The Roofing Book

Permitting Authorities / Illinois / Village of Buffalo Grove Community Development Department

Do you need a permit to replace a roof in Buffalo Grove, IL?

Adopted code

Village of Buffalo Grove Community Development Department

Yes, a permit is required to replace a roof in Buffalo Grove, IL, issued by Village of Buffalo Grove Community Development Department. The Village's Roof Replacement page lists the average review time as 24 hours, a fee of "$85 and up" and a 90-day expiration. The roof permit fee is $85 for one- and two-family homes, $400 for multi-family and townhomes, and 1.25% of valuation (minimum $400) for non-residential work. The submittal needs a completed building permit application and "A detailed scope of work, including a copy of the signed contract," which "must include the type of roofing materials, sheathing, ice/water barrier, etc." A final inspection is required within 30 days of completion, with a minimum of 48 hours' notice for any inspection.

Roof code checklist: Buffalo Grove, IL

ItemAnswerCode citeSourceVerified
Permit to replace a roofYesvbg.org2026-10-17
Repair permit thresholdPublishedvbg.org2026-10-17
Layer limit / roof-overPublishedvbg.org2026-10-17
Deck & sheathingPublishedvbg.org2026-10-17
Drip edgeYesvbg.org2026-10-17
Ice & water shieldNot published
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNot published
Wind design criteriaNot published
Adopted codePublishedvbg.org2026-10-17
Contractor license / registrationYesilga.gov2026-09-18
Sales & use taxPublishedilga.gov2026-09-18

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 Buffalo Grove, Illinois
Jurisdiction type
city
Address
50 Raupp Boulevard, Buffalo Grove, IL 60089
Contact
  • url: https://www.vbg.org/353/Permits-and-Inspections
  • phone: 847-459-2530
Permit portal
Permit portal
Roofing permit required
Required
Contractor registration required
Required
Registration details
  • state_level: Illinois licenses roofing contractors statewide with no dollar threshold. 225 ILCS 335/9(2): "No work involving the construction, reconstruction, alteration, maintenance, or repair of any kind of roofing or waterproofing may be done except by a roofing contractor or a qualifying party licensed or credentialed under this Act." Under 225 ILCS 335/5(a-3), "A municipality or a county that requires a building permit may not issue a building permit to a roofing contractor unless that contractor has provided sufficient proof of current licensure as a roofing contractor by the State," and a holder of a limited license is restricted to permits for work on residential properties of 8 units or less. The Illinois Department of Financial and Professional Regulation lists "Roofing Contractor, Licensed" among the professions it licenses.
  • city_level: A VILLAGE REGISTRATION ON TOP OF THE STATE LICENSE. The Village's Roof Replacement page says "All contractors must be registered for the current calendar year with the Village."
Permit process note
The Village's Roof Replacement page lists the average review time as 24 hours, a fee of "$85 and up" and a 90-day expiration. The roof permit fee is $85 for one- and two-family homes, $400 for multi-family and townhomes, and 1.25% of valuation (minimum $400) for non-residential work. The submittal needs a completed building permit application and "A detailed scope of work, including a copy of the signed contract," which "must include the type of roofing materials, sheathing, ice/water barrier, etc." A final inspection is required within 30 days of completion, with a minimum of 48 hours' notice for any inspection.
Adopted code
THE 2018 INTERNATIONAL RESIDENTIAL CODE, AS AMENDED, PER THE VILLAGE'S OWN CODES PAGE. The Village's Building Codes page says "The Village of Buffalo Grove Building Codes include the following" and lists "2018 International Residential Code, as amended" and "2024 International Energy Conservation Code, as amended by Illinois," adding "Amendments to the codes listed above are contained in Title 15 of the Buffalo Grove Municipal Code." The Village's Roof Replacement page points to the "2018 International Residential Code" for more detail. The amendments are codified in Title 15 of the Municipal Code, which this record did not read, so it does not state whether the Village has amended the IRC's roof provisions.
Drip edge
Required — REQUIRED AT EAVES AND RAKES, PER THE VILLAGE'S OWN ROOF PAGE. The Village's Roof Replacement page lists among its construction requirements "Required drip edge on all eves and rakes" and says "Drip edge can be either wood or metal." This rests on the Village's written page; the amendments in Title 15 of the Municipal Code were not read. About drip edge
Repair permit threshold
THE VILLAGE EXEMPTS MINOR REPAIRS UNDER 100 SQUARE FEET. The Village's Roof Replacement page says "A permit is required for all roof replacements. No permit is needed to add a 2nd layer of shingles or for minor repairs of less than a total of 100 sq. ft."
Roof layer limit / recover
THE VILLAGE'S ROOF REPLACEMENT PAGE LIMITS SHINGLES TO TWO LAYERS. The page says "No more than 2 layers of shingles are allowed on any roof." It adds that "A roof recover will not be permitted 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."
Deck & sheathing requirements
The Village's Roof Replacement page requires new roof sheathing to be a minimum one-half inch thick, and says existing three-eighths inch sheathing "may remain if not compromised, rotted, deteriorated, moldy, etc." It also says new sheathing edges must be tongue and groove or supported with solid blocking or edge clips.
Sales & use tax
Illinois taxes the roofer, not the job, and the operative rate is not keyed to the Buffalo Grove job address. Under 86 Ill. Adm. Code 130.1940(c), a construction contractor "does not incur Retailers' Occupation Tax liability as to receipts from labor furnished and tangible personal property (materials and fixtures) incorporated into a structure," but "incurs Use Tax on the cost price of the tangible personal property that is incorporated into real estate," with "roofing materials" named in the rule's own list of examples. Repair and replacement are taxed identically: 130.1940(a)(3) defines "construct" to include "repair, renovate or remodel." The Illinois Department of Revenue states the Use Tax rate as "6.25% of the purchase price or fair market value, whichever is greater." Where the contractor buys for resale, the local tax follows "the place of business at or from which the contractor or builder handles the transaction" (130.2075(b)(3)), so the combined rate on materials is the supply house's or the contractor's, which this record does not pin down. The authoritative lookup is the Illinois Department of Revenue's MyTax Illinois Tax Rate Finder.

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Building permits in the Village of Buffalo Grove, Illinois, in Lake County and Cook County, are handled by the Village's Community Development Department at Village Hall, 50 Raupp Boulevard. The Illinois Capital Development Board says "The State has not adopted a building code for repairs to existing single family residences," so Buffalo Grove's roofing rules are its own: the Village's Building Codes page lists the 2018 International Residential Code, as amended, with the amendments contained in Title 15 of the Village's Municipal Code. The Village's Roof Replacement page says a permit is required for all roof replacements; this listing covers the office's contact details, the Village's own statements on code and permits, and the rules state law sets for every Illinois roofer.

Working an insurance claim in Buffalo Grove, IL? 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).

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Sources

Roofing questions: Buffalo Grove, IL

Do you need a permit to replace a roof in Buffalo Grove, IL?

Yes, a permit is required to replace a roof in Buffalo Grove, IL. THE VILLAGE EXEMPTS MINOR REPAIRS UNDER 100 SQUARE FEET. The Village's Roof Replacement page says "A permit is required for all roof replacements. No permit is needed to add a 2nd layer of shingles or for minor repairs of less than a total of 100 sq. ft."

Is drip edge required in Buffalo Grove, IL?

Yes. REQUIRED AT EAVES AND RAKES, PER THE VILLAGE'S OWN ROOF PAGE. The Village's Roof Replacement page lists among its construction requirements "Required drip edge on all eves and rakes" and says "Drip edge can be either wood or metal." This rests on the Village's written page; the amendments in Title 15 of the Municipal Code were not read.

Can you roof over an existing roof in Buffalo Grove, IL?

THE VILLAGE'S ROOF REPLACEMENT PAGE LIMITS SHINGLES TO TWO LAYERS. The page says "No more than 2 layers of shingles are allowed on any roof." It adds that "A roof recover will not be permitted 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."

Do roofing contractors need a license or registration in Buffalo Grove, IL?

Yes.

What building code does Buffalo Grove, IL use?

THE 2018 INTERNATIONAL RESIDENTIAL CODE, AS AMENDED, PER THE VILLAGE'S OWN CODES PAGE. The Village's Building Codes page says "The Village of Buffalo Grove Building Codes include the following" and lists "2018 International Residential Code, as amended" and "2024 International Energy Conservation Code, as amended by Illinois," adding "Amendments to the codes listed above are contained in Title 15 of the Buffalo Grove Municipal Code." The Village's Roof Replacement page points to the "2018 International Residential Code" for more detail. The amendments are codified in Title 15 of the Municipal Code, which this record did not read, so it does not state whether the Village has amended the IRC's roof provisions.