Midwest Roofing Blog

Midwest Roofing provides roofing repair and installation services at the Lake of the Ozarks, Jefferson City, and Columbia areas. Our blog contains posts rich with tips and tricks on maintaining and protecting your home or commercial building.

Understanding the Different Types of Single-Ply Roofing Systems EPDM and TPO

Single Ply Roofing Systems

When the roof of your commercial or industrial building is in need of replacement, a single-ply roofing system may be your best option in terms of value, speed of installation, and durability. Midwest Roofing offers two different types of single-ply roofing, EPDM and TPO. This post will help you understand these two different types of single-ply roofing systems.

EPDM (Ethylene Propylene Diene Terpolymer)


  • Has a long track record of durability and longevity in the roofing industry.
  • EPDM is a rubber compound that is resistant to temperature fluctuations, UV radiation, and degradation caused by ozone exposure.
  • EPDM is manufactured in large sheets which means faster installation and less seams to seal.


  • Although very dourable, EPDM is not resistant to hydrocarbons that are commonly found in oils, fuels, and cooking grease. This may be an important factor in your roofing decision if your commercial building manufactures or uses these substances.
  • EPDM is considered a thermoset material. A thermoset material does not soften when heated so the seams in an EPDM roof must be sealed using tapes or adhesives.

TPO (Thermoplastic Olefin)


  • TPO is a relatively new single-ply roofing material that is made from ethylene propylene rubber.
  • Although TPO hasn't been around as long as EPDM, it is gaining popularity in the roofing industry. According to this article on "TPO roofing membranes have been manufactured in the US since the early 1990's and are now the fastest growing segment of the US single-ply roofing industry."
  • TPO shares some of the same characteristics as EPDM as well as high flexibility, resistance to punctures and tears, and resistance to hydrocarbons.
  • Highly reflective which translates into cooler roof temperatures and decreased HVAC costs.


  • While TPO is fast becoming a popular roofing choice, it is still relatively new in the industry.
  • Unlike EPDM, TPO is a thermoplastic, so the seams must be hot-air welded together to create a water-tight seal. And while hot-air welded seams may seem more desirable over tape or adhesive sealed seams, hot-air welding may add complexity and time to the roof installation.

For more information about these and other commercial roofing systems or to schedule a free roof inspection and quote contact us today.

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Midwest Roofing is Expanding and Hiring Roofers and Laborers!!

WE ARE HIRING!!! We're currently seeking applicants for the following positions: Experienced Roofers and Laborers.

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2015 Brings Growth and Career Opportunities at Midwest Roofing!

With the New Year comes New Changes to Midwest Roofing.  We experienced amazing growth in 2014 and determined that as a company it was time to expand our Team.  We have currently added 3 new sales people but we are still seeking one more person  to complete our team for 2015.  We see great things for the future of Midwest Roofing and are excited to share our growth with the final addition to our team.

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Midwest Roofing is Hiring for a Sales Position!

We have a rare opportunity to add someone to our Sales Team at Midwest Roofing. We are excited to find the right person to fill this Sales Position and we offer a great compensation plan.

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