The Roofing Book

Permitting Authorities / Charter Township of Lyon - Building Department

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

Adopted code

Charter Township of Lyon - Building Department

No, Charter Township of Lyon, MI does not require a permit for like-for-like roof replacement (Charter Township of Lyon - Building Department). No roofing permit is required by the Lyon Township Building Department for ordinary roof work, on its own statement of May 8, 2025: "Effective immediately, the Lyon Township Building Department will no longer require permits for roofing. This policy revision does not apply to any work that includes framing/structural repairs or alterations; such work requires permits/inspections." A roof job that touches framing or structure goes back into the permit process, and the code still applies to all roofing: "All roofing work is still required to be performed in accordance with applicable code requirements and manufacturer specifications; this has not changed." An owner or roofer who wants a permit can still get one: "For those who wish to obtain roofing permits/inspections despite this change, the Lyon Township Building Department will offer this service," with "Open roof and final inspections" done "via onsite inspection, photo-evidence, or a combination thereof." State law requires an application "to the appropriate enforcing agency for a building permit" before construction and says "A building permit is not required for ordinary repairs of a building or structure," without defining ordinary repairs, and Chapter 10 of the Township Code adopts the state construction code without naming roof work either way. The no-permit line is the department's stated practice; this record does not decide whether it is the department's reading of the ordinary-repairs relief. Chapter 10 of the Township Code says permit fees are "adopted by resolution of the township board from time to time"; the department's permit pages read for this record publish no fee schedule. Where a permit is needed, applications are filled out online and printed: "you cannot submit these applications via email ; only hard copies are accepted," and the department asks for three weeks to process building permits. The Building Department is at 58000 Grand River Avenue, New Hudson, MI 48165, phone 248-437-2252, open Monday through Thursday, 7:30 a.m. to 5:30 p.m., closed Fridays.

Roof code checklist: Charter Township of Lyon, MI

ItemAnswerCode citeSourceVerified
Permit to replace a roofNolyontwp.org2026-10-03
Repair permit thresholdPublishedlyontwp.org2026-10-03
Layer limit / roof-overPublishedR908.3.1.1codes.iccsafe.org2026-10-03
Deck & sheathingPublishedR905.2.1codes.iccsafe.org2026-10-03
Drip edgeYesR905.2.8.5codes.iccsafe.org2026-10-03
Ice & water shieldYesR905.1.2ars.apps.lara.state.mi.us2026-10-03
Mid-roof inspectionNot published
Impact-resistant (Class 4) roofingNoars.apps.lara.state.mi.us2026-10-03
Wind design criteriaNot published
Adopted codePublishedSec. 10-1ars.apps.lara.state.mi.us2026-10-03
Contractor license / registrationYeslegislature.mi.gov2026-10-03
Sales & use taxPublishedlegislature.mi.gov2026-10-03

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
Charter Township of Lyon, Michigan
Jurisdiction type
city
Address
58000 Grand River Avenue, New Hudson, MI 48165
Contact
  • url: https://www.lyontwp.org/departments/building_department/index.php
  • phone: 248-437-2252
Roofing permit required
Not 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 Building Department pages and Chapter 10 of the Township Code read for this record set no township contractor registration for building work; Chapter 10 says of electrical work that the state is responsible for licensing.
Permit process note
No roofing permit is required by the Lyon Township Building Department for ordinary roof work, on its own statement of May 8, 2025: "Effective immediately, the Lyon Township Building Department will no longer require permits for roofing. This policy revision does not apply to any work that includes framing/structural repairs or alterations; such work requires permits/inspections." A roof job that touches framing or structure goes back into the permit process, and the code still applies to all roofing: "All roofing work is still required to be performed in accordance with applicable code requirements and manufacturer specifications; this has not changed." An owner or roofer who wants a permit can still get one: "For those who wish to obtain roofing permits/inspections despite this change, the Lyon Township Building Department will offer this service," with "Open roof and final inspections" done "via onsite inspection, photo-evidence, or a combination thereof." State law requires an application "to the appropriate enforcing agency for a building permit" before construction and says "A building permit is not required for ordinary repairs of a building or structure," without defining ordinary repairs, and Chapter 10 of the Township Code adopts the state construction code without naming roof work either way. The no-permit line is the department's stated practice; this record does not decide whether it is the department's reading of the ordinary-repairs relief. Chapter 10 of the Township Code says permit fees are "adopted by resolution of the township board from time to time"; the department's permit pages read for this record publish no fee schedule. Where a permit is needed, applications are filled out online and printed: "you cannot submit these applications via email ; only hard copies are accepted," and the department asks for three weeks to process building permits. The Building Department is at 58000 Grand River Avenue, New Hudson, MI 48165, phone 248-437-2252, open Monday through Thursday, 7:30 a.m. to 5:30 p.m., closed Fridays.
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 Charter Township of Lyon as its own building code enforcer. Section 10-1 of the Township Code (Ord. No. 12-24, 12-2-2024) says the township "hereby assumes responsibility for the administration and enforcement within the township" of the state construction code act and the codes "promulgated as the State Construction Code," and the Building Department lists "Michigan Residential Code 2015" among its current construction codes in effect.
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). Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition) and states 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). Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition) and adds no ice barrier rule of its own. 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." Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition); it adopts the state construction code, and no UL 2218 or Class 4 impact requirement appears in it.
Repair permit threshold
The Lyon Township Building Department's own words, posted May 8, 2025 on its Roofs page and live when read on 2026-10-03: "Effective immediately, the Lyon Township Building Department will no longer require permits for roofing. This policy revision does not apply to any work that includes framing/structural repairs or alterations; such work requires permits/inspections." The condition is a fact about the work: a reroof that includes framing or structural repairs or alterations still needs a permit and inspections. The department adds that "All roofing work is still required to be performed in accordance with applicable code requirements and manufacturer specifications." State law requires an application "to the appropriate enforcing agency for a building permit" before construction and says "A building permit is not required for ordinary repairs of a building or structure," without defining ordinary repairs, and Chapter 10 of the Township Code adopts the state construction code without naming roof work either way. The no-permit line is the department's stated practice; this record does not decide whether it is the department's reading of the ordinary-repairs relief.
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." Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition); it adopts the state construction code and touches nothing in the reroofing section, so the state limit applies unchanged. The township no longer requires a permit for ordinary roofing, but says "All roofing work is still required to be performed in accordance with applicable code requirements."
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). Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition) and states nothing further on roof sheathing; the Building Department says roof work that "includes framing/structural repairs or alterations" still requires permits and inspections.
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." The Charter Township of Lyon adds no sales tax of its own, so 6% is the whole rate on a job there.

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The Charter Township of Lyon's Building Department, at 58000 Grand River Avenue in New Hudson, issues building permits and inspects construction in the township, and since May 8, 2025 it says it no longer requires permits for roofing unless the work includes framing or structural repairs. LARA's Statewide Jurisdiction List names the Charter Township of Lyon as its own building code enforcer. Michigan applies one residential code statewide, the 2015 Michigan Residential Code, so the roofing rules below are state law that the township enforces.

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Roofing questions: Charter Township of Lyon, MI

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

No, Charter Township of Lyon, MI does not require a permit to replace a roof. The Lyon Township Building Department's own words, posted May 8, 2025 on its Roofs page and live when read on 2026-10-03: "Effective immediately, the Lyon Township Building Department will no longer require permits for roofing. This policy revision does not apply to any work that includes framing/structural repairs or alterations; such work requires permits/inspections." The condition is a fact about the work: a reroof that includes framing or structural repairs or alterations still needs a permit and inspections. The department adds that "All roofing work is still required to be performed in accordance with applicable code requirements and manufacturer specifications." State law requires an application "to the appropriate enforcing agency for a building permit" before construction and says "A building permit is not required for ordinary repairs of a building or structure," without defining ordinary repairs, and Chapter 10 of the Township Code adopts the state construction code without naming roof work either way. The no-permit line is the department's stated practice; this record does not decide whether it is the department's reading of the ordinary-repairs relief.

Is ice & water shield required in Charter Township of Lyon, 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). Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition) and adds no ice barrier rule of its own.

Is drip edge required in Charter Township of Lyon, 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). Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition) and states nothing further on drip edge.

Can you roof over an existing roof in Charter Township of Lyon, 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." Lyon Township's own building ordinance, Chapter 10 of the Township Code (Buildings and Building Regulations), was read in full (adoption of the state construction code, referenced codes, fees, the board of appeals, cash deposits, flood-prone areas, electrical work, the property maintenance code and its amendments, and demolition); it adopts the state construction code and touches nothing in the reroofing section, so the state limit applies unchanged. The township no longer requires a permit for ordinary roofing, but says "All roofing work is still required to be performed in accordance with applicable code requirements."

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

Yes.

What building code does Charter Township of Lyon, 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 Charter Township of Lyon as its own building code enforcer. Section 10-1 of the Township Code (Ord. No. 12-24, 12-2-2024) says the township "hereby assumes responsibility for the administration and enforcement within the township" of the state construction code act and the codes "promulgated as the State Construction Code," and the Building Department lists "Michigan Residential Code 2015" among its current construction codes in effect.