When it comes to protecting your commercial property, the roof is one of the most important investments you can make. A high-performing commercial roofing system not only shields your building from the elements but also plays a critical role in energy efficiency, structural integrity, and long-term value.
At Integrity Pro Roofing, we specialize in delivering durable, efficient commercial roofing solutions throughout the Denver metro area. Whether you’re managing an office complex, warehouse, retail center, or industrial facility, understanding the different types of commercial roofs and how to choose the right one is essential for long-term success.
In this guide, we’ll walk you through the most common commercial roofing systems, their benefits, typical lifespans, and factors to consider when choosing the best option for your property.
Why Commercial Roofing Is Different
Unlike residential roofs, which are often pitched and covered with shingles, most commercial roofs are flat or low-slope, requiring specialized materials and installation techniques. Commercial roofs also support rooftop equipment like HVAC units, which adds complexity and demands durability.
These systems must withstand intense sun exposure, hail, snow loads, and high winds — all common in Denver’s unpredictable climate. The right roofing system can improve energy efficiency, reduce maintenance costs, and extend the lifespan of the building itself.
Popular Commercial Roofing Systems
1. TPO (Thermoplastic Polyolefin)
TPO is one of the most popular commercial roofing materials today, known for its affordability, flexibility, and energy efficiency. It’s a single-ply membrane system that reflects UV rays and resists chemical exposure, making it ideal for businesses looking to cut down on cooling costs.
Key Benefits:
- Heat-reflective and energy-efficient
- Lightweight and flexible
- Resistant to punctures, tears, and bacterial growth
- Compatible with various building types
Typical Lifespan: 20–30 years with proper maintenance
2. PVC (Polyvinyl Chloride)
PVC roofing is another single-ply membrane system, highly durable and resistant to chemicals, grease, and fire. It’s often used on restaurants, factories, and buildings where exposure to oil or harsh substances is a concern.
Key Benefits:
- Excellent resistance to chemicals and oils
- Highly reflective, which helps with energy savings
- Strong seams due to heat-welded installation
- Fire-resistant and durable in extreme conditions
Typical Lifespan: 20–30 years
3. EPDM (Ethylene Propylene Diene Monomer)
EPDM is a synthetic rubber membrane that has been used in commercial roofing for decades. It’s known for its long lifespan and ease of repair. While it doesn’t reflect heat as well as TPO or PVC, its proven performance and affordability make it a go-to for many property owners.
Key Benefits:
- Excellent resistance to UV radiation and ozone
- Flexible in cold temperatures
- Simple to install and maintain
- Cost-effective for large flat roofs
Typical Lifespan: 25–35 years
4. Flat Metal Roofing
Metal is an increasingly popular choice for flat and low-slope commercial roofs thanks to its strength, longevity, and energy efficiency. While it typically comes at a higher upfront cost, its durability and low maintenance make it a smart long-term investment.
Key Benefits:
- Lasts decades with minimal upkeep
- Excellent resistance to weather and impact
- Reflects sunlight and reduces cooling costs
- Recyclable and environmentally friendly
Typical Lifespan: 40–60 years or more
5. Built-Up Roofing (BUR)
BUR systems, also known as tar and gravel roofs, consist of multiple layers of asphalt and reinforcing fabric topped with gravel. These roofs are incredibly durable and provide great insulation, though they are heavier and require more installation time.
Key Benefits:
- Proven performance over a century
- Strong protection against weather and foot traffic
- Good fire resistance
- Excellent insulation value
Typical Lifespan: 20–30 years
6. Modified Bitumen
Modified bitumen is a modern evolution of BUR, combining asphalt with rubber or plastic modifiers for improved flexibility and strength. It’s typically installed in layers and offers enhanced durability in extreme temperatures.
Key Benefits:
- Strong, flexible membrane
- Good resistance to tears and punctures
- Suitable for cold climates
- Often reinforced with fiberglass or polyester
Typical Lifespan: 20–25 years
How to Choose the Right Commercial Roof
There’s no one-size-fits-all solution when it comes to commercial roofing. The best system for your property depends on several key factors:
Building Type and Use
Different facilities have different needs. A warehouse may prioritize durability and low cost, while an office complex may focus on aesthetics and energy savings.
Roof Design
The slope, size, and layout of your roof will influence which materials and systems are suitable. Flat roofs, for instance, need effective drainage and durable waterproofing.
Climate Conditions
Denver’s mix of intense sun, snowfall, and hail demands materials that can handle rapid temperature swings and weather extremes.
Energy Efficiency Goals
If reducing utility costs is a priority, consider reflective roofing materials like TPO, PVC, or metal that deflect heat and improve insulation.
Budget and Lifecycle Costs
While some systems are cheaper upfront, others offer better long-term value through durability and low maintenance needs.
Roof Maintenance and Inspections
No matter which system you choose, ongoing roof maintenance is essential to extend your roof’s life and prevent costly surprises. At Integrity Pro Roofing, we offer scheduled inspections and preventative maintenance services designed to catch issues early and maximize performance.
Our maintenance checks typically include:
- Visual inspections for damage or wear
- Drainage system assessments
- Flashing and seam inspections
- Membrane or panel evaluations
- Detailed reports and repair recommendations
Trust Integrity Pro Roofing for Your Commercial Roofing Needs
Your roof is too important to leave to chance. At Integrity Pro Roofing, we’re proud to be a trusted name in commercial roofing throughout Denver and the surrounding area. Our team has years of experience working with all major roofing systems and materials, with a focus on flat and flat metal roofing for commercial properties.
Whether you’re looking to replace an aging system, explore energy-efficient upgrades, or need expert repairs and inspections, we’re here to help. Our work is always backed by high standards, transparent pricing, and lasting results.
Contact us today to schedule a consultation or request a customized estimate for your commercial roofing project.
