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Permitting Authorities / Napoleon Township - Building Department

Do you need a permit to replace a roof in Township of Napoleon, MI?

Adopted code

Napoleon Township - Building Department

Yes, a permit is required to replace a roof in Township of Napoleon, MI, issued by Napoleon Township - Building Department. In Napoleon Township a roof replacement is a permit job: the Building Department's page says "All construction in Napoleon Township requires a building permit, including roof replacement." The township's Roof-Windows-Interior Remodels-Etc Application lists "Reroof (2 Insp)" at a "Fee Schedule: $90.00 Per Inspections", which is two inspections for a reroof, and the permit page says roofing permits "will be issued within 24 hours except for weekends and holidays" and "Payment must be made at the time the permit is issued." Applications may be printed from the township's permit forms page and emailed to the Building Department, mailed to Napoleon Township Building Dept., P.O. Box 385, Napoleon, MI 49261, or dropped off at the township office, and the building page says "Completed permits can be mailed or faxed to our office." The building page gives the Building Department's hours as Monday through Thursday, 7:30am to 3:00pm, and says inspections are scheduled by the permit holder by calling the building and mechanical inspector; the instructions say "Most inspections will be completed within twenty-four to forty eight hours after the request is made (excluding weekends and holidays)." The township says "No permits will be issued if the property has an expired permit attached. Any expired permit will require the $55.00 renewal fee paid to reinstate the permit for a final inspection.".

Roof code checklist: Township of Napoleon, MI

ItemAnswerCode citeSourceVerified
Permit to replace a roofYesnapoleontownship.us2026-10-11
Repair permit thresholdPublishednapoleontownship.us2026-10-11
Layer limit / roof-overPublishedR908.3.1.1codes.iccsafe.org2026-10-11
Deck & sheathingPublishedR905.2.1codes.iccsafe.org2026-10-11
Drip edgeYesR905.2.8.5codes.iccsafe.org2026-10-11
Ice & water shieldYesR905.1.2ars.apps.lara.state.mi.us2026-10-11
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNoars.apps.lara.state.mi.us2026-10-11
Wind design criteriaNot published
Adopted codePublishedars.apps.lara.state.mi.us2026-10-11
Contractor license / registrationYeslegislature.mi.gov2026-10-11
Sales & use taxPublishedlegislature.mi.gov2026-10-11

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
Township of Napoleon, Michigan
Jurisdiction type
city
Address
6755 Brooklyn Road, Napoleon, MI 49261
Contact
  • url: https://napoleontownship.us/departments/building/index.php
  • phone: 517-536-8694 ext. 208
Roofing permit required
Required
Contractor registration required
Required
Registration details
  • state_level: Michigan licenses residential maintenance and alteration contractors under the Occupational Code, and that licence "includes the following crafts and trades" among which it names roofing (MCL 339.2404(3)); "A person shall not engage in or attempt to engage in the practice of an occupation regulated under this act" without the licence (MCL 339.601(1)). MCL 339.2403 lists who may work without one, including a project whose "aggregate contract price for the labor, material, and any other items for the undertaking or project is less than $600.00". This record does not decide whether a given roofer falls inside an exemption.
  • city_level: The township's Roof-Windows-Interior Remodels-Etc Application says "Unregistered or expired contractors-add $10.00" and to submit an updated licence and insurance, and asks for the contractor's licence number, expiration date, MESC employer number and federal ID; the township's pages read publish no licence class, bond or examination of the township's own. This record does not decide whether a given roofer falls inside a state exemption.
Permit process note
In Napoleon Township a roof replacement is a permit job: the Building Department's page says "All construction in Napoleon Township requires a building permit, including roof replacement." The township's Roof-Windows-Interior Remodels-Etc Application lists "Reroof (2 Insp)" at a "Fee Schedule: $90.00 Per Inspections", which is two inspections for a reroof, and the permit page says roofing permits "will be issued within 24 hours except for weekends and holidays" and "Payment must be made at the time the permit is issued." Applications may be printed from the township's permit forms page and emailed to the Building Department, mailed to Napoleon Township Building Dept., P.O. Box 385, Napoleon, MI 49261, or dropped off at the township office, and the building page says "Completed permits can be mailed or faxed to our office." The building page gives the Building Department's hours as Monday through Thursday, 7:30am to 3:00pm, and says inspections are scheduled by the permit holder by calling the building and mechanical inspector; the instructions say "Most inspections will be completed within twenty-four to forty eight hours after the request is made (excluding weekends and holidays)." The township says "No permits will be issued if the property has an expired permit attached. Any expired permit will require the $55.00 renewal fee paid to reinstate the permit for a final inspection."
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." The State of Michigan's Statewide Jurisdiction List names the Township of Napoleon as its own building code enforcer. The township's Energy Worksheet, linked from its permit page, is headed "2015 Michigan Residential Code" and asks the applicant to show compliance with "the applicable energy efficiency provisions of the 2015 Michigan Residential Code", and its Zoning Ordinance (amended 6/27/2017) says construction is "subject to the provisions of the State Construction Code as adopted and enforced by the Township of Napoleon" and refers once to the "Napoleon Township Building Code" without posting or dating it; none of the township instruments read names an older dwelling 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 township's building page, permit page, building permit instructions and posted ordinances were read for a local rule and state nothing further on drip edge. 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 township's building page, permit page, building permit instructions and posted ordinances were read for a local rule and state nothing further on ice barrier. 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 township's building page, permit page, building permit instructions and posted ordinances were read for a local rule and state nothing further on impact resistance.
Repair permit threshold
No size or cost threshold is published. The Napoleon Township Building Department's page says "All construction in Napoleon Township requires a building permit, including roof replacement." Its Roof-Windows-Interior Remodels-Etc Application lists "Reroof (2 Insp)" and "Roof Alteration (2 Insp)" as types of improvement with a "Fee Schedule: $90.00 Per Inspections", and the permit page says "Mechanical, Electrical , Plumbing & Roofing Permits will be issued within 24 hours except for weekends and holidays." 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; the township's own statement is the one that reaches roof work. For a small roof repair, call the Building Department at 517-536-8694 ext. 208 before starting.
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 township's list of posted ordinances has no building code ordinance. Its Zoning Ordinance refers to the "Napoleon Township Building Code", but no such code is posted, so no local roofing rule could be read and this record declares no layer classification. The township's building page, permit page and building permit instructions state no layer rule.
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 township's building page, permit page, building permit instructions and posted ordinances were read for a local rule and state nothing further on roof sheathing.
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 Napoleon Township building page or permit page changes this.

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The Napoleon Township Building Department, at the township office at 6755 Brooklyn Road in Napoleon, takes building permit applications and has separate inspectors for building and mechanical, electrical and plumbing work; its building page says "All construction in Napoleon Township requires a building permit, including roof replacement." The State of Michigan's jurisdiction list names the Township of Napoleon as its own building code enforcer. Michigan's single state construction code applies, and for houses that is the 2015 Michigan Residential Code.

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Sources

Roofing questions: Township of Napoleon, MI

Do you need a permit to replace a roof in Township of Napoleon, MI?

Yes, a permit is required to replace a roof in Township of Napoleon, MI. No size or cost threshold is published. The Napoleon Township Building Department's page says "All construction in Napoleon Township requires a building permit, including roof replacement." Its Roof-Windows-Interior Remodels-Etc Application lists "Reroof (2 Insp)" and "Roof Alteration (2 Insp)" as types of improvement with a "Fee Schedule: $90.00 Per Inspections", and the permit page says "Mechanical, Electrical , Plumbing & Roofing Permits will be issued within 24 hours except for weekends and holidays." 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; the township's own statement is the one that reaches roof work. For a small roof repair, call the Building Department at 517-536-8694 ext. 208 before starting.

Is ice & water shield required in Township of Napoleon, 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 township's building page, permit page, building permit instructions and posted ordinances were read for a local rule and state nothing further on ice barrier.

Is drip edge required in Township of Napoleon, 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 township's building page, permit page, building permit instructions and posted ordinances were read for a local rule and state nothing further on drip edge.

Can you roof over an existing roof in Township of Napoleon, 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 township's list of posted ordinances has no building code ordinance. Its Zoning Ordinance refers to the "Napoleon Township Building Code", but no such code is posted, so no local roofing rule could be read and this record declares no layer classification. The township's building page, permit page and building permit instructions state no layer rule.

Do roofing contractors need a license or registration in Township of Napoleon, MI?

Yes.

What building code does Township of Napoleon, 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." The State of Michigan's Statewide Jurisdiction List names the Township of Napoleon as its own building code enforcer. The township's Energy Worksheet, linked from its permit page, is headed "2015 Michigan Residential Code" and asks the applicant to show compliance with "the applicable energy efficiency provisions of the 2015 Michigan Residential Code", and its Zoning Ordinance (amended 6/27/2017) says construction is "subject to the provisions of the State Construction Code as adopted and enforced by the Township of Napoleon" and refers once to the "Napoleon Township Building Code" without posting or dating it; none of the township instruments read names an older dwelling code edition.