Washtenaw County · Michigan
Commercial Roof Coating in Ann Arbor, MI
Restore Your Commercial Roof Without a Full Replacement
Polyurea roof coating for warehouses, research facilities, and commercial buildings across Ann Arbor and Washtenaw County. A seamless, fast-curing membrane goes over the roof you already have, so your facility keeps running while the work gets done.
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The problem
Ann Arbor’s Weather Is Hard on Commercial Roofs
Ann Arbor sits on the Huron River, and its winters swing between deep freezes and sudden thaws. Snow piles up on flat roofs, melts on a warm afternoon, and refreezes overnight in the seams. Over a few seasons that cycle works small cracks open into leak paths. Spring and summer bring hail and wind-driven rain that find every weak flashing.
For an Ann Arbor lab, warehouse, or office building, a leaking roof means wet insulation, damaged equipment, and interruptions to work that cannot easily move somewhere else.
Full replacement is not the only option. AZ Coatings restores the roof you already have with a seamless polyurea system, at a fraction of the cost and with far less downtime.
Why polyurea
Why Ann Arbor Building Owners Choose Polyurea Coatings
Seamless Waterproof Protection
One continuous spray-applied membrane, with no seams or laps for Huron Valley snowmelt and driving rain to find.
Built for Freeze-Thaw
The membrane stays flexible through Michigan’s freeze-thaw swings, moving with the roof instead of cracking at the seams.
Fast Cure, Minimal Downtime
Polyurea cures quickly and goes over the existing roof, so your Ann Arbor facility keeps operating during the work.
The process
How We Restore a
Commercial Flat Roof in Ann Arbor
Free Inspection & Assessment
We walk your Ann Arbor roof and check for snow-load stress, cracked seams, ponding water, and moisture trapped around rooftop equipment.
Surface Cleaning & Prep
The surface is cleaned, damaged areas are repaired, and the roof is primed so the coating bonds fully.
Polyurea Application
A seamless polyurea membrane is spray-applied over the whole roof, including curbs and penetrations.
Quality Inspection
We check every section for coverage, thickness, and sealed penetrations before we sign off.
Final Walkthrough & Warranty
We walk the finished roof with you and hand over the documentation for your records.
Building types
Ann Arbor
Commercial Buildings
We Serve
AZ Coatings restores flat and low-slope roofs on commercial, research, and industrial buildings throughout Ann Arbor and Washtenaw County.
On the roof
What We See on Ann Arbor Commercial Roofs
Rooftop equipment
Research and lab buildings, medical offices, and tech facilities run heavy HVAC, exhaust, and ventilation units on the roof. Every curb, pipe, and conduit is a penetration where water can get in, and on an aging membrane that is usually where a leak starts.
Industrial parks south of the city
The industrial parks along the I-94 corridor in Pittsfield Township, and the older plants and hangars around Ypsilanti and Willow Run, have large flat roofs with long seam runs. Ponding after a storm and seam separation after a hard winter are what we find most often there.
What polyurea changes
A polyurea system is spray-applied as one continuous membrane, so it seals around penetrations without flashing tape or seams. It goes over the existing roof, so a lab or clinic does not have to shut down while the work is done.
Service area
Serving Commercial
Buildings Throughout
Ann Arbor, MI
We serve commercial and industrial properties across Ann Arbor and the surrounding Washtenaw County area, including:
Pittsfield Township
Ypsilanti
Saline
Scio Township
Dexter
Chelsea
We also work with facilities along the I-94 and US-23 corridors, the South State Street and Carpenter Road business districts, and the Ann Arbor Municipal Airport and Willow Run Airport areas. See also polyurea roof coating in Flint and polyurea roof coating in Almont.
The comparison
Polyurea Restoration vs. Full Tear-Off Replacement
| Factor | Polyurea restoration | Full tear-off replacement |
|---|---|---|
| Cost | A fraction of replacement cost | Full replacement cost |
| Downtime | Days | Weeks |
| Disruption to operations | Minimal, building stays in use | Significant, sections shut down |
| Existing roof | Stays in place and sealed | Removed, deck exposed |
| Landfill waste | None | Full roof removed |
Why AZ Coatings
Why Ann Arbor Businesses
Choose AZ Coatings
Founded in 2021, AZ Coatings specializes in commercial and industrial polyurea roof restoration. We are SPFA certified (Spray Polyurethane Foam Alliance) and a certified Women-Owned Small Business (WOSB). Our crews travel from our Michigan headquarters in Almont to job sites across Ann Arbor and Washtenaw County. Ann Arbor is part of our Southeast Michigan service area.
SPFA Certified
WOSB Certified
Serving Michigan since 2021
Frequently Asked
Questions
Common questions from Ann Arbor building owners and facility managers.
How much does commercial roof coating cost in Ann Arbor?
Cost depends on roof size, the condition of the existing membrane, and how much repair is needed before coating. Because polyurea goes over the roof you already have, there is no tear-off, no disposal, and no new roof system to pay for, which is where most of the savings come from. AZ Coatings inspects your Ann Arbor roof for free and gives you a clear quote before any work starts.
Can you work around a facility that cannot shut down?
Yes. Polyurea restoration does not open the roof. The existing membrane stays in place and sealed, the work moves across the roof in sections, and the coating cures quickly, so labs, clinics, and production floors keep running underneath. We plan the schedule around your operating hours.
Do you handle roofs with a lot of rooftop equipment and penetrations?
Yes. Curbs, pipes, vents, and conduit are where most leaks on an Ann Arbor commercial roof start. Polyurea is spray-applied, so it seals around each penetration as one continuous membrane instead of relying on flashing tape and sealant. Sealed penetrations are checked as part of our quality inspection.
Can polyurea survive Michigan winters?
Yes. Polyurea is a high-elongation membrane that moves with the roof as it expands and contracts through freeze-thaw cycles, instead of cracking. It forms one continuous surface with no seams for snowmelt to work into. Our inspection checks for snow-load stress, ponding, and trapped moisture before any coating goes down.
Do you work in Ann Arbor and Washtenaw County?
Yes. AZ Coatings serves commercial and industrial buildings across Ann Arbor and Washtenaw County, including Pittsfield Township, Ypsilanti, Saline, Scio Township, Dexter, and Chelsea. Our headquarters is in Almont, in Lapeer County, and crews travel to Washtenaw County on a project basis. Call (248) 925-7414 to confirm coverage for your address.
Schedule Your Free
Ann Arbor Roof Inspection
Get a free inspection and a clear restoration plan for your Ann Arbor commercial property. To talk it through first, call Michigan: (248) 925-7414.