Rubber Roofing Options: Choose the Right One
When it comes to durable and cost-effective roofing options, rubber roofing is a solid choice for commercial buildings. Known for strength, energy efficiency, and resistance to weather, rubber roofing materials are especially popular for flat roofs and low-slope roofs where other materials like asphalt shingles might fall short.
But, not every rubber roof is ideal for every situation. Put the wrong rubber roof in the wrong environment and you risk premature failure.
Before installing a new roof, it’s essential to research which option best suits your building’s needs.
What Is Rubber Roofing?
Rubber roofing is a type of single-ply membrane designed to be installed in large sheets with fewer seams. It’s made from synthetic rubber compounds like ethylene propylene diene monomer (EPDM), thermoplastic polyolefin (TPO), and polyvinyl chloride (PVC).
Why is Rubber Roofing a Popular Roofing System?
Rubber roofing is a popular commercial choice. It’s known for its water resistance, energy efficiency, and impressive lifespan. Plus, in some instances a rubber roofing membrane can be installed directly over an existing roof, making it a more cost-effective option for roof replacement.
Types of Rubber Roofing Explained
EPDM Roofing
EPDM roofing (ethylene propylene diene monomer) is a staple in the roofing industry, especially for flat roofs and low-slope applications.
This single-ply membrane is well-suited for withstanding extreme weather including high winds and fluctuating temperatures. EPDM rubber roofing is UV-resistant and highly durable.
Benefits
EPDM is relatively easy to install and is one of the more affordable rubber roofing materials. It’s also eco-friendly due to its long lifespan and can be recycled at the end of its life.
Drawbacks
While EPDM roofing systems are known for their durability, they are more susceptible to punctures than other options like TPO or PVC, especially if the roof sees regular foot traffic. EPDM also doesn’t have the best curb appeal.
Best For:
EPDM is a good option for large commercial roofing projects where cost-effectiveness is key.
TPO Roofing
Thermoplastic polyolefin (TPO) is another common rubber roofing material. Out of all the rubber roofing types, TPO roofs are considered the greenest. These single-ply membranes are popular for their energy efficiency, with a light-colored surface that reflects heat and reduces cooling costs.
In addition to energy benefits, TPO is a weather-resistant roofing solution that stands up well to UV exposure, chemicals, and microbial growth. (But, keep in mind that it doesn’t do well in extreme hot or cold temperatures.)
Benefits
TPO is highly resistant to tears and punctures. It’s also more resistant to chemical exposure than EPDM, making it a nice option for industrial buildings.
Drawbacks
TPO’s life expectancy can vary depending on the manufacturer and the conditions where it’s installed. Regular maintenance is also extremely important. It can last anywhere from 15 to 30 years. The more extreme the climate, the more likely your TPO roofing will fail early.
Best For:
TPO is best for buildings in areas with milder temperatures and commercial roofing properties where energy efficiency is a priority.
PVC Roofing
PVC roofing (polyvinyl chloride) is a type of rubber roofing membrane known for its puncture and fire resistance. PVC roofing systems offer a longer life expectancy than other rubber roofing types, but that longevity also depends on the manufacturer.
PVC is fairly resistant to chemicals and may be a good option for roofs with penetrations and areas where leaks or chemical exposure are common.
Benefits
PVC roofing is highly durable and has fire resistance capabilities. It can withstand exposure to chemicals, making it suitable for industrial and commercial settings.
Drawbacks
PVC is generally more expensive than both EPDM and TPO. Additionally, it’s not as eco-friendly due to the manufacturing process.
Best For:
PVC is great for commercial buildings where the roof will be exposed to oils, fats, or other chemicals. It’s a popular choice for restaurants and industrial facilities.
What to Consider When Choosing a Rubber Roofing System
Choosing between roofing types involves understanding your specific needs and environment. Here are some things you may want to consider as you make your selection.
Roof Costs and Budget
EPDM often costs less per square foot, whereas PVC is typically the most expensive. Costs can also vary based on the thickness of the ply and the installation method.
Life Expectancy
While most rubber roofing types have a similar lifespan, some materials may be more durable in certain environments. Be sure to consider your roof’s exposure to UV rays and the range of temperatures it will face.
Roof Deck Condition
The condition of your roof deck affects your roofing options. For example, a ballasted EPDM membrane can only be installed on a roof structure that’s strong enough to support it.
Energy Efficiency
TPO and PVC are highly reflective, which make them attractive choices if you are looking to lower your energy costs.
Common FAQs About Rubber Roofs
What is the typical lifespan of a rubber roof?
Most rubber roofs last between 20 and 30 years, with TPO typically on the lower end of that range and PVC on the higher end. Higher-quality, well-maintenanced PVC can last over 30 years.
How do roofing contractors install rubber roofing?
Rubber roofing installation varies by type. EPDM is often adhered, ballasted, or attached with fasteners, while TPO and PVC are generally heat-welded.
Are rubber roofs more cost-effective than other options?
For flat roofs, rubber roofing is generally more cost-effective in the short term, thanks to its low installation costs, durability, and minimal maintenance needs. However, metal roofs, with their extended lifespan, may prove more economical over the long term.
What warranties are available for rubber roofing?
Warranties vary by material and manufacturer. EPDM can carry warranties that range from 5 to 40 years, TPO from 10 to 20, and PVC 10 to 30. Most reliable roofers will provide a warranty on both the material and the workmanship.
A Smart Investment for Long-Term Durability
Investing in the right rubber roofing types can be a wise choice offering durability, energy efficiency, and longevity.
Whether choosing EPDM roofing for a commercial building, TPO for its reflective benefits, or PVC for its chemical resistance, rubber roofing options provide cost-effective solutions for various needs. As always, consulting a professional roofer ensures you get the most out of your roofing system and make the best choice for your business’s long-term well-being.
