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Permitting Authorities / City of Petersburg - Department of Zoning and Building Inspection

Do you need a permit to replace a roof in Petersburg, MI?

Adopted code

City of Petersburg - Department of Zoning and Building Inspection

Yes, a permit is required to replace a roof in Petersburg, MI, issued by City of Petersburg - Department of Zoning and Building Inspection. The City of Petersburg's Department of Zoning and Building Inspection takes reroofs on its application for plan examination and building permit, whose type-of-improvement list includes "Tearoff/Reroof"; the form asks the contractor for a "Builders License number" and the applicant for the cost of the improvement. The Assessing & Building page says "Completed applications and payment may be mailed, dropped off at the Municipal Building during office hours or in the drop box near the front door after hours." The city's Ordinance 08-131, adopted May 5, 2008, sets the fee: "A base fee of $35.00, up to $100.00 in value of the work, plus $4.00 for each $100.00 up to and including $2,000.00", then $10.00 for each $1,000.00 or part of it above $2,000.01, with a "$35.00 Reinspection fee." The posted Building Permit Fee Schedule is that ordinance, so ask the office to confirm the current fee. The office is at the Municipal Building, 24 E. Center Street, and its published line is the city's general office number.

Roof code checklist: Petersburg, MI

ItemAnswerCode citeSourceVerified
Permit to replace a roofYespetersburgmi.gov2026-10-15
Repair permit thresholdPublishedpetersburgmi.gov2026-10-15
Layer limit / roof-overPublishedR908.3.1.1codes.iccsafe.org2026-10-15
Deck & sheathingPublishedR905.2.1codes.iccsafe.org2026-10-15
Drip edgeYesR905.2.8.5codes.iccsafe.org2026-10-15
Ice & water shieldYesR905.1.2ars.apps.lara.state.mi.us2026-10-15
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNoars.apps.lara.state.mi.us2026-10-15
Wind design criteriaNot published
Adopted codePublishedars.apps.lara.state.mi.us2026-10-15
Contractor license / registrationYeslegislature.mi.gov2026-10-15
Sales & use taxPublishedlegislature.mi.gov2026-10-15

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 Petersburg, Michigan
Jurisdiction type
city
Address
24 E. Center Street, Petersburg, MI 49270
Contact
  • url: https://petersburgmi.gov/assessing-building/
  • phone: 734-279-1210
Roofing permit required
Required
Contractor registration required
Required
Permit process note
The City of Petersburg's Department of Zoning and Building Inspection takes reroofs on its application for plan examination and building permit, whose type-of-improvement list includes "Tearoff/Reroof"; the form asks the contractor for a "Builders License number" and the applicant for the cost of the improvement. The Assessing & Building page says "Completed applications and payment may be mailed, dropped off at the Municipal Building during office hours or in the drop box near the front door after hours." The city's Ordinance 08-131, adopted May 5, 2008, sets the fee: "A base fee of $35.00, up to $100.00 in value of the work, plus $4.00 for each $100.00 up to and including $2,000.00", then $10.00 for each $1,000.00 or part of it above $2,000.01, with a "$35.00 Reinspection fee." The posted Building Permit Fee Schedule is that ordinance, so ask the office to confirm the current fee. The office is at the Municipal Building, 24 E. Center Street, and its published line is the city's general office number.
Adopted code
2015 Michigan Residential Code. This is state law and it is the same in every Michigan city, village, township and county: the state construction code act says "This act and the code apply throughout the state," and the Michigan Residential Code rule adopts "the international residential code, 2015 edition" with the state amendments in R 408.30500 to R 408.30547g. A 2021 edition was filed with the secretary of state in 2025 but has not taken effect. On July 7, 2025 the Michigan Court of Claims entered a stipulated order in Home Builders Assoc et al. v LARA et al., and the Michigan Department of Licensing and Regulatory Affairs (LARA) says that while that order remains in place "the 2015 versions of the IRC and residential provisions of the IECC standards currently adopted, in part, by each rule set will remain valid and in effect." LARA's Statewide Jurisdiction List names the City of Petersburg as its own building code enforcer, and the city's Ordinance 2013-02 designates its Building Official as the enforcing agency under the state construction code act. The City of Petersburg's Ordinance 93 (adopted November 4, 1996, as printed in its list of active local ordinances) adopts "The BOCA National Building Code, Thirteenth Edition, 1996"; this directory has not read that text, and whether the codified reference has any effect today is not decided here. This record states the 2015 Michigan Residential Code, which the state construction code act applies throughout the state ("This act and the code apply throughout the state," MCL 125.1508a) and which LARA says remains in effect while the Court of Claims order of July 7, 2025 stands. The City of Petersburg has published no statement naming the edition it enforces; its building permit application, read 2026-10-15, names no code edition.
Drip edge
Required — Required on asphalt shingle roofs by state law. Michigan makes no amendment to the drip edge rule of the 2015 International Residential Code, Section R905.2.8.5, which applies as published: "A drip edge shall be provided at eaves and rake edges of shingle roofs." Segments overlap by at least 2 inches, the drip edge extends at least 1/4 inch below the roof sheathing and at least 2 inches back onto the deck, it is fastened at no more than 12 inches on center, and underlayment goes over it at the eaves and under it at the rakes. A reroof is held to the same rule, because "Materials and methods of application used for re-covering or replacing an existing roof covering shall comply with the requirements of Chapter 9" (R908.1). The City of Petersburg's list of active local ordinances and its building permit page were read for a local rule and state nothing further on drip edge. Ordinance 93 of the City of Petersburg adopts the BOCA National Building Code, Thirteenth Edition, 1996; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the City of Petersburg has published no statement naming the edition it enforces; the BOCA National Building Code, Thirteenth Edition, 1996 text was not read (see adopted_code). About drip edge
Ice & water shield
Required — Required everywhere in Michigan by state law. Michigan fills in the climatic design table of the 2015 code once for the whole state (Rule 516, Table R301.2(1)), and its ice barrier underlayment column reads Yes. The state footnote calls for Yes "for areas where the average daily temperature in January is 25 degrees Fahrenheit" or less, or where ice damming has caused damage. The base code then requires an ice barrier "for asphalt shingles, metal roof shingles, mineral-surfaced roll roofing, slate and slate-type shingles, wood shingles and wood shakes," running "from the lowest edges of all roof surfaces to a point not less than 24 inches (610 mm) inside the exterior wall line of the building" (R905.1.2). Detached accessory structures without conditioned floor area are exempt. On a tear-off, an existing ice barrier that is adhered to the deck may stay and be covered with an additional layer (R908.3, Exception). The City of Petersburg's list of active local ordinances and its building permit page were read for a local rule and state nothing further on ice barrier. Ordinance 93 of the City of Petersburg adopts the BOCA National Building Code, Thirteenth Edition, 1996; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the City of Petersburg has published no statement naming the edition it enforces; the BOCA National Building Code, Thirteenth Edition, 1996 text was not read (see adopted_code). About ice & water barrier
Impact-resistant roofing
Not required — No impact-resistance requirement under state law. The 2015 Michigan Residential Code was searched in full and has no hail or impact rating rule for roof coverings: the words hail, impact and UL 2218 do not appear in it, and none of them appears in the roof assemblies chapter of the base 2015 International Residential Code either. Michigan applies one code statewide ("This act and the code apply throughout the state."), and the act gives the power to amend it to the state director, who adopts the model codes "with amendments, additions, or deletions as the director determines appropriate." The City of Petersburg's list of active local ordinances and its building permit page were read for a local rule and state nothing further on impact resistance; the BOCA code text adopted by Ordinance 93 was not read.
Repair permit threshold
The City of Petersburg's application for plan examination and building permit lists "Tearoff/Reroof" as its own type of improvement, separate from "Repair, replacement", so the city's form treats a reroof as permit work, and the city's pages state no exemption for it. Under state law, "A building permit is not required for ordinary repairs of a building or structure." (MCL 125.1510), without a definition of ordinary repairs.
Roof layer limit / recover
Two layers at most, under state law. Michigan builds one- and two-family homes to the 2015 Michigan Residential Code, which adopts the 2015 International Residential Code and makes no amendment to its reroofing section, Section R908; the Michigan rule set was searched in full and R908 does not appear in it. The base section therefore applies as the International Code Council publishes it. Section R908.3.1.1 lists the conditions under which a new roof may not be laid over an existing one, and the third is "Where the existing roof has two or more applications of any type of roof covering." One existing layer may be covered once; a roof that already carries two layers is torn off to the deck. The same section also bars covering a roof that is water soaked or too deteriorated to serve as a base, and covering "slate, clay, cement or asbestos-cement tile." Locally, the City of Petersburg's list of active local ordinances, updated 9-9-2026, was read. Its Ordinance 14 sets a minimum dwelling standard under which a roof must be "reasonably weathertight, watertight and rodentproof" and says nothing on the number of layers, and the Ordinance 93 modifications to the BOCA code printed in the list (Sections 101.1, 112.3.1, 116.4, 117.2 and 3408.2) do not concern roofing; the BOCA code text itself was not read, and the city's building permit page states no layer rule. Ordinance 93 of the City of Petersburg adopts the BOCA National Building Code, Thirteenth Edition, 1996; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the City of Petersburg has published no statement naming the edition it enforces; the BOCA National Building Code, Thirteenth Edition, 1996 text was not read (see adopted_code).
Deck & sheathing requirements
State law, from the base code. Michigan makes no amendment to the roof sheathing section of the 2015 International Residential Code, Section R803, which does not appear in the Michigan rule set, so it applies as published. Lumber roof sheathing follows Table R803.1: over rafters or beams 24 inches apart it must be at least 5/8 inch net thick. Wood structural panels must be identified "for grade, bond classification and performance category by a grade mark or certificate of inspection issued by an approved agency," and their spans may not exceed "the values set forth in Table R503.2.1.1(1), or APA E30." For a shingle roof the base code adds that "Asphalt shingles shall be fastened to solidly sheathed decks" (R905.2.1), and on any reroof "The structural roof components shall be capable of supporting the roof covering system" (R908.2). The City of Petersburg's list of active local ordinances and its building permit page were read for a local rule and state nothing further on roof sheathing. Ordinance 93 of the City of Petersburg adopts the BOCA National Building Code, Thirteenth Edition, 1996; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the City of Petersburg has published no statement naming the edition it enforces; the BOCA National Building Code, Thirteenth Edition, 1996 text was not read (see adopted_code).
Sales & use tax
6%, statewide, with no local add-on. This is state law: the General Sales Tax Act sets the tax "equal to 6% of the gross proceeds of the business," the Use Tax Act sets "a total combined rate equal to 6%," and the Michigan Department of Treasury says "Michigan does not allow city or local units to impose sales tax." On a roofing job the roofer is the taxpayer on materials, because the Use Tax Act counts as a consumer "A person acquiring tangible personal property if engaged in the business of constructing, altering, repairing, or improving the real estate of others." Nothing on the City of Petersburg's Assessing & Building page changes this.

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The City of Petersburg's Department of Zoning and Building Inspection, at the Municipal Building at 24 E. Center Street in Petersburg, Monroe County, issues building permits on the city's own application, and the city's Ordinance 2013-02 designates its Building Official as the enforcing agency under the state construction code act. The city's permit application lists "Tearoff/Reroof" as a type of improvement, and its Ordinance 08-131 sets the building permit fee. Michigan's single state construction code applies, and for houses that is the 2015 Michigan Residential Code.

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Sources

Roofing questions: Petersburg, MI

Do you need a permit to replace a roof in Petersburg, MI?

Yes, a permit is required to replace a roof in Petersburg, MI. The City of Petersburg's application for plan examination and building permit lists "Tearoff/Reroof" as its own type of improvement, separate from "Repair, replacement", so the city's form treats a reroof as permit work, and the city's pages state no exemption for it. Under state law, "A building permit is not required for ordinary repairs of a building or structure." (MCL 125.1510), without a definition of ordinary repairs.

Is ice & water shield required in Petersburg, MI?

Yes. Required everywhere in Michigan by state law. Michigan fills in the climatic design table of the 2015 code once for the whole state (Rule 516, Table R301.2(1)), and its ice barrier underlayment column reads Yes. The state footnote calls for Yes "for areas where the average daily temperature in January is 25 degrees Fahrenheit" or less, or where ice damming has caused damage. The base code then requires an ice barrier "for asphalt shingles, metal roof shingles, mineral-surfaced roll roofing, slate and slate-type shingles, wood shingles and wood shakes," running "from the lowest edges of all roof surfaces to a point not less than 24 inches (610 mm) inside the exterior wall line of the building" (R905.1.2). Detached accessory structures without conditioned floor area are exempt. On a tear-off, an existing ice barrier that is adhered to the deck may stay and be covered with an additional layer (R908.3, Exception). The City of Petersburg's list of active local ordinances and its building permit page were read for a local rule and state nothing further on ice barrier. Ordinance 93 of the City of Petersburg adopts the BOCA National Building Code, Thirteenth Edition, 1996; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the City of Petersburg has published no statement naming the edition it enforces; the BOCA National Building Code, Thirteenth Edition, 1996 text was not read (see adopted_code).

Is drip edge required in Petersburg, MI?

Yes. Required on asphalt shingle roofs by state law. Michigan makes no amendment to the drip edge rule of the 2015 International Residential Code, Section R905.2.8.5, which applies as published: "A drip edge shall be provided at eaves and rake edges of shingle roofs." Segments overlap by at least 2 inches, the drip edge extends at least 1/4 inch below the roof sheathing and at least 2 inches back onto the deck, it is fastened at no more than 12 inches on center, and underlayment goes over it at the eaves and under it at the rakes. A reroof is held to the same rule, because "Materials and methods of application used for re-covering or replacing an existing roof covering shall comply with the requirements of Chapter 9" (R908.1). The City of Petersburg's list of active local ordinances and its building permit page were read for a local rule and state nothing further on drip edge. Ordinance 93 of the City of Petersburg adopts the BOCA National Building Code, Thirteenth Edition, 1996; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the City of Petersburg has published no statement naming the edition it enforces; the BOCA National Building Code, Thirteenth Edition, 1996 text was not read (see adopted_code).

Can you roof over an existing roof in Petersburg, MI?

Two layers at most, under state law. Michigan builds one- and two-family homes to the 2015 Michigan Residential Code, which adopts the 2015 International Residential Code and makes no amendment to its reroofing section, Section R908; the Michigan rule set was searched in full and R908 does not appear in it. The base section therefore applies as the International Code Council publishes it. Section R908.3.1.1 lists the conditions under which a new roof may not be laid over an existing one, and the third is "Where the existing roof has two or more applications of any type of roof covering." One existing layer may be covered once; a roof that already carries two layers is torn off to the deck. The same section also bars covering a roof that is water soaked or too deteriorated to serve as a base, and covering "slate, clay, cement or asbestos-cement tile." Locally, the City of Petersburg's list of active local ordinances, updated 9-9-2026, was read. Its Ordinance 14 sets a minimum dwelling standard under which a roof must be "reasonably weathertight, watertight and rodentproof" and says nothing on the number of layers, and the Ordinance 93 modifications to the BOCA code printed in the list (Sections 101.1, 112.3.1, 116.4, 117.2 and 3408.2) do not concern roofing; the BOCA code text itself was not read, and the city's building permit page states no layer rule. Ordinance 93 of the City of Petersburg adopts the BOCA National Building Code, Thirteenth Edition, 1996; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the City of Petersburg has published no statement naming the edition it enforces; the BOCA National Building Code, Thirteenth Edition, 1996 text was not read (see adopted_code).

Do roofing contractors need a license or registration in Petersburg, MI?

Yes.

What building code does Petersburg, MI use?

2015 Michigan Residential Code. This is state law and it is the same in every Michigan city, village, township and county: the state construction code act says "This act and the code apply throughout the state," and the Michigan Residential Code rule adopts "the international residential code, 2015 edition" with the state amendments in R 408.30500 to R 408.30547g. A 2021 edition was filed with the secretary of state in 2025 but has not taken effect. On July 7, 2025 the Michigan Court of Claims entered a stipulated order in Home Builders Assoc et al. v LARA et al., and the Michigan Department of Licensing and Regulatory Affairs (LARA) says that while that order remains in place "the 2015 versions of the IRC and residential provisions of the IECC standards currently adopted, in part, by each rule set will remain valid and in effect." LARA's Statewide Jurisdiction List names the City of Petersburg as its own building code enforcer, and the city's Ordinance 2013-02 designates its Building Official as the enforcing agency under the state construction code act. The City of Petersburg's Ordinance 93 (adopted November 4, 1996, as printed in its list of active local ordinances) adopts "The BOCA National Building Code, Thirteenth Edition, 1996"; this directory has not read that text, and whether the codified reference has any effect today is not decided here. This record states the 2015 Michigan Residential Code, which the state construction code act applies throughout the state ("This act and the code apply throughout the state," MCL 125.1508a) and which LARA says remains in effect while the Court of Claims order of July 7, 2025 stands. The City of Petersburg has published no statement naming the edition it enforces; its building permit application, read 2026-10-15, names no code edition.