Keeping Ann Arbor Restaurant Kitchens Dry Through Service
Ann Arbor's restaurant scene runs from tight downtown storefronts on Main and State Streets to standalone pad buildings along Washtenaw Avenue and Carpenter Road, and both extremes share the same core roofing problem: a small roof carrying a disproportionate amount of kitchen exhaust, grease, and heat compared to its size. A restaurant roof doesn't have the luxury of a slow week to schedule around, since a kitchen that can't run is a bigger problem than a maintenance ticket, it's lost service.
Downtown Main and State Street Restaurant Rows
The restaurant density along Main Street and State Street means a lot of these roofs sit on older mixed-use buildings, sometimes with the restaurant occupying ground-floor space below apartments or offices, which limits roof access and adds coordination with other tenants above. Kitchen exhaust routing on these older downtown buildings is often a retrofit, ducted up through a building never originally designed for a commercial kitchen, and the roof penetration where that ductwork exits is usually the weakest point in the whole assembly. We look closely at grease exhaust curb flashing on any downtown restaurant roof, since heat and grease residue degrade standard flashing membrane faster than normal weathering does.
Grease, Heat, and Kitchen Exhaust Penetrations
A commercial kitchen exhaust system runs hot and carries airborne grease that settles on and around the roof penetration over time, breaking down standard membrane and flashing adhesives faster than almost any other rooftop condition we see. We use grease-resistant flashing systems at these penetrations specifically, and we build in a maintenance-friendly detail that makes it easier to clean accumulated grease residue around the curb without disturbing the flashing seal itself. Skipping this detail is the single most common reason we get called out to a restaurant roof for an emergency leak, a hood exhaust curb that was flashed like a standard rooftop unit instead of accounting for what's actually venting through it.
Working Around Service Hours Not Around the Calendar
Unlike a school or an office building, a restaurant doesn't have an obvious slow season, but it does have predictable daily patterns: quiet mornings before lunch service, a gap between lunch and dinner rushes, and closed hours overnight. We schedule the loudest and most disruptive phases of roof work, tear-off and deck prep especially, around those quieter windows, and we coordinate directly with the owner or manager on which service periods absolutely cannot be interrupted, since a Friday dinner rush at a downtown restaurant is not the time for a crew to be cutting into the roof deck above the kitchen.
Odor and dust control matter more here than on most commercial roofs, since roofing debris or fumes drifting into an active dining room is an immediate problem a restaurant can't absorb the way a warehouse could.
Standalone Pads Along Washtenaw and Carpenter
Standalone restaurant buildings along Washtenaw Avenue and Carpenter Road are a different building type entirely, usually single-story pad sites built specifically for restaurant use with drive-through lanes and dedicated parking. These roofs tend to be simpler in footprint but still carry a concentrated kitchen exhaust load relative to the building's small size, plus rooftop signage structures and drive-through equipment in some cases that add their own penetration points. We check signage and equipment mounting details as part of any roof survey on these buildings, since a poorly flashed sign mount is a common overlooked leak source on standalone pad restaurants.
- Grease-resistant flashing at kitchen exhaust and hood curb penetrations
- Maintenance-accessible curb detail that survives repeated grease cleaning
- Scheduling around lunch and dinner service rushes, not a generic calendar
- Odor and dust containment near active dining rooms during work
- Signage and drive-through equipment mount review on standalone pads
- Drainage sized correctly for small, penetration-dense restaurant roofs
Small Roofs, High Penetration Count
A restaurant roof is almost always smaller than a comparable retail or office building's, but it often carries a similar or greater number of penetrations relative to its size: kitchen exhaust, makeup air, walk-in cooler condensing units, and sometimes rooftop dining structures below. That density means a small roof needs the same careful flashing attention a much larger building would get, and cutting corners on a "small job" restaurant roof is where we see the fastest repeat failures.
Questions Restaurant Owners and Managers Ask
Can roofing work happen without closing the kitchen?
Usually yes. We schedule the loudest work around your quieter service windows and coordinate closely on which shifts absolutely can't be disrupted, so the kitchen keeps running through the project.
Why do restaurant roofs leak more than other small commercial buildings?
Grease and heat from kitchen exhaust degrade standard flashing faster than normal weathering, and a hood exhaust curb flashed like a generic rooftop unit is the most common failure point we find.
Do you handle roofs on older downtown mixed-use buildings?
Yes. Retrofitted exhaust routing through a building not originally built for a commercial kitchen needs particular attention at the roof penetration, and we coordinate access with any tenants above the restaurant space.
What about standalone buildings with drive-throughs and signage?
We check signage and drive-through equipment mounting as part of the roof survey, since poorly flashed sign mounts are a common overlooked leak source on standalone pad restaurants.
How do you keep dust and odor out of the dining room during work?
We use tighter containment near active dining space than a typical commercial job, since debris or fumes drifting into an open restaurant is an immediate problem that can't wait for cleanup.