EPDM Roofing Installation in Rockford, IL

EPDM roofing installation provides superior protection for commercial buildings through its exceptional rubber membrane durability and weather resistance. Rockford Superior Commercial Flat Roofing's certified technicians deliver precise single-ply system installations using premium materials from Firestone Building Products and Carlisle SynTec. We implement thorough roof substrate preparation procedures to ensure optimal adhesion and longevity. Whether your project requires a fully-adhered application or ballasted installation method, our team customizes solutions based on your building's specific needs. We specialize in applying varying membrane thickness options (45, 60, or 90 mil) to match your performance requirements while utilizing advanced seam sealing techniques with EPDM lap sealant to create watertight protection.


Our comprehensive installation process includes expert application of water cut-off mastic around penetrations and careful integration of self-adhered flashing at critical junctions. We excel in both adhesive bonding methods and mechanically fastened systems depending on your roof structure and local wind load requirements. Every installation includes professional weatherproofing details that maximize the material's natural UV resistance capabilities throughout Rockford, IL. Our installations feature premium components from Johns Manville and follow manufacturer-certified procedures to ensure warranty compliance and long-term performance. Trust our experienced team to deliver an EPDM roofing system that provides decades of reliable protection.


Why Rockford Superior Commercial Flat Roofing is the Best Choice for EPDM Roofing Installation

With 28 years of experience in commercial roofing, we bring deep expertise to every EPDM roofing installation project in Rockford, IL. Our team understands the unique demands of the Rock River Valley climate, where winter temperatures frequently drop below zero and summer heat often exceeds 90°F, ensuring your roof performs reliably throughout all four seasons.


We hold a C‑39 Roofing Contractor License and maintain Master Elite Contractor status with the Northern Illinois Roofing Contractors Association, reflecting our commitment to quality and professionalism. Our installations are backed by a 30-year warranty specifically designed to address Rockford's annual snowfall averaging 36 inches and frequent freeze-thaw cycles common throughout Winnebago County.


Safety and responsibility are priorities for every project across greater Rockford. We carry general liability insurance with over $5 million in umbrella coverage and full workers' compensation insurance, protecting your property and our crew during installations from downtown's River District to the busy I-90 corridor.

Our approach to EPDM roofing installation focuses on durability and expert craftsmanship tailored to Forest City's variable climate. EPDM is highly resistant to UV rays, extreme temperatures, and the ponding water that can form after Rockford's heavy spring thunderstorms, making it an ideal roofing material for commercial buildings throughout northern Illinois.


Choosing us means working with a local company that understands the specific challenges faced by buildings in Cherry Valley, Loves Park, and greater Rockford.

Our Professional EPDM Roofing Installation Process

We approach every EPDM roofing installation with a focus on preparation, material selection, precise installation, and rigorous quality control. Attention to detail at each stage ensures a durable, weather-resistant roof suited for commercial flat roofing needs in Rockford, IL.

Surface Preparation and Assessment

Before installation begins, we thoroughly inspect your existing roof structure. Any old roofing materials, including asphalt layers or debris, are fully removed to create a clean slate. The surface must be clean, dry, and free of grease or dirt to allow optimal adhesion.



We also assess the roof’s level and drainage capabilities. If there are low spots causing water ponding, our team addresses these issues promptly. Proper surface preparation prevents premature failures and extends the lifespan of the EPDM roofing system.

Selection of EPDM Roofing Materials

We prioritize using high-quality EPDM membranes, typically sourced from leading manufacturers known for reliable performance and durability. Our membranes come in black or white, chosen based on your energy efficiency goals—black for heat absorption in colder months, white for reflecting sunlight and reducing cooling costs.



Materials like bonding adhesives, pressure-sensitive flashing, and silicone sealants are carefully selected to complement the EPDM membrane. These ensure watertight seals at seams, edges, and roof penetrations. We stock industry-standard tools to maintain consistent installation quality.

EPDM Roof Installation Methods We Use

Our team utilizes the fully adhered method as the primary choice, which means bonding the EPDM membrane directly to the prepared roof surface with professional-grade adhesives. This method offers superior leak resistance and strong membrane attachment.



We also offer mechanically fastened and ballasted installation options when project conditions or client preferences require them. Mechanically fastened roofs involve securing the membrane with fasteners along seams and edges, while ballasted roofs use gravel or pavers to hold down the membrane. Each method follows manufacturer guidelines to ensure proper handling and long-term performance.

Finishing Touches and Quality Checks

After installing the membrane, we meticulously seal all roof edges, corners, and penetrations using pressure-sensitive flashing and silicone sealants. These steps prevent moisture intrusion and improve durability under harsh weather conditions.



We carefully trim excess membrane for a clean look, avoiding cuts into the membrane itself. Finally, we perform comprehensive quality checks, including visual inspection, air bubble removal, and adhesion testing. Our goal is to deliver a professional, airtight EPDM roof that protects your building effectively for decades.

Benefits of EPDM Roofing for Commercial Properties

Choosing the right roofing material impacts maintenance, durability, and operating costs. EPDM roofing offers specific advantages in how it stands up to wear, handles environmental factors, and supports energy efficiency for commercial buildings.

Durability and Longevity

EPDM is a synthetic rubber roofing membrane known for its exceptional toughness. Its composition provides strong resistance to cracking, punctures, and tears, which are common issues in flat commercial roofing.



The material’s elastic nature allows it to expand and contract without damage during temperature fluctuations. This flexibility extends the roof’s service life, often lasting 30 years or more with proper installation and upkeep.


Unlike some roofing materials that require frequent repairs, EPDM is low-maintenance. Its resilience reduces the need for costly fixes or premature replacement, making it a practical choice for commercial roofing projects.

Weather and UV Resistance

Exposure to harsh weather is a significant concern for commercial roofs. EPDM’s formulation provides excellent resistance to UV radiation, preventing degradation caused by prolonged sun exposure.



It also performs well under extreme weather conditions, including heavy rain, snow, and hail. The synthetic rubber membrane remains waterproof and maintains its integrity, helping to avoid leaks and water damage.


This durability in adverse weather reduces disruption to business operations caused by roofing issues. Additionally, its dark surface naturally absorbs heat, which can be advantageous in colder climates for heat retention.

Energy Efficiency and Sustainability

EPDM roofing contributes to energy savings by minimizing heat loss during winter months thanks to its dark, heat-absorbing surface. This can reduce heating costs in commercial buildings.


Some EPDM membranes incorporate reflective coatings, increasing energy efficiency by deflecting sunlight. This lowers cooling loads in warmer months, balancing energy performance across seasons.


From a sustainability perspective, EPDM is environmentally friendly because it is recyclable at the end of its useful life. This reduces landfill waste compared to other roofing materials and aligns with green building practices.

EPDM Roofing Installation FAQs

  • How much does EPDM roofing installation cost per square foot?

    EPDM roofing installation costs $5.50-$8.50 per square foot for commercial projects. Standard 45-mil systems start at $5.50-$6.50, while premium 60-mil or 90-mil systems range from $7.00-$8.50 installed. Cost factors include roof accessibility, substrate condition, and fastening method. We offer competitive pricing through partnerships with Firestone, Carlisle, and Johns Manville.

  • What is the typical installation timeline for commercial EPDM roofing?

    Commercial EPDM roof installations are typically completed within 5-7 business days for projects up to 10,000 square feet. This includes tear-off, insulation installation, and membrane application. EPDM's wider installation temperature range allows for greater scheduling flexibility compared to other systems. Our Firestone and Carlisle certified crews ensure efficient installation while maintaining quality standards.

  • Do you offer warranties on EPDM roof installations in Rockford?

    Yes, we provide comprehensive warranty coverage including a 20-year manufacturer's material warranty and our 10-year workmanship guarantee. Through certifications with Firestone, Carlisle, and GenFlex, we offer extended warranty options up to 30 years on premium systems. All installations undergo quality inspections before warranty issuance, and our preventative maintenance programs help ensure continued warranty compliance.

  • Which EPDM roofing manufacturers do you use for commercial projects?

    We primarily install EPDM systems from Firestone Building Products, Carlisle SynTec, Johns Manville, and GenFlex. Our team holds multiple certifications including Firestone Master Contractor, Carlisle ESP, and Johns Manville Peak Advantage status. These certifications allow us to offer enhanced warranty options and ensure access to technical support for optimal system selection based on specific building requirements.

  • How long does an EPDM commercial roof last in northern Illinois?

    Properly installed EPDM commercial roofs typically last 25-30 years in northern Illinois. The rubber-based material handles extreme temperature fluctuations exceptionally well, with resistance to both UV degradation and freeze-thaw cycles. Premium 60-mil or 90-mil membranes from Firestone and Carlisle often perform beyond their warranty periods when combined with regular maintenance and proper drainage solutions for regional challenges.