Best Commercial Flat Roofing Company in South Bend, IN
Sherriff Goslin’s commercial roofing division installs trusted flat roof systems designed for long-term performance. As commercial roofing contractors, we offer a full range of commercial roofing services built for durability, weather resistance, and cost control. Some systems hold up under extreme heat, others maintain flexibility in changing weather, and several are best suited to northern climates with snow and wind exposure.
This page outlines the commercial roofing systems we install, including EPDM, TPO, PVC, and more. We explain how each system performs so you can compare materials based on lifespan, weather tolerance, and budget. Whether your project involves commercial roof repair or a full commercial roof replacement, our team will guide you toward a system that matches your building’s needs.
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EPDM Roofing & Rubber Roofing Systems
Proven for over 45 years, EPDM roofing systems remain a trusted option among commercial roofing materials. Known for their weather resistance and minimal upkeep, EPDM membranes can expand and contract without cracking, making them well-suited for long-term performance. They also resist UV exposure and ponding water, two of the most common causes of roof deterioration.
These features make EPDM an ideal choice for South Bend’s harsh climate, where temperature swings, snow, and heavy rain are common. Because installation requires no specialized equipment, EPDM is often a faster and more cost-effective option compared to other roofing materials used on commercial buildings.
Energy Efficiency
The traditional black EPDM membrane absorbs sunlight, helping to reduce heating costs during cold winters.
Snow Removal
EPDM's dark surface promotes snowmelt, preventing heavy snow accumulation that can damage your roof.
Cost-Effective
EPDM is easy and fast to install without specialized tools, keeping installation costs down and minimizing the risk of unexpected repairs.

TPO Roofing Systems
TPO, or thermoplastic polyolefin, roofing systems are rapidly becoming the premier choice in commercial roofing. Valued for their reflective properties and energy efficiency, TPO membranes come in both white and tan options. This translates to reduced energy use for your building, making TPO a certified Cool Roof Rating Council (CRRC) product and a favorite of Energy Star®.
But beyond energy savings, TPOs are known for their fast and easy installation thanks to prefabricated accessories that streamline the process and minimize roof prep time.
Energy Efficiency
TPO membranes reflect sunlight, lowering rooftop temperatures and reducing cooling costs during warm months.
Quick Installation
Prefabricated accessories and heat-welded seams allow for faster installation with less prep work and fewer delays.
Flexible Color Options
Available in white, tan, and gray, TPO offers design flexibility while meeting modern energy and code requirements.

FleeceBACK® Roofing System
FleeceBACK roofing systems from Carlisle combine the most durable features of EPDM and TPO into one high-performance membrane. Built for strength and longevity, FleeceBACK includes a reinforced fleece layer that increases puncture resistance, wind uplift strength, and overall durability across a wide range of conditions.
It also offers strong adhesion to insulation and deck surfaces, making it ideal for buildings that experience heavy foot traffic or fluctuating temperatures. This system is often used in commercial roof replacement projects where added resilience is critical. It performs well in areas with wind exposure, rooftop equipment, or demanding weather patterns.
Unmatched Durability
Featuring a strong fleece backing and Carlisle's trusted membranes, FleeceBACK offers superior resistance to harsh weather, punctures, and tears.
Wind Uplift Champion
With a wind uplift resistance of up to 120 miles per hour, FleeceBACK provides peace of mind even in extreme weather conditions.
Energy Efficiency
Available in reflective options, this flat roofing system reduces your building's energy consumption due to its reflective properties and white/tan color.
Asphalt Saturation Protection
For hot-mopped or cold-applied FleeceBACK systems, Carlisle's patented AFX fleece offers additional protection against hot asphalt damage.

PVC Roofing Systems
Polyvinyl chloride (PVC) roofing systems are a proven performer in the commercial roofing industry as they offer a balance of energy efficiency and affordability. Similar to EPDM and TPO, PVC membranes come in reflective varieties, making them Energy Star®-rated and CRRC-certified.
Additionally, PVC has superior resistance to the chemicals commonly found on rooftops, including greases, oils, and acids. This makes PVC a strong choice for buildings exposed to these elements.
Chemical Resistance
PVC membranes resist damage from rooftop exposure to grease, oil, and acidic byproducts often found near vents or equipment.
Energy-Efficient Design
Light-colored, reflective surfaces help reduce rooftop heat absorption and lower cooling demands during warmer months.
Proven Durability
With a lifespan that often exceeds 20 years, PVC delivers long-term performance with minimal maintenance or repairs.

Modified Bitumen Roofing System
Modified bitumen roofing systems from Sherriff Goslin combine strength, flexibility, and long-term performance for commercial buildings. These systems are made with asphalt-based membranes reinforced with fiberglass or polyester and modified with rubber or plastic polymers. This layered construction improves resistance to weather, foot traffic, and thermal movement, making it a dependable option for low-slope commercial roofs.
With installation methods that include heat-welded, cold-applied, and self-adhered applications, modified bitumen offers versatility across different roof structures. It’s especially effective in climates with shifting temperatures, where flexibility and adhesion are critical to long-term protection.
Strength & Flexibility
The combination of asphalt with modifiers and reinforcing agents like fiberglass gives you modified bitumen's tough, rubbery material that's both durable and flexible.
Enhanced Durability
A final layer of mineral granules provides added protection against the elements, extending the lifespan of your roof.
Consistent Quality
Manufactured in a controlled environment, modified bitumen systems offer consistent quality and reliable performance.
Ideal for High Traffic
More flexible than built-up roofing systems, modified bitumen is a suitable choice for roofs with high foot traffic.

Built-Up Commercial Roofing System
Built-up roofing is a traditional, layered system commonly used on flat commercial roofs. It’s assembled using alternating layers of asphalt, fiberglass mats, or roofing felts to form a thick, durable membrane. The system also includes a base sheet, insulation board, waterproofing layers, and a protective surface like gravel or stone.
Built-up roofs are valued for their durability and consistent performance across a variety of building types. They hold up well under moderate foot traffic and offer strong resistance to water and weather. While this system is often chosen for its lower upfront cost, it does require routine maintenance to extend its service life. Sherriff Goslin installs built-up commercial roofing systems designed to balance performance and long-term value.
Layered Protection
Multiple layers of asphalt, felt, and surfacing materials create a thick barrier that resists water penetration and improves roof longevity.
UV & Weather Resistance
The surface layer—typically gravel or a reflective coating—helps protect the membrane from sun exposure, temperature swings, and surface wear.
Long-Term Value
Built-up systems offer proven durability with proper upkeep, making them a reliable option for buildings with long-term occupancy plans.
Commercial Flat Roofing Systems FAQs
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Why Experience Matters: 120 Years of Roofing You Can Trust
For over a century, Sherriff Goslin Roofing Co. has delivered dependable roofing services built on craftsmanship, consistency, and care. Our long-standing presence in the industry is proof that we do things the right way, every time.
While many roofing companies come and go, we’ve remained a trusted name for generations. When you choose Sherriff Goslin, you’re partnering with a company that’s been supporting homeowners across the Midwest for 120 years and counting.

Commercial Flat Roof Experts in South Bend - Contact Today
Uncertain about which flat roof option is best for your South Bend business? Sherriff Goslin's commercial roofing experts are here to assist you. We offer a free consultation and quote, so you can get all your questions answered and explore the best flat roof solutions for your needs. We'll work with you to understand your budget and goals, guaranteeing a roof that's reliable, energy-efficient, and built to last.
Ready to discuss your flat roof project? Contact us today! We look forward to partnering with you to keep your business running and protected.
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Aaron C.