Detroit particulars
LARA's Statewide Jurisdiction List (revised Oct 6, 2026) marks building-code enforcement in the City of Detroit as local, which means the city, not the state or the county, issues roofing permits where one applies. The List does not say whether a Detroit re-roof needs one, and no city page we can cite settles it, so ask the city's building permit office before the work is scheduled. In the Census ACS 2023 five-year estimates, 90.1 percent of Detroit's homes were built before 1980 and the median home value is $76,800.
With housing that old, it is worth having the whole roof looked at before you agree to patch one spot. Wayne County's NCEI storm reports for Jul 2024 to Jun 2026 list 4 hail reports of 1 inch or larger on 3 days (largest 1.25 in), 29 wind reports of 50 knots or more on 13 days (largest 66 kt) and 2 tornado reports. One storm can generate several of those reports, so they say little about how many storms there were.
The reports that name Detroit itself, 3 wind and no hail, are a minimum. Table R301.2(5) gives the county a ground snow load of 20 psf. Hamtramck and Ferndale sit next door, and the county storm history tool shows the same reports by county.
Roof replacement in Detroit: what to know
Wayne County is listed at 20 psf of ground snow in Michigan's state table, the low end of the state table's range, and it is snow on the ground rather than a load on your rafters. The same code that sets it requires replacement to take old coverings off down to the deck. Along the eaves, an ice barrier goes at least 24 inches inside the exterior wall line, per the 2015 text with no Michigan amendment found.
Detroit's housing is 90.1 percent pre-1980 and the median home value is $76,800, so the roof is often the largest repair a house will face. We found no Detroit permit rule for a re-roof, which leaves the city's building office as the one to ask about fees and inspections. Get its answer before the contract date and before any materials are delivered.
Permits for roof replacement in Detroit
Roofing is not on the state's exemption list, enforcement is local, and cities answer differently.
Many cities run their own building department, so start by asking the City of Detroit building department who issues roofing permits.
When a replacement cannot wait for the calendar
- The old covering is off and the deck is open to rain or snow with no cover on it. Ask the company in writing what it will do tonight.
- Water is entering the house during the job.
- An aging roof with no leaks: compare written estimates and read your policy first.
What to gather before you ask for estimates
Try this first: ask the company to write "tear-off to the deck" and the eave ice barrier into the contract by name.
- Find your declarations page and note whether roof losses settle at actual cash value or replacement cost, and whether you have ordinance and law coverage.
- Get written estimates, as DIFS advises, and ask each company what it will do about tear-off to the deck, the ice barrier, underlayment, flashing and the permit.
- Check each license number on LARA before you sign.
What roof replacement costs
The estimate below is the Michigan-wide one, adjusted for Michigan wages and not for Detroit in particular. The same table is on the roof replacement page. How we estimate costs. Prices as of Oct 19, 2026.
| Item | Figure | What it is |
|---|---|---|
| Estimated range, not a quote | $6,225 to $15,400 per roof, tear-off included | Built from two national published ranges, adjusted by the Michigan roofer median wage ratio (1.07) plus a typical permit fee ($100). No Michigan roofing company price is shown, because none of the companies we looked at published a price we could count. |
| Estimated range per square, not a quote | $275 to $740 per square (100 square feet), installed | Built from one national published range, adjusted by the Michigan roofer median wage ratio (1.07). No Michigan roofing company price is shown, because none of the companies we looked at published a price we could count. |
| Roofer wage, Michigan median | $28.62 an hour | 25th to 75th percentile $23.02 to $37.56. What Michigan roofers are paid (BLS May 2025, read through O*NET OnLine), not what a company charges you. Medium confidence. |
| Roofer helper wage, Michigan median | $20.07 an hour | 25th to 75th percentile $18.50 to $23.86. A wage, not a price. Medium confidence. |
| Residential re-roofing permit, Grand Rapids | $66 | FY2027 fee schedule. |
| Roof or re-roof permit, Sterling Heights | $78, plus $56 application | Building permit application, 2026-27. |
| Roof permit, East Lansing | $60 application, plus $140 residential | Unclear whether the $140 includes the $60. |
| Re-roofing permit, Kalamazoo | $52 | 2026 fee schedule; other fees may add to it. |
| Roofing permit, Midland | Valuation is squares times $300; table starts at $78 for the first $1,000 | Whether the roofing fee uses this table is our inference. |
How we estimate costs: the Estimated range row is a model, not a quote. It takes two published national ranges for this job (cost guides from third-party sites that we have not verified and do not cite) and multiplies them by Michigan's roofer median wage ratio to the US (1.07, BLS May 2025 data read through O*NET OnLine) and adds a typical permit fee ($100). The wage and permit rows in the table are what roofing workers are paid and what a city's own schedule charges, and neither is a price. We have not collected quotes, and we found no Michigan roofing company that publishes a price we could count. Full method.
Questions about roof replacement
How many layers of shingles can a Michigan roof have?
Under the 2015 code, a re-cover is barred where the existing roof already has two or more applications of roof covering, so a second layer in total is the limit. A replacement includes tear-off to the deck. Re-cover is also barred over a water-soaked or deteriorated roof.
Does Michigan require an ice barrier on a new roof?
Michigan's table says yes, along the eaves: from the lowest edge to at least 24 inches inside the exterior wall line. Slopes of 8:12 or steeper also need at least 36 inches along the slope. We rate the distances medium confidence.
Do I need a permit to replace my roof in Michigan?
It depends on your city: Grand Rapids and Sterling Heights require one, and Portage requires none for shingles only. Ask the building department before you sign.