Best Roofing Materials for Commercial Buildings Explained

Commercial property owners and managers face a critical task when it comes to selecting the right roofing system, balancing durability, cost-efficiency, and overall performance.

The roof is not just a protective layer—it’s an investment that impacts energy efficiency, internal climate control, safety, and building longevity. In this comprehensive guide, we’ll explore the best roofing materials for commercial buildings, comparing their pros, cons, and ideal applications.

Whether you manage a sprawling industrial complex or a multi-story office building, understanding your material options will help you make an informed decision.


Guy Vinyl Siding

Table of Contents

  1. Why Your Commercial Roofing Choice Matters
  2. Factors To Consider Before Choosing a Roofing System
  3. Common Commercial Roofing Systems
    • TPO Roofing
    • EPDM Roofing
    • PVC Roofing
    • Modified Bitumen Roofing
    • Built-Up Roofing (BUR)
    • Metal Roofing
  4. Comparison Table: Top Commercial Roofing Materials
  5. Frequently Asked Questions (People Also Ask)
    • What is the best commercial roofing material?
    • What is the most common commercial roofing?
    • What are most commercial building roofs made of?
    • What are the top 5 roofing materials?
  6. What to Consider When Choosing Commercial Flat Roofing
  7. Is It Time for a New Commercial Roof?
  8. Ready to Take the Next Step?
  9. Guy Roofing: Your Partner for Commercial Roofing Solutions

Why Your Commercial Roofing Choice Matters

A commercial roof must stand up to the demands of daily operations, unpredictable weather patterns, and potential environmental stressors. Choosing the right roofing system can have far-reaching benefits:

  • Longevity: Certain roofing systems can last over 40 years with proper maintenance.
  • Energy Efficiency: The right roofing material can reflect solar heat, reducing cooling costs.
  • Reduced Maintenance Costs: A system designed for durability requires fewer repairs over its lifespan.
  • Protection Against Water Damage: Proper insulation and membrane installation protect your building’s interior from leaks and mold.
  • Aesthetics: Some corporate facilities need a roof that not only performs well but also looks professional and cohesive with the building’s design.

From a financial standpoint, opting for the best commercial roofing material upfront can save you from unexpected repairs, downtime, and premature replacement. Think of it as an investment in the future of your building.

Factors To Consider Before Choosing a Roofing System

No single roofing material is a perfect fit for every commercial building. Here are some considerations:

  • Climate and Weather: Buildings in regions prone to extreme heat or cold have different needs compared to those in areas with frequent rainfall or hurricanes.
  • Roof Slope and Design: Flat roofs need special membranes or coatings to stop water from collecting on them. Steeper roofs usually use metal or shingles.
  • Budget and Lifecycle Costs: It’s not just the initial cost that matters. Maintenance, repair, and replacement costs over time should guide your choice.
  • Energy Efficiency: Cool roofs have reflective surfaces, and coatings can be used to enhance reflectivity, reducing heat absorption and boosting energy savings.
  • Building Use: Warehouses, offices, retail complexes, and industrial facilities have different requirements for durability, insulation, and aesthetics.

Balancing these factors helps narrow down which system is best suited for your specific commercial roof.

Common Commercial Roofing Systems

Below, we dive into the most popular options for commercial roofing, outlining how they work and who they benefit the most.

TPO (Thermoplastic Polyolefin) Roofing

Overview:

TPO has gained popularity for its blend of affordability, durability, and reflective properties. Consisting of a single-ply membrane, TPO typically comes in white or light colors that reflect UV rays.

Advantages:

  • Energy Efficiency: The reflective surface can significantly reduce cooling costs.
  • Ease of Installation: Comes in large sheets, leading to fewer seams and faster installs.
  • Cost-Effective: Competitively priced compared to many alternatives.

Disadvantages:

  • Thickness Variations: Durability heavily depends on membrane thickness.

TPO is ideal for commercial properties in warmer climates where energy savings are a high priority.

EPDM (Ethylene Propylene Diene Monomer) Roofing

Overview:

Often called “rubber roofing,” EPDM has been a mainstay in the commercial roofing industry for decades. It comes in large sheets and can be installed fully adhered, mechanically fastened, or ballasted.

Advantages:

  • Proven Performance: EPDM has a long track record and can last over 25 years with proper upkeep.
  • Flexible and Resilient: Highly resistant to hail damage and extreme temperatures.
  • Simple Repair Process: Punctures or tears can be patched fairly easily.

Disadvantages:

  • Color Absorption: Traditional EPDM is black, absorbing more heat unless topped with a reflective coating.
  • Potential for Shrinkage: Improper installation or poor maintenance can lead to membrane shrinkage over time.

EPDM suits a wide range of climates, especially where durability and cost-effectiveness are key.

PVC (Polyvinyl Chloride) Roofing

Overview:

PVC roofing is another single-ply membrane known for its chemical resistance, making it popular for restaurants and commercial facilities where grease and chemicals can contact the roof.

Advantages:

  • Chemical Resistance: PVC is highly resistant to chemicals, oils, and animal fats.
  • Reflectivity: Similar to TPO, PVC often has a white or light-colored surface for energy efficiency.
  • Durable Seams: Heat-welded seams create strong bonds that are less prone to leaks.

Disadvantages:

  • Cost: PVC tends to be pricier than TPO or EPDM.
  • Brittleness Over Time: PVC membranes can become brittle, especially in very cold climates.

PVC is ideal for facilities that need robust chemical and grease resistance, such as restaurants, manufacturing, or industrial plants.

Modified Bitumen Roofing

Overview:

Modified bitumen roofing blends asphalt with modifiers to create a durable, flexible membrane. Typically, it’s applied in multiple layers, offering excellent waterproofing capabilities.

Advantages:

  • Highly Durable: Resistant to foot traffic, making it suitable for roofs that see frequent human activity.
  • Multi-Layered Protection: Multiple layers of reinforcement add longevity and waterproofing.
  • Ease of Repairs: Small punctures or tears can often be fixed without replacing large sections.

Disadvantages:

  • Installation Complexity: Requires specialized equipment or torch application.
  • Heat Application: Torch-down methods come with safety considerations.

If you’re looking for a robust, time-tested option with excellent waterproofing, modified bitumen roofing is worth considering.

Built-Up Roofing (BUR)

Overview:

Built-Up Roofing (BUR), sometimes referred to as “tar and gravel” roofs, consists of multiple layers of bitumen alternated with reinforcing fabrics and topped with a protective aggregate.

Advantages:

  • Long Lifespan: Multiple layers mean excellent protection and longevity.
  • Proven Track Record: Has been used for over 100 years.
  • UV Resistance: The gravel top layer reflects sunlight and shields the membrane below.

Disadvantages:

  • Labor-Intensive Installation: Each layer must be carefully laid, which can extend project timelines.
  • Odor: Application can produce strong odors that might affect occupied buildings.

BUR suits buildings that value longevity and proven performance, especially where the roof can handle the system’s additional weight.

Metal Roofing

Overview:

Commercial metal roofing usually features panels made from steel, aluminum, or galvanized metal. Designs range from standing seam to corrugated, providing a sleek, modern aesthetic.

Advantages:

  • Exceptional Longevity: Metal roofs can last up to 40-50 years or more with proper maintenance.
  • Fire Resistance: Metal is noncombustible, offering superior fire protection.
  • Low Maintenance: Few seams and durable materials reduce upkeep.

Disadvantages:

  • Higher Initial Cost: Metal’s upfront cost can be substantially higher than single-ply membranes.
  • Noise: Rain or hail can be louder on metal roofs, though insulation can minimize sound.

Metal roofing is a premium choice for property managers seeking long-term durability and a visually striking finish.


Comparison Table: Top Commercial Roofing Materials

Roofing Material Typical Lifespan Key Benefits Potential Drawbacks Ideal For
TPO 20-30 years - Energy-efficient
- Easy install
- Durability depends on membrane thickness Warm climates, cost-conscious managers
EPDM 25-30 years - Proven track record
- Flexible
- Absorbs heat (black color)
- Potential shrinkage
All climates, durability-focused properties
PVC 20-30 years - Chemical-resistant
- Reflective
- Higher cost
- Can become brittle in cold
Facilities with chemical exposure or grease
Modified Bitumen 20-25 years - Excellent waterproofing
- Repair-friendly
- Complex install
- Safety concerns (torch application)
Roofs with foot traffic, mid-range budgets
BUR 20-30 years - Proven longevity
- Multiple layers
- Labor-intensive
- Odor during installation
Long-term reliability, heavier structural designs
Metal Roofing 40-50 years+ - Very durable
- Low maintenance
- Higher initial cost
- Can be noisy without proper insulation
Premium buildings, long lifespan objectives

Frequently Asked Questions

What is the best commercial roofing material?

The “best” commercial roofing material depends on your building’s location, usage, budget, and performance needs. For example, metal roofing offers unmatched longevity, TPO can significantly lower energy costs in warm climates, and PVC excels in chemical resistance. Consulting with a professional roofing contractor like Guy Roofing ensures you match the right material to your specific goals.

What is the most common commercial roofing?

Single-ply membranes like TPO and EPDM are among the most common, largely due to their balance of cost, ease of installation, and reliable performance. They are ideal for flat or low-slope commercial buildings in a variety of climates.

What are most commercial building roofs made of?

Many commercial buildings utilize low-slope systems—commonly TPO, EPDM, or built-up roofing (BUR). Meanwhile, structures requiring extended longevity or showcasing a distinctive architectural look may opt for metal roofing.

What are the top 5 roofing materials?

The top five commercial roofing materials are TPO, EPDM, PVC, Modified Bitumen, and Metal Roofing. Each type offers unique benefits, from cost-effectiveness to high reflectivity and robust durability.

What to Consider When Choosing Commercial Flat Roofing

When dealing with flat or low-slope commercial roofs, consider these specific factors:

  • Drainage: Proper slope and drainage systems are vital to prevent water ponding and potential leaks.
  • Reflectivity: In hot climates, opt for membranes like TPO or PVC for better heat reflection.
  • Foot Traffic: Roofs used for mechanical equipment access or frequent inspections might need a material like modified bitumen or a walkway overlay to handle the extra wear.
  • Building Codes: Local regulations can dictate acceptable roofing materials or certain energy-efficiency standards.
  • Insulation & R-Value: Including the right insulation improves energy savings and occupant comfort.

Selecting the right flat roofing material is crucial for a lasting, leak-free system—and working with an experienced commercial roofing contractor will help you navigate these decisions.

Is It Time for a New Commercial Roof?

Some signs indicate it may be time for a roof replacement rather than a patch job or coating:

  • Chronic Leaks: Frequent or unresolved leaks suggest underlying membrane issues or structural damage.
  • Severe Membrane Damage: Large cracks, punctures, or shrinkage make repairs less cost-effective.
  • Excessive Ponding: If ponding water persists despite correct drainage measures, it may be time for a new system with better design and installation.
  • Rising Energy Bills: As roofs age, their reflective and insulating properties may diminish.
  • End of Lifespan: Even the best-maintained roofs approach the end of their lifecycle eventually.

If you’re unsure whether your roof is approaching the end of its service life, schedule an inspection with a qualified roofing company.

Ready to Take the Next Step?

Choosing and installing a new commercial roofing system can be a complex process. With so many materials, installation methods, and maintenance considerations, it’s wise to seek guidance from experienced professionals. Guy Roofing will:

  • Inspect your existing roof for damage or underlying issues.
  • Provide a comprehensive assessment of which materials best fit your building’s needs.
  • Offer a clear timeline and cost estimate.
  • Outline a maintenance plan to maximize your roof’s lifespan.

Guy Roofing: Your Partner for Commercial Roofing Solutions

At Guy Roofing, we understand the unique challenges property managers, building owners, and facility directors face. Our years of experience installing and maintaining commercial roofing systems across the nation enable us to deliver roofing solutions tailored precisely to your building. From initial inspection to final installation and ongoing maintenance, our team is dedicated to:

  • Quality Workmanship: Every project is completed to the highest industry standards and local code requirements.
  • Unmatched Expertise: Our roofing experts stay current with the latest roofing trends, technologies, and best practices.
  • Client-Focused Approach: We collaborate with you to plan a roofing system that aligns with your budget, timeline, and sustainability goals.
  • Long-Term Value: With comprehensive maintenance programs and extended warranties, we help ensure your investment stands the test of time.

Ready to maximize the durability and efficiency of your commercial building?
Contact Guy Roofing today for a thorough roofing inspection and customized recommendation. Let us help you protect your business for years to come!

Get In Touch

We're your guys! For questions, more information, or to schedule a free inspection and estimate, contact us today.