Picking the right roofing material for your business is a critical decision that can impact everything from energy costs to long-term durability. Whether you’re starting a new build, replacing an aging roof, or planning future upgrades, understanding your options is the key to getting the best results.
With modern technology offering more options than ever before, from energy-efficient single-ply membranes to long-lasting metal systems, making an informed decision requires careful consideration of multiple factors. In this comprehensive guide, we'll explore the best materials available today for commercial roofing, helping you understand their unique benefits, costs, and ideal applications for different types of commercial properties.
Understanding Commercial Roofing: Why Material Choice Matters
Selecting the right commercial roofing material is a critical decision that goes far beyond aesthetics. Unlike residential roofing, commercial roofs often cover larger areas, face different environmental challenges, and must meet specific building codes and energy efficiency requirements. The right choice can significantly impact your building's energy costs, maintenance requirements, and long-term durability.
Commercial roofs protect more than just the building itself. They safeguard critical assets, costly equipment, and daily operations. A carefully selected roofing system ensures protection while improving overall building performance, supporting sustainability, and lowering future costs.
Top Commercial Roofing Materials Compared

When it comes to commercial roofing, modern technology has given us several highly effective options. Each material comes with its own set of advantages and specific applications, making it crucial to understand their unique characteristics. Let's examine the most popular commercial roofing materials and how they can benefit your building.
Single-Ply Membrane Roofing (TPO, PVC, EPDM)
Single-ply membranes are a top choice for many commercial buildings due to their versatility and strong performance. These synthetic rubber or plastic sheets are manufactured with precise quality control, ensuring consistency in thickness and durability. White membranes are particularly valued for reflecting sunlight and reducing cooling costs.
Average lifespan: With proper installation and maintenance, single-ply membrane roofs typically last 20-30 years, with some premium systems extending beyond this range.
Cost: Single-ply membrane roofing typically costs between $5 and $9.50 per square foot installed. For an average 20,000-square-foot commercial building, total costs usually range from $100,000 to $190,000.
Pros:
- Excellent resistance to UV rays and harsh weather.
- Energy-efficient, especially with reflective white membranes.
- Faster, less labor-intensive installation.
- Flexible enough to handle slight building shifts.
Cons:
- Prone to punctures from sharp objects, requiring regular inspections.
- Repairs may require professional expertise.
- Premium systems can have higher initial costs.
- Improperly installed seams can create weak points.

Modified Bitumen Roofing
Modified bitumen roofing blends traditional asphalt with polymer modifiers to create a strong, multi-layered system designed to withstand harsh conditions. This material is ideal for flat or low-slope roofs and provides a reliable, waterproof barrier. The system’s multi-layer design helps protect against water damage and wear over time.
Average lifespan: Modified bitumen roofs typically last 20-25 years when properly maintained and installed.
Cost: Modified bitumen roofing generally costs between $6 and $9 per square foot installed. For a typical 20,000-square-foot commercial building, total costs range from $120,000 to $180,000.
Pros:
- Exceptional waterproofing capabilities.
- Strong resistance to weathering and wear.
- Flexible and durable, making it suitable for various building types.
- Multi-layer protection adds durability and security.
Cons:
- Installation can take longer due to the multiple layers.
- Higher labor costs compared to simpler systems.
- Less energy-efficient compared to white membrane options.
- Limited color choices.

Metal Roofing Systems
Metal roofing is known for its durability, longevity, and sleek architectural design. These systems can be constructed using materials like steel, aluminum, or copper, with each option offering unique benefits. Thanks to modern coatings and finishes, metal roofs deliver excellent protection while also being energy efficient.
Average lifespan: Metal roofs can last 40-60 years, with some premium systems lasting even longer.
Cost: Metal roofing systems typically range from $7 to $12 per square foot installed. For a 20,000-square-foot commercial building, total costs usually fall between $140,000 and $240,000.
Pros:
- Extremely long lifespan compared to other materials.
- High resistance to fire and extreme weather.
- Minimal maintenance requirements.
- Strong energy efficiency due to reflective surfaces and coatings.
Cons:
- Higher upfront investment compared to other roofing options.
- Installation requires experienced professionals.
- Can be noisy during rain without proper insulation.
- May be vulnerable to dents from severe hail.
The choice of commercial roofing material ultimately depends on various factors including budget, building design, and local climate conditions. While initial costs are important, considering long-term value, maintenance requirements, and energy efficiency often makes premium materials more cost-effective over time.

Materials for Different Commercial Properties
Selecting the right roofing material means considering the specific needs of your building. Different commercial properties face unique demands based on their function, structural design, and exposure to environmental elements. Let’s break down how roofing solutions align with different types of buildings.
Retail Centers
Retail properties require roofing systems that combine durability with aesthetic appeal. These buildings often feature complex HVAC systems and require regular maintenance access.
Important considerations:
- Foot traffic for regular maintenance access.
- Energy efficiency to help control cooling and heating costs.
- Appearance from multiple viewpoints to maintain curb appeal.
- Reliable protection for valuable inventory.
Recommended materials: TPO or PVC single-ply membranes are ideal for retail spaces, offering excellent energy savings, long-lasting protection, and a clean, attractive finish that enhances the overall look of the building.
Warehouses
Warehouses require roofing systems that can handle large spaces and minimize long-term maintenance. With their extensive square footage and valuable inventory or equipment inside, durability and efficiency are key.
Important considerations:
- Weight-bearing capacity, especially for solar panel installations.
- Temperature control to protect sensitive inventory.
- Cost-effectiveness for covering expansive areas.
- Minimal upkeep to avoid disruption.
Recommended materials: Metal roofing and TPO membranes work well in warehouse environments. Metal roofs offer unmatched durability, while TPO membranes provide energy efficiency across large spaces without the need for frequent maintenance.

Office Buildings
Office buildings need a combination of performance and style. These structures often feature complex designs and rely on climate control for employee comfort and productivity, making energy-efficient and visually appealing roofing materials essential.
Important considerations:
- Energy efficiency to maintain indoor comfort year-round.
- Professional appearance that reflects the building’s purpose.
- Noise reduction to minimize disruption from weather or maintenance.
- Seamless integration with HVAC and other building systems.
Recommended materials: PVC or TPO single-ply membranes are great options for most office buildings due to their energy efficiency and sleek design. For high-profile or signature office buildings, metal roofing offers a premium look with long-term performance benefits.
Healthcare Facilities
Healthcare buildings demand roofing systems that provide unmatched reliability. These facilities house sensitive medical equipment, operate 24/7, and require consistent protection to ensure patient comfort. Even minor roofing issues can disrupt daily operations, making durability and performance non-negotiable.
Important considerations:
- Absolute waterproofing to prevent leaks.
- Resistance to chemicals from exhaust and ventilation systems.
- Minimal disruption during installation and repairs.
- Enhanced air quality protection.
Recommended materials: Modified bitumen and PVC roofing systems are top choices due to their chemical resistance, strong waterproofing, and dependable long-term performance.

Educational Institutions
Schools and universities require roofs that are tough, cost-effective, and able to withstand everything from seasonal weather to years of wear. Safety and long-term durability are key factors when choosing the right material, especially given the budget constraints common in public institutions.
Important considerations:
- Long-lasting durability to handle heavy use and exposure.
- Cost-effectiveness to meet tight budget requirements.
- Safe maintenance practices for on-campus environments.
- Seasonal maintenance scheduling to minimize disruptions.
Recommended materials: EPDM and TPO roofing systems offer excellent durability and value, making them ideal for educational institutions. They can handle varying weather conditions while keeping maintenance and energy costs manageable.
Making Your Decision: Key Factors to Consider
Selecting the ideal commercial roofing material involves more than simply comparing costs. Every building has specific requirements, so it’s important to assess how materials will perform based on factors like climate, building function, and energy efficiency. Investing in quality materials and expert installation is often the most effective way to ensure long-term value and protection.
Climate and Weather Considerations
Local climate conditions play a crucial role in determining the most suitable roofing material for your commercial building. Different materials perform differently under varying weather conditions.
Joliet and surrounding areas experience a humid continental climate with hot summers and cold winters, along with significant precipitation throughout the year. These conditions demand roofing materials that can handle extreme temperature fluctuations and moisture. TPO and metal roofing systems typically perform exceptionally well in this region, offering superior protection against both summer heat and winter snow loads.
Budget and Long-Term Value
It’s important to look beyond upfront costs and focus on the long-term benefits of your roofing system. Consider durability, energy savings, and maintenance costs to get the full picture.
- Initial cost vs. lifetime value: While premium materials like metal roofing cost more upfront, their long lifespan often results in lower annual expenses over time.
- Energy savings potential: Reflective materials like TPO can cut cooling costs by 20-30% during the summer.
- Maintenance requirements: Annual inspections, repair costs, and warranty coverage all play a role in determining the total cost of ownership.
Energy Efficiency and Sustainability
Modern commercial roofing systems can reduce your environmental impact while lowering operating costs. The right materials help balance sustainability goals with practical savings.
- Cool roofing options: White or light-colored membranes reflect up to 85% of solar heat, reducing cooling needs.
- Insulation benefits: Proper insulation can reduce annual energy expenses by 10-15%.
- Environmental impact: Recyclable materials like metal and TPO contribute to LEED certification and minimize landfill waste.
The right roofing solution balances performance, cost, and sustainability. By carefully considering climate conditions, budget constraints, and energy efficiency goals, you can select a roofing system that provides optimal value for your commercial property. Remember that working with experienced professionals ensures proper installation and maximizes your investment's return.
The Installation Process: What to Expect

Installing a commercial roofing system is a critical phase that ensures the longevity and performance of your chosen materials. A well-executed process protects your building while keeping business disruptions to a minimum.
Below is an overview of the key steps and how long they typically take:
- Site preparation: Protection of property assets and establishment of safety measures, typically taking 1-2 days depending on property size.
- Material staging: Strategic placement of materials and equipment for efficient workflow and minimal business disruption.
- Installation process: Systematic application following manufacturer specifications, with continuous quality control monitoring.
- Final inspection: Comprehensive review of completed work, including documentation and warranty processing.
- Site cleanup: Complete property cleanup including magnetic sweep and removal of all construction-related materials.
For a standard 20,000 sq. ft. commercial roofing project, the entire installation process typically spans 5-10 days, depending on material type and project complexity.
Roofing Success Simplified
Choosing the right commercial roofing material requires more than just comparing costs—it’s about finding the balance between initial investment, durability, energy efficiency, and maintenance requirements. A well-informed decision provides long-lasting value and ensures your building is protected for decades.
Remember, the success of your roofing project depends not only on the materials but also on proper installation and regular upkeep.
At Greater Midwest Exteriors, we've been serving Joliet and the surrounding areas for over 30 years, providing expert commercial roofing services with a commitment to quality and customer satisfaction. Contact us today for a free consultation, or visit our website to learn more about our comprehensive commercial roofing services in Joliet, Will County, and throughout the Chicago metropolitan area.