TPO vs EPDM: Is One Better Than The Other?

When it comes to choosing the right roofing material for your commercial property, the decision can be daunting. Among the most popular options are TPO (Thermoplastic Olefin) and EPDM (Ethylene Propylene Diene Monomer) roofing systems.

Each has its strengths and weaknesses, and selecting the best one depends on various factors, including:

• Longevity
• Durability
• Cost
• Energy efficiency
• Aesthetics

In this detailed comparison, we will explore these key differences to help you make an informed decision between TPO vs EPDM roofing systems.

What is TPO Roofing?

TPO roofing is a type of single-ply membrane roofing made from a blend of polypropylene and ethylene-propylene rubber. It is manufactured in large rolls, usually with a white reflective surface. TPO is known for its heat-welded seams, which provide superior strength compared to other roofing systems.

TPO is commonly used in commercial properties due to its durability and energy efficiency. It is particularly popular in regions with high solar exposure due to its reflective properties.

What is EPDM Roofing?

EPDM roofing is another type of single-ply membrane roofing, but it is made from synthetic rubber. It is available in black and white colors and can be installed fully adhered, mechanically attached, or ballasted. EPDM is known for its flexibility and resistance to extreme weather conditions.

EPDM is widely used in commercial and industrial properties, especially in areas prone to severe weather. Its flexibility makes it suitable for various roof shapes and sizes.

Key Differences Between TPO and EPDM Roofing

When it comes to choosing the right roofing material for your property, it’s important to understand what makes them unique. Today, we are breaking down the differences for you.

👴🏼 Longevity

• TPO Roofing: TPO roofs typically have a lifespan of 15-20 years, depending on the quality of installation and maintenance. The heat-welded seams contribute to its longevity by preventing leaks and reducing the risk of seam failure.
• EPDM Roofing: EPDM roofs are renowned for their long lifespan, often exceeding 25-30 years when properly maintained. The material’s resistance to UV radiation and ozone contributes to its durability over time.

💪 Durability

• TPO Roofing: TPO is highly resistant to punctures, tears, and impact damage, making it a durable option for commercial properties. However, it is relatively new compared to EPDM, and its long-term performance is still being evaluated.
• EPDM Roofing: EPDM is extremely durable, especially in harsh weather conditions. It is resistant to UV radiation, ozone, and temperature fluctuations, making it an excellent choice for properties in extreme climates.

💸 Cost

• TPO Roofing: The cost of TPO roofing is generally higher than EPDM, primarily due to its energy-efficient properties and heat-welded seams. However, the overall cost can vary based on the thickness of the membrane and the quality of installation.
• EPDM Roofing: EPDM is considered a more cost-effective option, especially for large commercial properties. Its installation process is straightforward, and the material itself is less expensive than TPO.

💡 Energy Efficiency

• TPO Roofing: One of the standout features of TPO roofing is its energy efficiency. The white reflective surface helps reduce heat absorption, lowering cooling costs during hot months. This makes TPO an excellent choice for properties in sunny regions.
• EPDM Roofing: While black EPDM lacks the reflective properties of TPO, white EPDM can offer similar energy-saving benefits. However, white EPDM is less common and may come at a higher cost.

🏠 Aesthetics

• TPO Roofing: TPO is available in a variety of colors, although white is the most common due to its reflective properties. This offers more design flexibility for property owners looking to match their building’s exterior.
• EPDM Roofing: EPDM is typically available in black and white. While the color options are limited, the material’s sleek appearance can complement various architectural styles.

Installation Process

Each material has a slightly different installation process. Wondering what it will be like? Here’s what to expect:

TPO Roofing

The installation of TPO roofing involves several steps:

• Surface Preparation: The roof surface must be clean and smooth to ensure proper adhesion.
• Membrane Layout: TPO sheets are rolled out and cut to fit the roof dimensions.
• Seam Welding: Hot air welding is used to seal the seams, creating a watertight barrier.
• Edge Sealing: Flashing and edge sealing are essential to prevent water infiltration.

EPDM Roofing

The installation of EPDM roofing also involves multiple steps:

• Surface Preparation: Similar to TPO, the roof surface must be clean and smooth.
• Membrane Layout: EPDM sheets are rolled out and cut to fit the roof dimensions.
• Adhesion: The membrane can be fully adhered, mechanically attached, or ballasted.
• Seam Sealing: Adhesives or seam tapes are used to seal the seams, ensuring a watertight barrier.

Maintenance and Repair

Commercial buildings require a lot of care. So when it comes to maintaining your roofing systems, you’re likely looking for one that doesn’t require a lot of extra work on your end.

TPO Roofing

TPO roofs require regular inspections to identify and address any potential issues. Common maintenance tasks include:

• Cleaning: Removing dirt and debris to maintain the reflective properties.
• Inspection: Checking seams and flashings for any signs of wear or damage.
• Repairs: Promptly addressing any punctures or tears to prevent further damage.

EPDM Roofing

EPDM roofs also require regular maintenance, including:

• Cleaning: Removing dirt and debris to prevent water pooling.
• Inspection: Checking seams and flashings for any signs of wear or damage.
• Repairs: Using adhesives or seam tapes to address any punctures or tears.

Environmental Impact

More and more people are looking for eco-friendly options that lessen their carbon footprint. Here is how your roof can do that for you!

TPO Roofing

TPO roofing is considered environmentally friendly due to its energy-efficient properties. The reflective surface helps reduce the urban heat island effect, and the material is recyclable at the end of its lifespan.

EPDM Roofing

EPDM is also environmentally friendly, as it is made from synthetic rubber and can be recycled. However, its black color absorbs heat, which may contribute to the urban heat island effect.

The Right Roofing System For You

When it comes to choosing between TPO and EPDM roofing for your commercial property, there is no one-size-fits-all solution. Each material offers unique benefits and considerations that cater to different needs and preferences.

Ultimately, the decision will depend on your specific requirements, budget, and long-term goals. By understanding the key differences between TPO and EPDM roofing, you can make an informed choice that will benefit your commercial property for years to come.Ready to take the next step? If you’re ready to invest in a new roofing system for your commercial property, contact our team of experts at Veterans Contracting. We offer comprehensive consultations to help you choose the best roofing solution tailored to your needs. Contact us today to get started!