The Roofing Book

Permitting Authorities / Arizona / City of Phoenix - Planning and Development Department

Do you need a permit to replace a roof in Phoenix, AZ?

Adopted code

City of Phoenix - Planning and Development Department

The City of Phoenix, Arizona (Maricopa County) issues building permits through its Planning and Development Department. The City's published 2024 International Residential Code amendments state the code is the "International Residential Code Residential Code for One- and Two-Family Dwellings of as amended by the city of Phoenix" and part of the Phoenix Building Construction Code, adopted by Ordinance G-7397 effective August 1, 2025. Arizona has no statewide building code, so Phoenix's own adoption controls. This listing covers the adopted code edition, the wind and ice-barrier design values in the City's Table R301.2, and the state licensing and tax rules that apply to a roofer working in Phoenix. The City's current residential re-roof permit exemption was not located in current-edition text, so this record makes no permit-required statement.

Roof code checklist: Phoenix, AZ

ItemAnswerCode citeSourceVerified
Permit to replace a roofNot published
Repair permit thresholdNot published
Layer limit / roof-overNot published
Deck & sheathingNot published
Drip edgeNot published
Ice & water shieldNo2024-irc.pdf2026-10-25
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNot published
Wind design criteriaPublished2024-irc.pdf2026-10-25
Adopted codePublished2024-irc.pdf2026-10-25
Contractor license / registrationYesazleg.gov2026-10-25
Sales & use taxPublishedSec. 32-1121TPT_RATETABLE_10012026.pdf2026-10-25

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 Phoenix, Arizona
Jurisdiction type
city
Contact
  • url: https://www.phoenix.gov/pdd
  • phone: 602-262-7811
Contractor registration required
Required
Registration details
  • license: STATE LAYER, applies in Phoenix as everywhere in Arizona. Contractors are licensed by the Arizona Registrar of Contractors under A.R.S. Title 32, Chapter 10 (32-1101 et seq.). A.R.S. 32-1121(A)(14) exempts an unlicensed person only for one project whose aggregate contract price, including labor and materials, is "less than $1,000" and whose work is "of a casual or minor nature," and says the exemption "does not apply: (a) In any case in which the performance of the work requires a local building permit." Owner-occupants doing their own work on a structure intended solely for their own occupancy are separately exempt under 32-1121(A)(5). The specific roofing classification codes and the Registrar's own licensing page were not read for this record.
Adopted code
The City of Phoenix's 2024 IRC amendment document is marked "Adopted by City of Phoenix Ordinance G-7397 effective August 1, 2025" and states that these provisions are the International Residential Code as amended by the city of Phoenix and that the regulations are "one document of the overall Phoenix Building Construction Code as defined by the adopting ordinance." The document notes that for sections unchanged from the base code, "see this section of the 2024 IRC" refers to the unchanged base code. Section R105 (Permits) is marked "Reserved," with direction to refer to Chapter 1 of the International Building Code. The Phoenix IBC amendments and the permit exemption list in that chapter were not read for this record, so it gives no answer that depends on them.
Ice & water shield
Not required — The City's amended Table R301.2 lists "Ice barrier underlayment required: No." About ice & water barrier
Wind design criteria
The City's amended Table R301.2 in the 2024 IRC amendment document lists "Wind speed (mph): 105," "Topographic effects: NO," "Special wind region: NO," "Windborne debris zone: NO," "Seismic design category: B" and "Ground snow load: N/A."
Sales & use tax
Roofing is taxed in Arizona as Prime Contracting (business code 015) under the Transaction Privilege Tax, not as a retail sale. The Arizona Department of Revenue Transaction Privilege and Other Tax Rate Tables effective October 1, 2026 list Contracting - Prime at 6.30% for Maricopa County (the 5.6% state rate plus the county rate) and at 2.80% for the City of Phoenix (city code PX), a combined 9.10%. A.R.S. 42-5075(B) sets the tax base at "sixty-five percent of the gross proceeds of sales or gross income derived from the business," so the 9.10% applies to 65% of contract income. The same statute excludes from the classification "any work or operation performed by a person that is not required to be licensed by the registrar of contractors pursuant to section 32-1121."

More roof permit pages in Arizona

Prescott Valley, AZRoof permit Prescott, AZRoof permit Safford, AZRoof permit Sahuarita, AZRoof permit Scottsdale, AZRoof permit

Related guides

Denver-Metro Roofing Permits Filing a Hail Insurance Claim Colorado Hail Season Prep Hiring a Contractor

Working an insurance claim in Phoenix, AZ? 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).

Code items like ice & water shield are what adjusters ask you to document.

Buy this jurisdiction's pack: $12 Delivered by email within minutes. Digital download: all sales are final once delivered, except for a failed delivery, a defective file, a duplicate purchase, or a pack materially different from its description. See Section 6 of our Terms of Use.

Questions about the Phoenix, AZ pack?

Not ready to buy, or need a different jurisdiction? Tell us and we’ll reply directly.

By submitting, you agree to our Terms of Use and Privacy Policy.

Sources

Roofing questions: Phoenix, AZ

Is ice & water shield required in Phoenix, AZ?

No. The City's amended Table R301.2 lists "Ice barrier underlayment required: No."

Do roofing contractors need a license or registration in Phoenix, AZ?

Yes. STATE LAYER, applies in Phoenix as everywhere in Arizona. Contractors are licensed by the Arizona Registrar of Contractors under A.R.S. Title 32, Chapter 10 (32-1101 et seq.). A.R.S. 32-1121(A)(14) exempts an unlicensed person only for one project whose aggregate contract price, including labor and materials, is "less than $1,000" and whose work is "of a casual or minor nature," and says the exemption "does not apply: (a) In any case in which the performance of the work requires a local building permit." Owner-occupants doing their own work on a structure intended solely for their own occupancy are separately exempt under 32-1121(A)(5). The specific roofing classification codes and the Registrar's own licensing page were not read for this record.

What building code does Phoenix, AZ use?

The City of Phoenix's 2024 IRC amendment document is marked "Adopted by City of Phoenix Ordinance G-7397 effective August 1, 2025" and states that these provisions are the International Residential Code as amended by the city of Phoenix and that the regulations are "one document of the overall Phoenix Building Construction Code as defined by the adopting ordinance." The document notes that for sections unchanged from the base code, "see this section of the 2024 IRC" refers to the unchanged base code. Section R105 (Permits) is marked "Reserved," with direction to refer to Chapter 1 of the International Building Code. The Phoenix IBC amendments and the permit exemption list in that chapter were not read for this record, so it gives no answer that depends on them.