The Roofing Book

Permitting Authorities / Village of Oak Park Permits and Development Division

Do you need a permit to replace a roof in Oak Park, IL?

Adopted code

Village of Oak Park Permits and Development Division

Yes, a permit is required to replace a roof in Oak Park, IL, issued by Village of Oak Park Permits and Development Division. The Village's Building Permits page lists, among work that needs a permit, "Repairs such as re-roofing, replacing sidewalks and/or driveways, and rebuilding porches, guardrails or stairs." The Village's Roofing Guidelines open with "A permit is required. Apply on line at www.oak-park.us," and require a copy of the contractor's written proposal or contract with the application, with "The contractor's state license number" listed on it, plus "A detailed description of all proposed work" and a sketch or plat map showing "all penetrations, vents, electric service lines, solar arrays, roof slopes, and any additional items to be added, replaced or reused (gutters, downspouts)." Historic districts, in the guidelines' words: "For structures located within a Historic District, product information and/or samples may need to be submitted for review. For information, contact the Village's Historic Preservationist at 708-358-5417." Near a lot line: "When the edge of the roof is less than three feet from the property line the roof coverings must carry an ANSI/UL 790 Class A, B or C rating" (a fire rating, not an impact rating). Roofing is listed in the "Alteration - General" line of the Village's 2026 residential construction fee schedule, and inspections are scheduled at 708-358-5430 or online.

Roof code checklist: Oak Park, IL

ItemAnswerCode citeSourceVerified
Permit to replace a roofYesoak-park.us2026-10-03
Repair permit thresholdPublishedroofing-guidelines.pdf2026-10-03
Layer limit / roof-overNot published
Deck & sheathingPublishedroofing-guidelines.pdf2026-10-03
Drip edgeYesroofing-guidelines.pdf2026-10-03
Ice & water shieldYesroofing-guidelines.pdf2026-10-03
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNot published
Wind design criteriaNot published
Adopted codePublishedSec. 7-2-1oak-park.us2026-10-03
Contractor license / registrationYesroofing-guidelines.pdf2026-10-03
Sales & use taxNot published

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
Village of Oak Park, Illinois
Jurisdiction type
city
Address
123 Madison St., Oak Park, IL 60302
Contact
  • url: https://www.oak-park.us/Building-Business/Building-Permits
  • phone: 708-358-5430
Roofing permit required
Required
Contractor registration required
Required
Registration details
  • city_level: A VILLAGE CONTRACTOR REGISTRATION WITH AN INSURANCE CERTIFICATE ON FILE, ON TOP OF A STATE LICENSE. The Village's Roofing Guidelines: "Contractors must be state-licensed and registered with the Village of Oak Park. A copy of the license must be submitted with your registration." The Village's Building Permits page: "Contractors are required to have a valid certificate of insurance on file with the Village of Oak Park. Proof of insurance should be uploaded to the contractor's online registration." The contractor's state license number must also appear on the contract or proposal submitted with the permit application. The Village's 2026 construction fee schedule carries a charge for "Allowing work to be conducted by unregistered contractor(s)."
Permit process note
The Village's Building Permits page lists, among work that needs a permit, "Repairs such as re-roofing, replacing sidewalks and/or driveways, and rebuilding porches, guardrails or stairs." The Village's Roofing Guidelines open with "A permit is required. Apply on line at www.oak-park.us," and require a copy of the contractor's written proposal or contract with the application, with "The contractor's state license number" listed on it, plus "A detailed description of all proposed work" and a sketch or plat map showing "all penetrations, vents, electric service lines, solar arrays, roof slopes, and any additional items to be added, replaced or reused (gutters, downspouts)." Historic districts, in the guidelines' words: "For structures located within a Historic District, product information and/or samples may need to be submitted for review. For information, contact the Village's Historic Preservationist at 708-358-5417." Near a lot line: "When the edge of the roof is less than three feet from the property line the roof coverings must carry an ANSI/UL 790 Class A, B or C rating" (a fire rating, not an impact rating). Roofing is listed in the "Alteration - General" line of the Village's 2026 residential construction fee schedule, and inspections are scheduled at 708-358-5430 or online.
Adopted code
THE 2024 I-CODES, INCLUDING THE 2024 INTERNATIONAL RESIDENTIAL CODE AND THE 2024 INTERNATIONAL EXISTING BUILDING CODE, FOR PERMITS APPLIED FOR AFTER JANUARY 1, 2026. The Village's Building Permits page: "On Sept. 16, 2025, the Village of Oak Park Board of Trustees adopted the 2024 I-Codes and 2023 NEC, which applies to all permits applied for after Jan. 1, 2026," listing the Residential Code and the Existing Building Code among them. The Village's ordinance amending Chapter 7, Article 2 of the Village Code amends Section 7-2-1 to read "The 2024 International Existing Building Code (IEBC), as published by the International Code Council, is hereby adopted by the Village by reference," deletes the IEBC's Chapter 1, Part 2 (administration and enforcement), and provides that "Administration and enforcement of this code shall be governed by applicable provisions of chapter 1 of the 2024 International Building Code, as amended and adopted by the Village." For a reroof, the Village's Roofing Guidelines (dated December 26, 2025) refer to "Chapter 8 & 9 of the 2024 IRC" and cite IRC sections 908.4, 908.5 and 908.6, while the Village's 2024 residential code presentation notes list "Section 102.7.1 - Additions, Alterations or Repairs / IEBC specifically called out." This record has not read the Village's codified local amendments to the 2024 IRC, so it does not state whether they touch the roof-assemblies chapter, and it publishes no layer limit or impact-rating answer on the base code.
Drip edge
Required — REQUIRED BY THE VILLAGE'S ROOFING GUIDELINES. "Drip edge & or gutter apron is required on all rakes & eaves and shall overlap each other a minimum of 2"." The guidelines also state "Gutters may not be attached through drip edge." The Village's 2024 residential code presentation notes (November 2025) repeat the reminder "Drip edge required for all eaves and rakes - shingles." About drip edge
Ice & water shield
Required — REQUIRED BY THE VILLAGE'S ROOFING GUIDELINES. "An ice barrier is required and must extend from the lowest roof point to a point at least 24 inches inside the exterior wall line of the building. In most cases this will require 2 rows be installed before continuing with other underlayment options." The guidelines add: "Detached accessory structures (shed / garage) are exempt from this unless they are conditioned spaces. (Furnace / AC / Radiant Heat)" About ice & water barrier
Repair permit threshold
TWO SMALL LEAK-REPAIR EXCEPTIONS, STATED IN THE VILLAGE'S ROOFING GUIDELINES. Under "A permit is required," the guidelines list: "Exceptions: Repair of leaking roof flashings involving less than 10 linear feet of flashing; OR Repair of leaking roof membrane involving less than 100 square feet of roof covering materials." The guidelines also state that repairs are not allowed where "The existing roof covering, sheathing, or insulation; is water-soaked &/or is an inadequate base," where "a roof recover has already been performed. (2 layers of roof)," or where "Organic shingles or asbestos based products have been installed."
Deck & sheathing requirements
STATED IN THE VILLAGE'S ROOFING GUIDELINES. "Any rotted sheathing or structural members must be replaced, and roof coverings must be applied to solid sheathing. A 1/8" gap between boards is acceptable - if larger it must be re-sheathed." And: "Roof sheathing must be inspected to ensure it is securely fastened to the roof assembly." The guidelines add that fasteners "are to be long enough to penetrate all layers of roofing and underlayment and 3/4" into the sheathing," and that foam board insulation installed above the sheathing "is to be a minimum of two layers with offset seams that are taped." The guidelines call themselves "a general list" and refer to Chapters 8 and 9 of the 2024 IRC for full requirements.

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The building permitting authority for the Village of Oak Park, Illinois, in Cook County. The Village's Building Permits page names re-roofing among the repairs that need a permit, and says that on September 16, 2025 the Village Board of Trustees adopted the 2024 I-Codes and the 2023 NEC, applying to all permits applied for after January 1, 2026. The Village publishes its own Roofing Guidelines for re-roofing (dated December 26, 2025), which set out the permit exceptions, contractor registration, historic district review, drip edge, ice barrier, sheathing and inspection requirements quoted in this record.

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Sources

Roofing questions: Oak Park, IL

Do you need a permit to replace a roof in Oak Park, IL?

Yes, a permit is required to replace a roof in Oak Park, IL. TWO SMALL LEAK-REPAIR EXCEPTIONS, STATED IN THE VILLAGE'S ROOFING GUIDELINES. Under "A permit is required," the guidelines list: "Exceptions: Repair of leaking roof flashings involving less than 10 linear feet of flashing; OR Repair of leaking roof membrane involving less than 100 square feet of roof covering materials." The guidelines also state that repairs are not allowed where "The existing roof covering, sheathing, or insulation; is water-soaked &/or is an inadequate base," where "a roof recover has already been performed. (2 layers of roof)," or where "Organic shingles or asbestos based products have been installed."

Is ice & water shield required in Oak Park, IL?

Yes. REQUIRED BY THE VILLAGE'S ROOFING GUIDELINES. "An ice barrier is required and must extend from the lowest roof point to a point at least 24 inches inside the exterior wall line of the building. In most cases this will require 2 rows be installed before continuing with other underlayment options." The guidelines add: "Detached accessory structures (shed / garage) are exempt from this unless they are conditioned spaces. (Furnace / AC / Radiant Heat)"

Is drip edge required in Oak Park, IL?

Yes. REQUIRED BY THE VILLAGE'S ROOFING GUIDELINES. "Drip edge & or gutter apron is required on all rakes & eaves and shall overlap each other a minimum of 2"." The guidelines also state "Gutters may not be attached through drip edge." The Village's 2024 residential code presentation notes (November 2025) repeat the reminder "Drip edge required for all eaves and rakes - shingles."

Do roofing contractors need a license or registration in Oak Park, IL?

Yes.

What building code does Oak Park, IL use?

THE 2024 I-CODES, INCLUDING THE 2024 INTERNATIONAL RESIDENTIAL CODE AND THE 2024 INTERNATIONAL EXISTING BUILDING CODE, FOR PERMITS APPLIED FOR AFTER JANUARY 1, 2026. The Village's Building Permits page: "On Sept. 16, 2025, the Village of Oak Park Board of Trustees adopted the 2024 I-Codes and 2023 NEC, which applies to all permits applied for after Jan. 1, 2026," listing the Residential Code and the Existing Building Code among them. The Village's ordinance amending Chapter 7, Article 2 of the Village Code amends Section 7-2-1 to read "The 2024 International Existing Building Code (IEBC), as published by the International Code Council, is hereby adopted by the Village by reference," deletes the IEBC's Chapter 1, Part 2 (administration and enforcement), and provides that "Administration and enforcement of this code shall be governed by applicable provisions of chapter 1 of the 2024 International Building Code, as amended and adopted by the Village." For a reroof, the Village's Roofing Guidelines (dated December 26, 2025) refer to "Chapter 8 & 9 of the 2024 IRC" and cite IRC sections 908.4, 908.5 and 908.6, while the Village's 2024 residential code presentation notes list "Section 102.7.1 - Additions, Alterations or Repairs / IEBC specifically called out." This record has not read the Village's codified local amendments to the 2024 IRC, so it does not state whether they touch the roof-assemblies chapter, and it publishes no layer limit or impact-rating answer on the base code.