When considering a roof replacement, there are numerous options available, each with their own unique benefits and drawbacks. A popular choice among these is a rubber roof, also known as an EPDM (ethylene propylene diene terpolymer) roof. EPDM roofs are renowned for their durability, flexibility, and ease of installation, making them a favored option for both residential and commercial buildings.
Like with any roofing investment, EPDM comes with its own set of advantages and disadvantages that should be carefully weighed before making a decision. This guide will help you explore these pros and cons in detail to determine if EPDM is the ideal choice for your commercial building. If you are still unsure about the suitability of EPDM roofing for your building, consulting our experienced roofing contractors at Reliable Roofing can provide valuable professional insight.
What is EPDM Roofing?
Ethylene propylene diene terpolymer, or EPDM, is a synthetic rubber roofing membrane that is extremely durable and typically used for low-slope buildings. Ethylene and propylene are the two main materials of EPDM roofing, and they are derived from oil and natural gas.
EPDM roofing is available in thicknesses from 45 to 90 mil and can come in a range of widths from 7.5 feet to 50 feet. The EPDM material is available in black and white and can either be installed fully adhered, or be mechanically attached or ballasted in which liquid adhesives or specially formulated tape is used to seal the seams of the roofing system.
Advantages of EPDM Roofing
EPDM is commonly used for commercial roofing because it is sustainable and durable enough to withstand harsh weather conditions. The following are the main advantages of EPDM roofing.
1. Cost-Effective
EPDM roofing is a more cost-effective option compared to other roofing types, making it a popular choice for low-sloped roofs. Although contractor and manufacturer costs may differ, price-conscious building owners frequently select this material for its affordability. In general, EPDM roofing costs several dollars less per square foot than other roofing materials.
2. Eco-Friendly
Most EPDM roofs are black, but they can also come in white which reflects UV rays and reduces energy costs. Their versatility also allows compatibility with rooftop gardens and solar panels. Lightweight and adaptable, EPDM can fit any roof shape or style while offering consistent benefits. Additionally, EPDM is easy to produce, requiring minimal effort and materials, and it is 100 percent recyclable!
3. Fire Resistant
EPDM is a fire-resistant material with a very high ignition temperature and flame-retardant properties. Even when exposed to flames, EPDM is self-extinguishing and greatly reduces the release of heat and smoke, as well as the spread and duration of the fire.
4. Long Lasting
AN EPDM roof can last as long as 50 years if it is installed correctly and receives the proper maintenance. One of the reasons EDPM roofing is so durable is because the membrane is resistant to UV radiation which reduces the risk of damage from the sun. They are also resistant to damage from wind and hail of up to three inches, and they are virtually leak-proof when properly maintained.
5. Lower Energy Costs
EPDM is often paired with polyiso insulation and is also available in white, enhancing its energy efficiency. When properly installed, EPDM excels at keeping the sun’s heat out and retaining warmth during colder months. To extend its lifespan and increase reflectivity, it can be coated, further boosting energy efficiency. EPDM roofs are available in thicknesses of 45, 60, 75, and 90 mil, and the installation cost rises with thicker materials. Nevertheless, an experienced roofer, such as Reliable Roofing, can expertly install it for you.
Disadvantages of EPDM Roofing
While EPDM roofing certainly has its advantages, there are disadvantages to consider including the installation cost and aesthetic. The following are the main disadvantages of EPDM roofing:
1) Installation Cost
As we mentioned, the cost is an advantage of EPDM roofing as ballasted EPDM systems are relatively inexpensive roofing options compared to others. However, fully adhered or mechanically attached systems tend to be slightly more costly than EPDM’s thermoplastic counterpart, TPO. Since cost can be both an advantage and a disadvantage, it’s crucial to work with a contractor that can manage the installation method that best suits your building’s specific needs. Be cautious of companies that claim expertise in this material without actual experience. Many roofers who claim to know how to install EPDM correctly lack the proper training.
2) Problems with Lack of Maintenance
While many manufacturers offer reinforced EPDM roofing, most EPDM roof installations are non-reinforced, which makes them more prone to punctures. As EPDM ages, it can shrink by up to 4%, causing it to bridge across the substrate like a drum skin rather than fitting snugly. This phenomenon leaves your EPDM roof and building most susceptible to damage. Bridging increases the risk of punctures, making regular maintenance crucial. Make sure a qualified roofing contractor like Reliable Roofing inspects your EPDM roof at least twice a year to identify and address any issues as the roof ages.
3) Not Pretty to Look At
In some locations, a black rubber roof can be visually unappealing, especially on low roofs of apartment buildings or hotels where it is visible from higher floors. In such cases, consider using white EPDM or digitally patterned PVC. Additionally, the material can be painted with acrylic coatings specifically designed for roofs. You might be surprised at how much a touch of color can enhance the aesthetic appeal of the roof.
Work with Reliable Roofing for EPDM Roofing Installation
EPDM roofing is already a popular option due to its durability, sustainability, and cost-effectiveness. The use of EPDM across industries is expected to increase with an anticipated market growth at a compound annual growth rate (CAGR) of 6.2% by 2032.
If you believe EPDM roofing is the right choice for you, it’s crucial to hire a trusted professional roofer for the installation. As previously mentioned, this isn’t a DIY task; it demands expertise and experience to ensure a durable, leak-free roof.
At Reliable Roofing, our professionals are not only trained and experienced but also insured up to $6 million for your peace of mind. Serving the Chicagoland area, we specialize in repairing, replacing, and maintaining various roofing materials for buildings of all types. Additionally, we can recommend alternative materials and warranties that might better suit your needs and budget.
For more information or to receive a free estimate on EPDM roofing installation for your building, contact Reliable Roofing at (815) 981-9898.