disaster Resilient. So the enhanced roof-deck sealing and shingle fastening the appendix carries at AU408 do not apply in Alpharetta. Note in any event that AU101.3.1 would limit the appendix, where a jurisdiction does adopt it, to new development and to substantial improvements to existing development, and the appendix does not define substantial improvement, so it is not a rule about how an ordinary reroof is installed.
Drip edge
Required — STATE-GOVERNED, NOT CITY-SET. Alpharetta adopts the state codes rather than writing its own: Municipal Code section 8-29, "Building codes adopted," adopts and incorporates by reference "the latest editions" of the state minimum standard codes enumerated in O.C.G.A. 8-2-20(9)(B)(i), listing among them the "International Residential Code for One- and Two-Family Dwellings (ICC)", "all as adopted, amended, and/or supplemented, from time to time, by the Georgia Department of Community Affairs." That adoption floats with the state rather than freezing an edition, and section 8-29(b) adds that where a City-listed publication is less stringent than the state minimum code, the state minimum code controls. The International Residential Code is in any event a mandatory state minimum standard code, so under O.C.G.A. 8-2-25(a) it binds construction in Alpharetta whether or not the City elects to enforce it locally. The Georgia Department of Community Affairs amendment packet for the 2024 IRC, revised January 1, 2026, was read in full for this entry: it amends Chapters 1, 2, 3, 4, 5, 6, 8, 16, 19, 24 and 44 and Appendices BB, U and AY, and it carries no amendment to Chapter 9 (Roof Assemblies) at all, so the Chapter 9 drip-edge provision at Section R905.2.8.5 stands as written, neither deleted nor rewritten for Georgia. Alpharetta's own building instrument was read in full as well: Municipal Code Chapter 8, Buildings and Building Regulations, all nine articles, from Article I (In General) through Article IX (Private Decentralized Wastewater Systems). Nothing in it mentions drip edge, underlayment, sheathing or shingles, and none of it amends any part of IRC Chapter 9. The City's Unified Development Code was searched as well and contains no roofing-code amendment either. The operative ICC text of R905.2.8.5, which sets the installation extent, laps and fastening, sits behind the ICC paywall; this record does not restate it and does not rely on any third-party republication of it. What is recorded is the sourced fact that the requirement is in force in Alpharetta unamended. About drip edge
Impact-resistant roofing
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 Alpharetta's own adopted-code record shows no known local roofing amendment either - the city's role is permit administration, fees and inspections rather than code content. No impact-resistant, Class 4, or UL 2218 roof-covering requirement appears in the state amendment instrument, so none applies in Alpharetta beyond whatever the unamended base 2024 IRC itself requires.
Roof layer limit / recover
TWO LAYERS MAXIMUM, SET BY THE STATE CODE; ALPHARETTA WRITES NO LAYER RULE OF ITS OWN. Alpharetta adopts the state codes rather than writing its own: Municipal Code section 8-29, "Building codes adopted," adopts and incorporates by reference "the latest editions" of the state minimum standard codes enumerated in O.C.G.A. 8-2-20(9)(B)(i), listing among them the "International Residential Code for One- and Two-Family Dwellings (ICC)", "all as adopted, amended, and/or supplemented, from time to time, by the Georgia Department of Community Affairs." Alpharetta's own building instrument was read in full for this entry: Municipal Code Chapter 8, Buildings and Building Regulations, all nine articles, from Article I (In General) through Article IX (Private Decentralized Wastewater Systems). It contains no rule of its own on re-covering a roof or on the number of roof-covering layers, no amendment to any part of IRC Chapter 9, and no reference to R908. The City's Unified Development Code, which carries Alpharetta's zoning and design standards, was searched as well and contains none either. The Georgia Department of Community Affairs amendment packet for the 2024 IRC, revised January 1, 2026, was read in full and carries no amendment to Chapter 9. So the operative limit on re-covering an existing roof in Alpharetta is whatever the base IRC Chapter 9 reroofing provisions at Section R908 require, as adopted for Georgia and unmodified by the City. Base-code rule, read at 2024 International Residential Code Section R908.4, Roof recover, Exceptions, and quoted here rather than left behind the ICC paywall: a roof recover "shall not be permitted" where "the existing roof has two or more applications of any type of roof covering." One existing layer may be recovered; a second existing layer means a tear-off to the deck. Confirm anything unusual with Alpharetta Community Development before the tear-off.
Deck & sheathing requirements
NOT SET BY THE CITY, AND NOT RESTATED HERE. Alpharetta adopts the state codes rather than writing its own: Municipal Code section 8-29, "Building codes adopted," adopts and incorporates by reference "the latest editions" of the state minimum standard codes enumerated in O.C.G.A. 8-2-20(9)(B)(i), listing among them the "International Residential Code for One- and Two-Family Dwellings (ICC)", "all as adopted, amended, and/or supplemented, from time to time, by the Georgia Department of Community Affairs." Alpharetta's own building instrument was read in full for this entry: Municipal Code Chapter 8, Buildings and Building Regulations, all nine articles, from Article I (In General) through Article IX (Private Decentralized Wastewater Systems). Nothing in it addresses roof-deck sheathing, the substrate an asphalt shingle may be fastened to, or the fastening of a roof covering; the words sheathing, underlayment and shingle do not appear in the chapter at all, and its only two references to a roof are in Article VII (Permits), where section 8-179 requires a permit to alter or remodel a building "so as to change the bearing walls, beams, supports or the roof thereof" and section 8-180 requires plans for "remodeling or repairing affecting bearing walls, roofs other than resurfacing, or chimneys." The Georgia Department of Community Affairs amendment packet for the 2024 IRC, revised January 1, 2026, was also read in full and carries no amendment to Chapter 9 (Roof Assemblies). The governing provision is therefore the base Chapter 9 sheathing requirement, IRC Section R905.2.1, as adopted for Georgia and unmodified by either government. That ICC text is behind the ICC paywall and this record deliberately does not reproduce it from any third-party republication, so a roofer needing the exact wording should read it in the code itself or ask Alpharetta Community Development.
Sales & use tax
7.75% combined in Alpharetta. Georgia's Department of Revenue Sales and Use Tax Rate Chart lists jurisdiction code 060, "Fulton*" (Fulton County outside the City of Atlanta, Hapeville, College Park and East Point), at 7.75%, which includes the 4% Georgia state rate plus Fulton County, MARTA, and other local components. This rate applies uniformly across Fulton County including Alpharetta, and is lower than the 8.9% rate that applies inside the City of Atlanta. This is the rate a roofing contractor pays on materials purchased in Alpharetta.

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Hail reports near Alpharetta, GA

Reports, last 24 months
12
Largest, last 24 months
1.75 in Jun 26, 2025
Most recent
Jul 4, 2026 1.00 in
Reports, last 5 years
13
5 most recent reports, last 5 years
DateHail sizeDistance
Jul 4, 20261.00 in9 mi SE
Jun 27, 20251.00 in6 mi S
Jun 26, 20251.75 in5 mi W
Jun 26, 20251.50 in5 mi SSW
Jun 26, 20251.00 in7 mi NNW

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 Alpharetta, GA (Census point). Data through Oct 7, 2026, not updated since. A report is an observation, not a damage record.

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Roofing questions: Alpharetta, GA

Is drip edge required in Alpharetta, GA?

Yes. STATE-GOVERNED, NOT CITY-SET. Alpharetta adopts the state codes rather than writing its own: Municipal Code section 8-29, "Building codes adopted," adopts and incorporates by reference "the latest editions" of the state minimum standard codes enumerated in O.C.G.A. 8-2-20(9)(B)(i), listing among them the "International Residential Code for One- and Two-Family Dwellings (ICC)", "all as adopted, amended, and/or supplemented, from time to time, by the Georgia Department of Community Affairs." That adoption floats with the state rather than freezing an edition, and section 8-29(b) adds that where a City-listed publication is less stringent than the state minimum code, the state minimum code controls. The International Residential Code is in any event a mandatory state minimum standard code, so under O.C.G.A. 8-2-25(a) it binds construction in Alpharetta whether or not the City elects to enforce it locally. The Georgia Department of Community Affairs amendment packet for the 2024 IRC, revised January 1, 2026, was read in full for this entry: it amends Chapters 1, 2, 3, 4, 5, 6, 8, 16, 19, 24 and 44 and Appendices BB, U and AY, and it carries no amendment to Chapter 9 (Roof Assemblies) at all, so the Chapter 9 drip-edge provision at Section R905.2.8.5 stands as written, neither deleted nor rewritten for Georgia. Alpharetta's own building instrument was read in full as well: Municipal Code Chapter 8, Buildings and Building Regulations, all nine articles, from Article I (In General) through Article IX (Private Decentralized Wastewater Systems). Nothing in it mentions drip edge, underlayment, sheathing or shingles, and none of it amends any part of IRC Chapter 9. The City's Unified Development Code was searched as well and contains no roofing-code amendment either. The operative ICC text of R905.2.8.5, which sets the installation extent, laps and fastening, sits behind the ICC paywall; this record does not restate it and does not rely on any third-party republication of it. What is recorded is the sourced fact that the requirement is in force in Alpharetta unamended.

Can you roof over an existing roof in Alpharetta, GA?

TWO LAYERS MAXIMUM, SET BY THE STATE CODE; ALPHARETTA WRITES NO LAYER RULE OF ITS OWN. Alpharetta adopts the state codes rather than writing its own: Municipal Code section 8-29, "Building codes adopted," adopts and incorporates by reference "the latest editions" of the state minimum standard codes enumerated in O.C.G.A. 8-2-20(9)(B)(i), listing among them the "International Residential Code for One- and Two-Family Dwellings (ICC)", "all as adopted, amended, and/or supplemented, from time to time, by the Georgia Department of Community Affairs." Alpharetta's own building instrument was read in full for this entry: Municipal Code Chapter 8, Buildings and Building Regulations, all nine articles, from Article I (In General) through Article IX (Private Decentralized Wastewater Systems). It contains no rule of its own on re-covering a roof or on the number of roof-covering layers, no amendment to any part of IRC Chapter 9, and no reference to R908. The City's Unified Development Code, which carries Alpharetta's zoning and design standards, was searched as well and contains none either. The Georgia Department of Community Affairs amendment packet for the 2024 IRC, revised January 1, 2026, was read in full and carries no amendment to Chapter 9. So the operative limit on re-covering an existing roof in Alpharetta is whatever the base IRC Chapter 9 reroofing provisions at Section R908 require, as adopted for Georgia and unmodified by the City. Base-code rule, read at 2024 International Residential Code Section R908.4, Roof recover, Exceptions, and quoted here rather than left behind the ICC paywall: a roof recover "shall not be permitted" where "the existing roof has two or more applications of any type of roof covering." One existing layer may be recovered; a second existing layer means a tear-off to the deck. Confirm anything unusual with Alpharetta Community Development before the tear-off.

What building code does Alpharetta, GA use?

STATE-GOVERNED, NOT CITY-SET. Georgia's residential construction standard is the Georgia State Minimum Standard One- and Two-Family Dwelling Code: the 2024 International Residential Code (IRC) with Georgia Amendments, adopted by the Board of Community Affairs and effective January 1, 2026. 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) -- which include the residential one- and two-family dwelling code -- "shall have state-wide application and shall not require adoption by a municipality or county." The Georgia Department of Community Affairs states the same effect for the mandatory code set: "any structure built in Georgia must comply with these codes, whether or not the local government chooses to locally enforce these codes." A municipality or county may adopt a local amendment only where it is MORE stringent than the state minimum and is justified by local climatic, geologic, topographic or public safety factors, and only after submitting the proposed amendment to DCA and filing the adopted amendment with the department. Alpharetta therefore builds to the 2024 IRC with Georgia Amendments; the city sets permit administration, fees and inspections rather than roofing code content. APPENDIX U, DISASTER RESILIENT CONSTRUCTION, HAS NOT BEEN SHOWN TO BE ADOPTED IN ALPHARETTA. The Department of Community Affairs adopts that appendix to the Residential Code as a permissive code rather than a mandatory one, and the appendix says the same thing about itself at AU101.3.1: "The provisions of this appendix are not mandatory unless specifically referenced in an adopting ordinance of [NAME OF JURISDICTION]. If adopted, the provisions shall apply to all new development and to substantial improvements to existing development." The Department's guidance sets out how a city takes one up: "in order for a local government to enforce one or more of these permissive codes, that code or codes must be adopted, either by ordinance or resolution, by the local jurisdiction", with a copy of the ordinance or resolution forwarded to the Department under O.C.G.A. 8-2-25(b). Alpharetta adopts by enumeration and names no appendix of any code. Chapter 8 of the Alpharetta Code of Ordinances, Buildings and Building Regulations, was read in full across all nine articles, and the word appendix does not occur in it once. Adopting section 8-29 takes the state minimum standard codes listed in O.C.G.A. 8-2-20(9)(B)(i) by name, then the International Swimming Pool and Spa Code and the Industrialized Buildings rules, then two sets of Safety Fire Commissioner rules, then the City's own permitting and inspection policies and the city Domestic Sprinkler Installation Code. That Alpharetta adopts a permissive code expressly when it wants one is plain from Article III, where section 8-47 adopts the International Property Maintenance Code in a section of its own. The City's Residential Building Inspection Policies and Procedures, one of the documents section 8-29 incorporates by reference, was also read in full, 23 pages revised 2026, and adopts no appendix either; Alpharetta's Unified Development Code carries no code appendix adoption and no occurrence of Disaster Resilient. So the enhanced roof-deck sealing and shingle fastening the appendix carries at AU408 do not apply in Alpharetta. Note in any event that AU101.3.1 would limit the appendix, where a jurisdiction does adopt it, to new development and to substantial improvements to existing development, and the appendix does not define substantial improvement, so it is not a rule about how an ordinary reroof is installed.