Commercial EPDM Roofing

Commercial EPDM Rubber Roofing Installation in Denver, CO

Expert Installation & Replacement

EPDM (ethylene propylene diene monomer) rubber roofing is one of the most reliable and cost-effective membrane systems for commercial buildings across the Denver area. Whether you’re installing a new roof on a warehouse, apartment complex, or office building, Core Roofing Systems brings 25+ years of expertise in single-ply membrane systems. We design, install, and warrant every EPDM system to protect your building for decades. Our team understands the unique demands of Colorado’s climate—sun exposure, hail, temperature swings—and installs EPDM systems built to last.

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Why Choose Core

Why Denver & Colorado Businesses Choose Us for EPDM Installation

Core Roofing Systems crew installing EPDM rubber roofing on a commercial building in Denver

25+ Years of Commercial Roofing Leadership

Core Roofing Systems has installed, inspected, and maintained thousands of commercial roofs across the Denver metro area and beyond. When you hire us for EPDM installation, you’re getting a contractor who has seen every roof type, every climate challenge, and every building age. That experience translates into faster project timelines, zero surprises, and systems that perform.

Owens Corning Platinum Preferred & Versico Authorized

We’re certified by the manufacturers whose materials we use. That certification means we meet rigorous installation standards, have access to factory-backed training, and can deliver the warranties that protect your investment. Versico’s EPDM certification, in particular, ensures our seaming and installation protocols meet the highest industry benchmarks.

BBB A+ Accredited for 25+ Years

Better Business Bureau accreditation represents consistency, accountability, and a commitment to fair dealing. We stand behind our work, respond to concerns immediately, and maintain an A+ rating because we do right by our clients every single time.

Colorado Roofing Association & Industry Awards

We’ve been recognized by the Colorado Roofing Association and regional business journals for quality work and integrity. These aren’t participation trophies—they reflect a track record of projects completed on schedule, within budget, and to the highest standards. Awards from ColoradoBiz Magazine, Denver Business Journal, and CIVIC50 community recognition underscore our credibility.

5-Year Workmanship Warranty + Manufacturer Backing

Every EPDM system we install includes our 5-year workmanship warranty plus the factory warranty from Owens Corning or Versico, depending on the membrane. That dual coverage means your roof is protected against material defect and installation error for years to come.

Local Denver Expertise in High-Altitude, High-UV Conditions

Denver sits at 5,280 feet with intense UV exposure year-round. That environment is hard on roofing membranes. Our crew understands how Colorado sun, seasonal hail, and temperature extremes affect EPDM performance. We install systems—including proper insulation, ventilation, and seam reinforcement—specifically designed to excel in our climate.

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Ready to Upgrade Your Roof?

EPDM installation is a significant project that requires expert planning and precision execution. Our team starts with a thorough roof assessment, reviews your building’s structure, evaluates your timeline and budget, and delivers a clear plan before any work begins.

To compare EPDM with other single-ply options, explore our TPO roofing installation, PVC roofing systems, or our full suite of commercial low-slope roofing solutions. Ready to move forward? Contact us today.

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Our Process

How EPDM Installation Works: Our 5-Step Process

Roof Inspection & Substrate Preparation

We begin with a comprehensive roof inspection to assess the current structure, identify any damage, and determine substrate suitability. For new construction or tear-offs, we prepare a clean, level substrate free of debris, protrusions, and damage. For overlay installations, we address low spots, patch any deteriorated areas, and ensure proper drainage. This foundation work—often overlooked on lower-quality jobs—is critical to EPDM longevity. Our crew takes photographs at every stage so you have documentation of what was found and corrected.

Underlayment, Insulation & Fastening Strategy

EPDM systems require proper support to perform. We install a suitable underlayment or insulation layer based on your building code, energy goals, and existing roof structure. For flat or low-slope commercial roofs, we often use rigid foam insulation (polyiso or XPS) to meet energy codes and provide additional R-value. All insulation is fastened securely using the appropriate fastening schedule for wind load and building height. This step ensures the membrane sits on a stable, properly ventilated base that allows long-term performance.

EPDM Membrane Installation & Seam Placement

Our crew rolls out the EPDM membrane—typically 45 or 60 mil—and positions it across the roof surface. Seam placement is strategic: we minimize the number of seams, position them away from high-traffic areas, and ensure they align with building slope and drain patterns. The membrane is loosely laid first for final positioning, then mechanically fastened or adhered per the project specification. Precision here determines whether the roof functions flawlessly for 30+ years or develops problems within a decade.

Seam Sealing, Testing & Quality Verification

The critical difference between a good EPDM roof and a problem-prone one is in the seams. We seal every seam using Versico or Owens Corning seam cement and primer, applied in controlled conditions by trained technicians. We do not cut corners: every seam is field-tested (holiday detection), re-sealed if needed, and documented. Penetrations (pipes, vents, skylights) are flashed with EPDM boots and seam tape, then tested for watertightness. We photograph all seams and test results so you have proof of quality.

Final Inspection, Documentation & Handoff

Before we call the job complete, our crew and our supervisor walk the entire roof. We inspect every fastener, seam, and penetration. We clean up debris, remove all temporary equipment, and leave your building clean. You receive a warranty certificate, installation documentation, maintenance recommendations, and our direct contact information for any future questions. We schedule a 6-month and 12-month post-installation follow-up to ensure the roof is performing as expected and to address any minor issues before they grow.

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Have Questions?

Frequently Asked Questions About EPDM Roofing

EPDM (ethylene propylene diene monomer) is a single-ply synthetic rubber membrane. It’s used on flat and low-slope commercial roofs because it’s durable, flexible, lightweight, and cost-effective compared to built-up or tar-and-gravel systems. EPDM can last 30–50+ years with proper installation and maintenance, making it one of the most economical long-term choices for warehouses, apartment buildings, office parks, and industrial facilities.

A properly installed EPDM system typically lasts 30–50 years or more. In Denver’s high-UV environment, we typically see excellent performance in the 30–40 year range. Longevity depends on installation quality, maintenance, and exposure to extreme weather (hail, wind). Our 5-year workmanship warranty covers installation defects; Owens Corning and Versico manufacturer warranties provide additional coverage for material performance.

All three are single-ply membranes, but they differ in composition and cost. EPDM is rubber-based and the most economical. TPO (thermoplastic olefin) is plastic-based and energy-reflective. PVC (polyvinyl chloride) is plastic-based and offers superior chemical resistance. For most commercial buildings in Denver, EPDM is the most cost-effective choice. TPO and PVC are preferred if you need high reflectivity (energy efficiency) or expect chemical exposure. We can help you evaluate which is best for your specific building.

EPDM seams are sealed using specialized seam cement and primer applied by trained technicians. When done correctly—with proper surface prep, controlled application, and field testing—EPDM seams are extremely reliable. We use Versico or Owens Corning approved seam products and verify every seam with holiday detection (electrical testing) before the roof is considered complete. Seam quality is the #1 predictor of long-term roof performance, and we never compromise on this step.

Yes, EPDM is one of the easiest membranes to repair. A damaged section can be patched with EPDM patch material and seam cement. Small punctures, tears, and seam issues are straightforward to fix without replacing the entire roof. This repairability, combined with its durability, is another reason EPDM remains popular. When repair time comes, we respond quickly and use factory-approved repair protocols.

EPDM comes in black or white reflective (usually 30–40% reflective). Black EPDM absorbs solar heat, which is beneficial in cold climates like Denver where some heat gain can reduce winter heating costs. White reflective EPDM reduces cooling loads in summer. For energy efficiency, white EPDM is the better choice, though it’s slightly more expensive. Both options offer superior insulation value when paired with rigid foam underlayment, which we typically install beneath the membrane.

EPDM is typically the most affordable single-ply membrane option. Costs vary based on roof size, complexity, substrate condition, accessibility, and regional labor rates. We provide transparent quotes after a site inspection. Many of our commercial clients finance EPDM installation to spread costs over time. Explore our financing options to see how we can make a roof upgrade affordable for your business.

Our process includes inspection and prep, underlayment installation, membrane layout and fastening, seam sealing and testing, and final inspection. We schedule the work to minimize disruption to your business. For most commercial roofs, installation takes 2–4 weeks depending on size and weather. We’ll give you a detailed timeline and keep you informed throughout the project.

EPDM works well on most commercial buildings: warehouses, office buildings, light industrial facilities, apartment complexes, shopping centers, and more. It’s less suitable for buildings with very steep slopes (better for flat or low-slope roofs). If you’re uncertain whether EPDM is right for your building, contact us for a free assessment. We’ll evaluate your roof structure, climate exposure, and goals to recommend the best membrane system.

EPDM requires minimal maintenance. We recommend annual inspections, clearing debris from the roof surface, and ensuring drains are open. For buildings in harsh environments (chemical exposure, extreme weather), more frequent inspection may be warranted. We offer roof inspection services and can set up a maintenance schedule tailored to your building’s age and exposure.

Homeowners reviewing roof financing options with a Core Roofing Systems estimator

Flexible Financing

Flexible Financing for Your Denver Roof Project

A new roof shouldn’t be the reason a family raids their emergency fund. We offer flexible financing options for qualified homeowners so you can move forward on the work your home needs without waiting for the perfect moment. We’ll walk through options during your estimate so you know exactly what the monthly cost looks like before you commit.

Flexible Payment

Options for full replacements and repair projects.

Quick Approval

Simple application with fast decisions.

No Penalties

No prepayment penalties, ever.

Competitive Rates

Low rates for qualified homeowners.

No Hidden Fees

Clear, written terms before any work begins.

We Handle It

Paperwork handled in person with your estimator.

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Our Service Areas

Denver Metro Roofing Service Area

We serve homeowners, property managers, and commercial clients across the entire Denver Metro region. Below are the communities where we work every week:

Map of Denver Metro communities served by Core Roofing Systems

Aurora

Englewood

Lafayette

Lakewood

Evergreen

Louisville

Parker

Arvada

Morrison

Centennial

Boulder

Commerce City

Broomfield

Westminster

Genesee

Highlands Ranch

Greenwood Village

Erie

Castle Pines

Brighton

Northglenn

Lone Tree

Windsor

Thornton

Cherry Hills Village

Cherry Creek

Wheat Ridge

Serving Central Denver

Not sure if you’re in our service area? Call 303-295-2220 — and find out how we can help you.

303-295-2220 See All Service Areas

Local Expertise

Service Areas for Commercial EPDM Installation

Core Roofing Systems brings expert EPDM installation to 15 primary cities across the Denver metro area and surrounding Colorado regions. Whether your building is in a major commercial hub or a growing suburban corridor, we have the crew, equipment, and local knowledge to handle your project.

Aurora, CO

East Denver metro, rapid commercial growth, warehouses and office parks

Englewood, CO

South Denver suburban commercial, mixed-use developments

Lakewood, CO

West Denver tech and office park clusters

Parker, CO

Fast-growing southeast metro, light industrial and commercial centers

Centennial, CO

South metro commercial and retail, growing corporate presence

Castle Pines, CO

North-south corridor commercial, newer commercial construction

Lone Tree, CO

Southeast development zone, new office and mixed-use buildings

Highlands Ranch, CO

Large residential and light commercial area, professional buildings

Brighton, CO

Northeast commercial, industrial parks, agricultural services

Evergreen, CO

Mountain region, tourist and small commercial buildings

Arvada, CO

North metro commercial and industrial, automotive and warehouse

Westminster, CO

North-central commercial corridor, shopping and office centers

Broomfield, CO

North tech corridor, corporate headquarters, light industrial

Boulder, CO

Premium commercial, university-related facilities, tech offices

Greenwood Village, CO

South Denver upscale commercial, professional offices

Doing It Right Matters

Ready to Install or Replace Your Commercial Roof?

EPDM rubber roofing represents proven, cost-effective protection for your building. With proper installation and routine maintenance, an EPDM system will perform reliably for 30+ years, defending your investment against Colorado’s intense sun, hail, and temperature swings. Core Roofing Systems’s 25+ years of commercial roofing experience, Owens Corning Platinum and Versico Authorized certifications, and commitment to quality craftsmanship mean your roof gets installed right the first time—on schedule and within budget.

We understand that roofing is a significant capital project. That’s why we offer flexible financing options to help you spread costs over time and make a roof upgrade affordable for your business budget. For buildings with existing EPDM systems, we recommend routine roof inspections every 1–2 years to catch minor issues before they become expensive repairs. Our inspection service includes detailed documentation and a maintenance plan tailored to your roof’s age and exposure.

“Doing It Right Matters.”

Contact Core Roofing Systems Today Call 303-295-2220