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

Roofing questions: Lapeer, MI

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

Yes, a permit is required to replace a roof in Lapeer, MI. The City of Lapeer's Building Permit Application and Plan Review (revised 9/15/26) lists ROOF as its own choice under residential uses in section 6, "PROPOSED USE OF BUILDING / IMPROVEMENT", beside windows, additions and decks and porches, and its "TYPE OF IMPROVEMENT - CHECK ALL THAT APPLY" line includes ALTERATION and REPAIR. The application says "COMPLETION: MANDATORY TO OBTAIN PERMIT", and the requirements sheet charges a "$90 Residential Application Fee". The city publishes no statement of what a permit-free repair is, and nothing that exempts a reroof. 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 Lapeer, 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 Lapeer's Residential Addition Guidebook (revised July 2025) asks the roof framing plan for an addition to indicate "felt paper (underlayment), and ice and water shield"; the guidebook is about new additions, not reroofs. The Building Department page, permit application, requirements sheet, Codes Currently in Effect sheet and FAQ were read for a local rule and state nothing further on ice barrier; the city's codified Chapter 8 was not read.

Is drip edge required in Lapeer, 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 Lapeer Building Department page, building permit application, requirements sheet, Codes Currently in Effect sheet, FAQ and Residential Addition Guidebook were read for a local rule and state nothing further on drip edge; the city's codified Chapter 8 was not read.

Can you roof over an existing roof in Lapeer, 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's codified Chapter 8 (Buildings and Building Regulations) was not read, so no local roofing rule could be checked against it; the Building Department page, permit application, requirements sheet, Codes Currently in Effect sheet, FAQ and Residential Addition Guidebook state no layer rule.

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

Yes.

What building code does Lapeer, 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 Lapeer as its own building code enforcer. The city's Codes Currently in Effect sheet, revised 2-25-26, lists for residential work "Michigan Residential Code 2015 with Administrative Rules Part 5 - Amendments", and also lists "Michigan Residential Code 2021 - Chapter 11" for the energy code. The city's code of ordinances is on eCode360, whose table of contents lists Chapter 8, Buildings and Building Regulations; that chapter was not read for this record.