Commercial roofing systems require careful evaluation of multiple factors, including budget limits and performance needs over time. Today’s commercial roofing market features multiple options like Built-Up Roofing (BUR), Modified Bitumen (MBR), Thermoplastic membranes, EPDM, and metal roofing systems. Each option brings specific benefits and factors to consider based on your business requirements.
Key Takeaways:
- Built-Up Roofing (BUR) systems deliver superior protection with multiple layers and strong resistance to severe weather conditions
- Thermoplastic (PVC & TPO) membranes stand out for their energy efficiency and longevity, featuring excellent chemical resistance and lasting over 25 years
- Metal roofing leads in durability with a 40-70+ year lifespan, though initial costs are higher
- Modified Bitumen Roofing (MBR) represents an economical choice while maintaining high standards
- EPDM roofing provides dependable protection with fast installation, though lifespan averages around 10 years
Built-Up Roofing Membrane (BUR): Affordable and Durable for Harsh Conditions
Why BUR Systems Stand Strong
Built-Up Roofing Membrane systems, commonly called rubber roofs, deliver exceptional protection through multiple layers of asphalt and protective stones. I find this traditional roofing method particularly valuable for commercial buildings needing reliable defense against harsh weather.
Here’s what makes BUR systems a smart choice for your commercial property:
- Strong resistance to hail impacts and high winds due to layered construction
- Superior waterproofing capabilities that prevent costly leaks
- Cost-effective installation with proven long-term performance
- Excellent protection from UV rays and temperature fluctuations
- Simple maintenance requirements compared to other roofing types
Each layer serves a specific purpose in creating a barrier that shields your building from environmental threats. The top stone layer reflects sunlight and guards against physical damage, while the asphalt layers beneath form a waterproof seal. Specialized contractors can install these systems efficiently, making them an attractive option for budget-conscious property owners who don’t want to sacrifice quality.
The multi-layer approach creates redundancy in protection – if one layer gets damaged, the others continue defending your building. This dependable performance record has made BUR systems a trusted choice in commercial roofing for decades.
Modified Bitumen Roofing (MBR): Budget-Friendly and Leak-Resistant
Cost-Effective Structure
Modified Bitumen Roofing combines asphalt-saturated felt with fiberglass mesh and mineral-based primer to create a strong, reliable roofing solution. As the most affordable commercial roofing option available, it’s perfect for businesses looking to maximize their investment while maintaining quality standards.
Installation and Performance Benefits
Self-adhesive sheet options make MBR installation straightforward and efficient. The system can be applied directly over existing asphalt shingle roofs, saving time and reducing disposal costs. I’ve found that MBR systems excel at preventing water damage, creating a watertight barrier that stands up to harsh weather conditions. Consider these key advantages:
- Seamless installation process with self-adhesive options
- Compatible with existing asphalt roofing
- Superior leak resistance
- Low maintenance requirements
- Extended lifespan with proper care
- Cost-effective initial investment
Thermoplastic (PVC & TPO) Roof Membrane: Energy Efficiency Meets Durability
Performance Features and Benefits
I recommend thermoplastic roofing membranes for their outstanding performance in commercial applications. PVC and TPO membranes stand apart through their mix of durability and energy-saving properties. PVC excels with premium protection, offering superior resistance to chemicals, fire, and environmental stress – perfect for industrial settings. Its air-welded seams create virtually indestructible bonds that last 25+ years.
Here’s what makes these options smart choices for your commercial building:
- PVC delivers exceptional durability in humid environments with chemical resistance
- TPO provides cost-effective energy savings through its reflective white surface
- Both materials reflect UV rays, reducing cooling costs
- Multiple color options in TPO allow matching to your building’s aesthetics
- Air-welded seams create watertight protection
- Fire-resistant properties enhance building safety
EPDM Roofing: Budget-Friendly but Limited Lifespan
Key Features and Limitations
EPDM synthetic rubber roofing delivers solid performance for flat commercial roofs while keeping costs manageable. This single-ply membrane system comes in black or white finishes and provides reliable protection against water damage, UV rays, and environmental pollutants.
I’ve found that business owners appreciate these key benefits of EPDM roofing:
- Quick and straightforward installation process
- Strong resistance to weather elements
- Cost-effective compared to other roofing materials
- Excellent waterproofing capabilities
- Flexibility in extreme temperatures
Despite these advantages, EPDM has notable drawbacks. The material can be vulnerable to punctures and doesn’t offer the polished look some businesses prefer. With a typical 10-year warranty, its lifespan falls short of premium roofing options. However, for businesses prioritizing affordability without sacrificing basic protection, EPDM remains a practical choice.
Metal Roofing: Longevity and Fire Resistance for High-Value Investments
Performance and Material Options
Metal roofing stands out as a premium choice for commercial buildings, offering exceptional durability with a lifespan of 40-70+ years. I’ve found that proper maintenance practices significantly extend its life expectancy, making it a smart long-term investment.
The material selection plays a crucial role in performance and longevity. Here are the primary options available:
- Galvanized steel – Most cost-effective and widely used
- Aluminum – Ideal for coastal areas due to corrosion resistance
- Zinc – Self-healing properties that prevent scratches
- Copper – Premium choice with natural patina development
Metal roofs provide superior fire resistance ratings and boost energy efficiency through their reflective surfaces. While initial costs run higher than traditional roofing materials, the extended lifespan and reduced maintenance needs result in significant cost savings over time.
For coastal properties, modern protective coatings effectively address potential corrosion concerns. These coatings add an extra layer of defense while maintaining the roof’s reflective properties, which can lower cooling costs during summer months.
Standing seam systems offer enhanced weather protection compared to exposed fastener options, though both styles deliver excellent performance when installed correctly. The choice between them often depends on budget constraints and specific building requirements.
Factors to Consider When Choosing the Right Roofing System
Key Decision Points for Commercial Roofing
I’ve found that selecting a commercial roofing system requires careful evaluation of several critical factors. Your choice will impact your building’s performance and bottom line for years to come.
Here are the essential elements to evaluate:
- Budget considerations – MBR systems offer the lowest upfront costs, while metal roofing demands higher initial investment but delivers superior longevity
- Weather resistance – PVC systems excel in humid environments, though metal roofing needs special consideration in coastal areas
- Energy performance – TPO and PVC materials provide excellent heat reflection, reducing cooling costs
- Durability expectations – Metal roofing leads with a 40-70+ year lifespan, compared to EPDM’s 10-year average
- Installation complexity – TPO offers straightforward installation, while metal systems need specialized expertise
- Environmental impact – PVC provides recyclability benefits despite production concerns
- Visual appeal – TPO systems come in various colors to match your building’s aesthetics
Sources:
APX Construction Group – “7 Types Of Commercial Roofing Compared (Pros & Cons)”
Equity Roofing – “Decoding the Best Commercial Roofing Materials: Analysis”
Tamaro Roofing Services – “Common Types of Commercial Roof Materials”
Heidler Roofing – “Commercial Roofing Material Comparison”
Frequently Asked Questions
What is a Built-Up Roofing (BUR) system and how does it work?
A Built-Up Roofing (BUR) system is a traditional roofing method that involves layering multiple layers of material to create a solid, continuous roof covering or "membrane." It consists of alternating layers of bitumen (asphalt or coal tar) and reinforcing fabrics, topped with a layer of aggregate (usually gravel) for protection. This multi-layer approach provides strong resistance to weather elements, superior waterproofing, and durability[1][3][5].
What are the key benefits of using a BUR system for commercial roofing?
BUR systems offer several key benefits, including strong resistance to hail impacts and high winds, superior waterproofing capabilities, cost-effective installation, and excellent protection from UV rays and temperature fluctuations. Additionally, the multi-layer approach creates redundancy in protection, ensuring that if one layer is damaged, the others continue to defend the building[1][3].
How does Modified Bitumen Roofing (MBR) compare to BUR systems?
Modified Bitumen Roofing (MBR) combines asphalt-saturated felt with fiberglass mesh and a mineral-based primer to create a strong and reliable roofing solution. MBR is more affordable than BUR, offers a seamless installation process with self-adhesive options, and is compatible with existing asphalt shingle roofs. However, MBR may not provide the same level of durability and redundancy as BUR systems[3].
What are the common issues associated with BUR roofing systems?
Common issues with BUR roofing include water leakage, blistering, and surface erosion. Blistering can occur due to poor installation practices, inadequate bonding of the layers, or lack of proper ventilation. Regular maintenance and inspections are crucial to prevent these issues and ensure the longevity of the roof[5].
How do I choose the right roofing system for my commercial building?
Choosing the right roofing system involves evaluating several critical factors, including budget considerations, weather resistance, energy performance, durability expectations, installation complexity, environmental impact, and visual appeal. For example, metal roofing offers exceptional durability and fire resistance but requires a higher initial investment, while EPDM roofing is cost-effective but has a shorter lifespan. Consider your specific needs and the long-term performance and cost implications of each option[3].
People Also Ask
What are the key benefits of Built-Up Roofing (BUR) for commercial properties?
Built-Up Roofing (BUR) systems offer several key benefits that make them an excellent choice for commercial properties. Here are some of the most significant advantages:
- Durability and Longevity: BUR systems are known for their exceptional durability and longevity, often lasting up to 30 years or more with proper maintenance. The multiple layers of asphalt and reinforcing materials create a robust barrier against extreme weather conditions and physical damage[1][4][5].
- Superior Waterproofing: The layered construction of BUR systems provides a watertight seal that is virtually leakproof, protecting the building from costly water damage and leaks[1][2][5].
- Fire Resistance: BUR systems, especially those with coal tar, offer excellent fire resistance, making them ideal for buildings with strict fire codes and safety requirements[1][2][5].
- Cost-Effectiveness: While the initial installation cost may be higher, the long-term economic benefits of BUR systems are significant due to fewer repairs and replacements over time, leading to substantial cost savings[4].
How does BUR roofing compare to other commercial roofing options?
When comparing BUR roofing to other commercial roofing options, several factors come into play:
- Versus Single-Ply Membranes: BUR systems are generally more durable and less susceptible to punctures compared to single-ply membranes. They offer superior waterproofing and fire resistance, although they may require more complex installation and heavier structural support[1][2][4].
- Versus Modified Bitumen Roofing (MBR): MBR is more affordable upfront but lacks the long-term durability of BUR. MBR is easier to install and can be applied over existing roofs, but it may not offer the same level of protection against harsh weather conditions[4].
- Versus Thermoplastic (PVC & TPO) Roof Membrane: Thermoplastic membranes are more energy-efficient and offer superior chemical resistance, but they are generally more expensive than BUR. They also have different installation requirements and may not match the aesthetic of older buildings as well as BUR[4].
What maintenance is required for a Built-Up Roofing system?
Maintaining a Built-Up Roofing system is relatively straightforward and essential for extending its lifespan. Here are some key maintenance points:
- Regular Inspections: Regular inspections are crucial to identify any potential issues early. This includes checking for cracks, blisters, and other forms of damage[1][4].
- Minor Repairs: Timely repairs of minor issues can prevent larger problems from developing. This includes re-sealing or re-surfacing the roof as needed[1][4].
- Cleaning: Keeping the roof clean from debris and ensuring proper drainage can help maintain the integrity of the BUR system[4].
Can Built-Up Roofing systems support heavy foot traffic and equipment installations?
Yes, Built-Up Roofing systems are robust enough to support heavy foot traffic and equipment installations. Here’s why:
- Layered Construction: The multiple layers of asphalt and reinforcing materials in BUR systems provide a strong and durable surface that can withstand heavy foot traffic and the weight of equipment installations[1][2][4].
- Puncture Resistance: BUR systems are resistant to punctures, which makes them ideal for roofs that need to handle tools, equipment, and frequent maintenance activities[2].
Are Built-Up Roofing systems suitable for historic buildings or rooftop gardens?
Built-Up Roofing systems can be a good fit for both historic buildings and rooftop gardens due to their:
- Aesthetic Compatibility: BUR systems can blend aesthetically with older structures, preserving traditional roofing methods and the building's original appearance[1].
- Structural Support: The sturdy foundation provided by BUR systems makes them suitable for supporting the weight of rooftop gardens or green spaces[1].