The Roofing Book

Permitting Authorities / City of Mount Morris - Building Department

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

Adopted code

City of Mount Morris - Building Department

Yes, a permit is required to replace a roof in Mount Morris, MI, issued by City of Mount Morris - Building Department. In the City of Mt. Morris permits go through City Hall: the Building page says "The City of Mt. Morris contracts out all our Inspectors" and "if you are looking to apply for ANY permit please contact Mt. Morris City Hall for information." The city publishes nothing specific to roof work, so this record cannot say whether it treats a given reroof as an ordinary repair; call City Hall before the job. The city's building permit application is headed "APPLICATION FOR BUILDING PERMIT AND PLAN REVIEW", states that separate applications must be completed for plumbing, mechanical and electrical work, and asks for the project cost and the contractor's license number and expiration date. The fee schedule (updated 07/25/2022) lists building permit fees based on the value of construction, plus inspection fees, and has no roofing line, so confirm the current fee with City Hall. The city's Building Department page lists its City Hall at 11649 N. Saginaw St., Mt. Morris, MI 48458, telephone (810) 686-2160, open Monday 9:00AM to 8:00PM and Tuesday to Thursday 9:00AM to 5:00PM, closed daily from 12:00PM to 12:30PM. Mount Morris Township has its own building department and is not covered here.

Roof code checklist: Mount Morris, MI

ItemAnswerCode citeSourceVerified
Permit to replace a roofYescityofmtmorris.org2026-10-13
Repair permit thresholdPublishedcityofmtmorris.org2026-10-13
Layer limit / roof-overPublishedR908.3.1.1codes.iccsafe.org2026-10-13
Deck & sheathingPublishedR905.2.1codes.iccsafe.org2026-10-13
Drip edgeYesR905.2.8.5codes.iccsafe.org2026-10-13
Ice & water shieldYesR905.1.2ars.apps.lara.state.mi.us2026-10-13
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNoars.apps.lara.state.mi.us2026-10-13
Wind design criteriaNot published
Adopted codePublishedars.apps.lara.state.mi.us2026-10-13
Contractor license / registrationYeslegislature.mi.gov2026-10-13
Sales & use taxPublishedlegislature.mi.gov2026-10-13

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 Mount Morris, Genesee County, Michigan
Jurisdiction type
city
Address
11649 N. Saginaw Street, Mt. Morris, MI 48458
Contact
  • url: https://cityofmtmorris.org/building/
  • phone: 810-686-2160
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 City of Mt. Morris publishes no contractor registration or licence of its own: its building permit application asks for the contractor's license number and expiration date, and its Building page, fee schedule and Code of Ordinances name no city registration.
Permit process note
In the City of Mt. Morris permits go through City Hall: the Building page says "The City of Mt. Morris contracts out all our Inspectors" and "if you are looking to apply for ANY permit please contact Mt. Morris City Hall for information." The city publishes nothing specific to roof work, so this record cannot say whether it treats a given reroof as an ordinary repair; call City Hall before the job. The city's building permit application is headed "APPLICATION FOR BUILDING PERMIT AND PLAN REVIEW", states that separate applications must be completed for plumbing, mechanical and electrical work, and asks for the project cost and the contractor's license number and expiration date. The fee schedule (updated 07/25/2022) lists building permit fees based on the value of construction, plus inspection fees, and has no roofing line, so confirm the current fee with City Hall. The city's Building Department page lists its City Hall at 11649 N. Saginaw St., Mt. Morris, MI 48458, telephone (810) 686-2160, open Monday 9:00AM to 8:00PM and Tuesday to Thursday 9:00AM to 5:00PM, closed daily from 12:00PM to 12:30PM. Mount Morris Township has its own building department and is not covered here.
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 Mount Morris as a local building code enforcer for building, electrical, mechanical and plumbing. The City of Mt. Morris's codified Sec. 14-26 (Ord. No. 295, art. I, 6-13-88; Ord. of 8-9-99(1)) adopts "The BOCA National Building Code/1996 (13th Edition)"; 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 has published no statement naming the edition it enforces; its Building page and building permit application, read October 13, 2026, name no edition. The Code of Ordinances posted on the city's website is the April 2014 republication, current through Ordinance No. 12-06, and the ordinances the city has posted since (13-03 through 25-06) are scanned images that were not read for a building code adoption.
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 Mt. Morris's codified Sec. 14-26 adopts "The BOCA National Building Code/1996 (13th Edition)"; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the city has published no statement naming the edition it enforces; the BOCA National Building Code/1996 text was not read (see adopted_code). The City of Mt. Morris's Building page, building permit application and fee schedule, and the Building Code and Property Maintenance Code articles of its Code of Ordinances (Chapter 14) 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 City of Mt. Morris's codified Sec. 14-26 adopts "The BOCA National Building Code/1996 (13th Edition)"; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the city has published no statement naming the edition it enforces; the BOCA National Building Code/1996 text was not read (see adopted_code). The City of Mt. Morris's Building page, building permit application and fee schedule, and the Building Code and Property Maintenance Code articles of its Code of Ordinances (Chapter 14) 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 City of Mt. Morris's Building page, building permit application and fee schedule, and the Building Code and Property Maintenance Code articles of its Code of Ordinances (Chapter 14) were read for a local rule and state nothing further on impact resistance.
Repair permit threshold
The City of Mt. Morris has published nothing that applies a permit exemption to a reroof, so the general state rule supplies the requirement. Its Building page says "if you are looking to apply for ANY permit please contact Mt. Morris City Hall for information." Its application for building permit and plan review has Alteration and Repair boxes among its types of improvement and no roofing or reroof box, its fee schedule prices building permits by the value of construction (from $100.00 for a project valued up to $10,000.00) with no roofing line, and no page the city posts says whether a reroof needs a permit or names a size or dollar point below which it does not. 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." The City of Mt. Morris's codified Sec. 14-26 adopts "The BOCA National Building Code/1996 (13th Edition)"; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the city has published no statement naming the edition it enforces; the BOCA National Building Code/1996 text was not read (see adopted_code). Locally, no layer classification is declared here: the city's later ordinances, posted as scanned images, were not read, and its Building page and permit application state no layer limit.
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 Mt. Morris's codified Sec. 14-26 adopts "The BOCA National Building Code/1996 (13th Edition)"; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the city has published no statement naming the edition it enforces; the BOCA National Building Code/1996 text was not read (see adopted_code). The City of Mt. Morris's Building page, building permit application and fee schedule, and the Building Code and Property Maintenance Code articles of its Code of Ordinances (Chapter 14) 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 City of Mt. Morris's Building page, permit application or fee schedule changes this.

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The City of Mount Morris's Building Department, at City Hall at 11649 N. Saginaw Street in Mt. Morris, issues building, electrical, mechanical and plumbing permits through contracted inspectors, and its Building page asks anyone applying for any permit to contact City Hall. The State of Michigan's jurisdiction list names the City of Mount Morris as its own building code enforcer. Mount Morris Township is a separate unit with its own building department and is not covered by this record. Michigan's single state construction code applies, and for houses that is the 2015 Michigan Residential Code.

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Sources

Roofing questions: Mount Morris, MI

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

Yes, a permit is required to replace a roof in Mount Morris, MI. The City of Mt. Morris has published nothing that applies a permit exemption to a reroof, so the general state rule supplies the requirement. Its Building page says "if you are looking to apply for ANY permit please contact Mt. Morris City Hall for information." Its application for building permit and plan review has Alteration and Repair boxes among its types of improvement and no roofing or reroof box, its fee schedule prices building permits by the value of construction (from $100.00 for a project valued up to $10,000.00) with no roofing line, and no page the city posts says whether a reroof needs a permit or names a size or dollar point below which it does not. 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 Mount Morris, 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 Mt. Morris's codified Sec. 14-26 adopts "The BOCA National Building Code/1996 (13th Edition)"; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the city has published no statement naming the edition it enforces; the BOCA National Building Code/1996 text was not read (see adopted_code). The City of Mt. Morris's Building page, building permit application and fee schedule, and the Building Code and Property Maintenance Code articles of its Code of Ordinances (Chapter 14) were read for a local rule and state nothing further on ice barrier.

Is drip edge required in Mount Morris, 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 Mt. Morris's codified Sec. 14-26 adopts "The BOCA National Building Code/1996 (13th Edition)"; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the city has published no statement naming the edition it enforces; the BOCA National Building Code/1996 text was not read (see adopted_code). The City of Mt. Morris's Building page, building permit application and fee schedule, and the Building Code and Property Maintenance Code articles of its Code of Ordinances (Chapter 14) were read for a local rule and state nothing further on drip edge.

Can you roof over an existing roof in Mount Morris, 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." The City of Mt. Morris's codified Sec. 14-26 adopts "The BOCA National Building Code/1996 (13th Edition)"; this field states the 2015 Michigan Residential Code, which the state act applies throughout the state; the city has published no statement naming the edition it enforces; the BOCA National Building Code/1996 text was not read (see adopted_code). Locally, no layer classification is declared here: the city's later ordinances, posted as scanned images, were not read, and its Building page and permit application state no layer limit.

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

Yes.

What building code does Mount Morris, 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 Mount Morris as a local building code enforcer for building, electrical, mechanical and plumbing. The City of Mt. Morris's codified Sec. 14-26 (Ord. No. 295, art. I, 6-13-88; Ord. of 8-9-99(1)) adopts "The BOCA National Building Code/1996 (13th Edition)"; 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 has published no statement naming the edition it enforces; its Building page and building permit application, read October 13, 2026, name no edition. The Code of Ordinances posted on the city's website is the April 2014 republication, current through Ordinance No. 12-06, and the ordinances the city has posted since (13-03 through 25-06) are scanned images that were not read for a building code adoption.