Clear scope. Clean execution.
Restaurant roofing in San Antonio is its own category - not because the membrane is exotic, but because the penetration environment and the scheduling constraints are unlike any other commercial building type. The Pearl District restaurant cluster north of downtown - which includes Southerleigh Fine Food and Brewery, Cured, Best Quality Daughter, and more than a dozen other full-service restaurants in the former Pearl Brewery complex - carries the most concentrated restaurant roofing environment in the city. Multiple rooftop kitchen exhaust stacks per building, high-volume grease exhaust, rooftop HVAC units serving dining rooms with high occupancy loads, and buildings that are open for dinner service seven days a week.
The River Walk hospitality corridor - the hotels, restaurants, and event venues along the San Antonio River between the Convention Center and the Pearl - adds a different dimension: tourist and convention traffic that does not pause for construction, and historical and aesthetic standards for the Riverwalk corridor that the San Antonio River Authority and the City's Office of Historic Preservation enforce. Roofing work visible from the Riverwalk or affecting the building's exterior appearance requires coordination with those bodies.
Freestanding QSR (quick service restaurant) buildings across San Antonio - the pad sites at major retail centers, the standalone buildings on Loop 410 and US-281 - are more straightforward in geometry but carry the same grease exhaust challenge: accumulated grease at exhaust penetrations degrades standard flashing sealants within a few years and creates a fire hazard if not addressed at reroof. We address it every time.
Grease Exhaust - The Most Overlooked Restaurant Roofing Detail
Type 1 kitchen exhaust fans on restaurant roofs discharge grease-laden air at high velocity through rooftop penetrations. The grease accumulates at the base of the exhaust fan housing and at the penetration sleeve, where it contacts the roofing membrane and the flashing sealant. Standard TPO flashing sealant - the same sealant used on office or warehouse buildings - degrades in the presence of cooking grease within 2 to 4 years. The result is a failed penetration seal that allows water intrusion directly into the building below the kitchen.
We specify grease-resistant sealant at every Type 1 exhaust fan penetration - silicone or modified silicone formulations rated for continuous grease contact, not the polyurethane caulk that most commercial roofing uses. The exhaust fan base flashing is fabricated in EPDM or PVC, not standard TPO, on high-grease-exposure buildings. We document the sealant specification by penetration at closeout so the next maintenance scope knows what is installed.
Grease accumulation at exhaust fan penetrations is also a fire hazard. The National Fire Protection Association (NFPA 96) requires rooftop exhaust systems to be maintained to prevent grease accumulation, and the City of San Antonio Fire Department enforces those requirements on commercial kitchens. During inspection on any restaurant building, we document grease accumulation at exhaust fan penetrations and note it in the inspection report - not as a roofing item, but as a life safety item that the building owner needs to address separately from the roof.
Pearl District and River Walk Scheduling and Aesthetic Requirements
The Pearl District restaurant cluster operates primarily Thursday through Sunday evenings with some lunch service on weekdays. Roofing work on Pearl District buildings is typically feasible on Monday through Wednesday mornings - but even those windows require coordination with the building's management, since the mixed-use nature of the Pearl campus means there are always residents, office tenants, and retail operations that may be affected by construction noise or crane staging.
The River Walk corridor's aesthetic and historic standards apply to visible rooftop elements - exhaust fan locations visible from the River, rooftop equipment that changes the building's silhouette, and any work that requires visible penetrations through historic masonry parapets. We flag those coordination requirements at the first site visit and route the applicable scope elements through the San Antonio River Authority and the Office of Historic Preservation before finalizing the scope.
Crane staging on the River Walk is constrained by the River Walk's pedestrian-priority design. There are few locations on the River Walk where a crane can stage without affecting pedestrian traffic. For small-to-medium restaurant buildings on the River, we use material lifts and rope hoist systems instead of cranes where the loads permit - which avoids the right-of-way permit process and the pedestrian exclusion zone requirements.
Freestanding QSR and Casual Dining Buildings
Standalone restaurant buildings - the Chick-fil-A, McDonald's, and regional casual dining pad sites across San Antonio - are typically 2,500 to 6,000 sq ft with a flat or low-slope TPO or EPDM roof and two to four rooftop HVAC units plus the kitchen exhaust stack. These buildings are straightforward in geometry but are almost always open for business during normal business hours, which means roofing work runs before or after operating hours or on days when the specific location is closed.
National restaurant brands manage roofing through facilities management programs with specific contractor qualification and proposal format requirements. McDonald's, Chick-fil-A, Whataburger, and regional Texas chains like Bill Miller Bar-B-Q all have facilities programs with different approval chains. We are familiar with the facilities management structures at several national and regional brands active in the San Antonio market.
Drive-through operations present a specific safety constraint. Crane placement or material staging that conflicts with the drive-through lane is a business disruption that triggers lease-compliance conversations. On QSR buildings, we stage materials to avoid the drive-through lane and coordinate any lane-closure requirements with the restaurant operator and the property owner - not just the general contractor or property manager.
Frequently asked questions
How do you handle grease exhaust fan penetrations differently from standard penetrations?
With grease-resistant sealant and compatible base flashing membrane at every Type 1 exhaust fan location. Standard polyurethane caulk fails within 2 to 4 years in continuous grease contact. We use silicone or modified silicone sealant at all grease-exposure penetrations and fabricate the base flashing in EPDM or PVC on high-exposure buildings. The specification is documented by penetration at closeout so the next maintenance scope knows exactly what is installed.
Can you work on Pearl District or River Walk buildings without disrupting dinner service?
Yes. For Pearl District restaurants, we schedule production on Monday through Wednesday mornings when most locations are closed for lunch and dinner. For River Walk buildings, we work with the building's management and the San Antonio River Authority on any scope element that affects the River Walk pedestrian environment. Early morning hours - before 10 AM - are the most workable window on the River Walk corridor.
Do you document the grease accumulation at exhaust fans as a fire safety item?
Yes. NFPA 96 requires rooftop exhaust systems to be maintained free of grease accumulation. If we observe significant grease buildup at exhaust fan penetrations during inspection, we document it in the inspection report and note it as a life safety item requiring attention separate from the roofing scope. We do not remove grease accumulation from exhaust systems - that is a kitchen exhaust cleaning contractor's scope - but we flag it clearly so the building owner can take action.
Restaurant roofing scope in San Antonio?
Whether it is a Pearl District full-service restaurant, a River Walk hotel, or a freestanding QSR pad site, our project managers will produce a written scope that addresses the grease exhaust environment and fits your operating schedule.
Request a Roof Scope