Jurisdiction
Clinton County, Michigan (13 townships and the cities and villages inside them, on the county building program)
Address
100 E. State Street, Suite 1300, St. Johns, MI 48879
Contact
- url: https://www.clinton-county.org/161/Building-Department
- phone: 989-224-5181
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.
- county_level: Clinton County registers contractors with its Building Department. Its Building Department page says that a contractor not registered with the county submits the Contractor Registration Form from the Forms Center, and "Additionally, there is a $15 fee for registration." The county's building permit applications also ask the contractor for a license number and expiration date, a federal ID number, an MESC employer number and workers compensation insurance details, or the reason for exemption.
Permit process note
In Clinton County a reroof is permit work with its own application. The Building Department's Forms Center lists a Single Inspection application described as "Single inspection for roofing, siding, windows, or new occupancy", the Single Inspection Permit Application lists "Re-Roof (>3 square)" with a permit fee of $70 (the form adds 3% for a credit or debit card), and the Building Department page says "Online building permits are for roofing, siding, or windows/doors (3 or more) only." and links a "Roofing, Siding, & Windows Permit" application on BS&A Online, where permits can be applied for and paid. The forms say to email applications and plans to the department; it also accepts them in person or by mail, and the page says "review may take between 10-14 BUSINESS days as we enter into a busy building season." To schedule an inspection "please give 24-hour notice by calling and leaving a message on our inspection line at (989) 224-5183 before 4 PM the business day BEFORE you need the inspection." The Single Inspection form has the applicant certify compliance with the 2015 Michigan Building Code. The county's jurisdiction list says "The County holds Building jurisdiction for the 13 townships, 2 cities, and 6 villages located in Clinton County" and names the locations it does not cover, so a roofer in Bath Charter Township, the Village of Bath, the City of DeWitt, DeWitt Charter Township or Watertown Charter Township applies to that unit instead. The office is at 100 E. State Street, Suite 1300, St. Johns, MI 48879, 989-224-5181.
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 assigns building code enforcement in 20 units to Clinton County. The Building Department's page says it administers "the State of Michigan Building Codes", and its Single Inspection Permit Application has the applicant "certify that the information provided on this application is accurate, that I will comply with the 2015 Michigan Building Code (MBC)".
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 Clinton County Building Department's pages and forms 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 Clinton County Building Department's pages and forms 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 Clinton County Building Department's pages and forms state no impact rule.
Repair permit threshold
The Clinton County Building Department treats roof work as its own permit type. Its Forms Center lists a "Single Inspection" application described as "Single inspection for roofing, siding, windows, or new occupancy", and the Single Inspection Permit Application lists "Re-Roof (>3 square)" with a "Permit Fee: $ 70". Its Building Department page says "Online building permits are for roofing, siding, or windows/doors (3 or more) only." The pages and forms read do not say what applies to a reroof of 3 squares or less. The state part: Michigan's construction code act says "A building permit is not required for ordinary repairs of a building or structure" and does not define ordinary repairs; the county has published nothing applying that relief to roof work. For a small repair, ask the department at 989-224-5181 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." The Clinton County Building Department's pages and forms state no layer rule of their own. The county's Building Department and Forms Center pages post a soil erosion ordinance and no building ordinance, so no county building ordinance was read for this record.
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 Clinton County Building Department's pages and forms state nothing further on roof decks or 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." The same 6% applies throughout Clinton County.