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Flat roofs are a popular option for commercial roofing systems. Trust in the professionals at Certified Commercial Roofing in Houston, Texas, to find out which type of flat roof will suit your commercial property best. Two of the most popular commercial roofing options include modified bitumen roofing and TPO roofing. Modified bitumen roofing refers to enhanced compounds of both coal tar pitch and asphalt roofing systems. Modifiers help enhance the product and provide a greater degree of flexibility similar to that of rubber. TPO, or thermoplastic polyolefin, roofing involves a tear-resistant, single-ply membrane that is fully recyclable and UV-resistant. Learn about the pros and cons of these two popular commercial roof systems to help make the most informed decision with Certified Commercial Roofing.

Comparing Commercial Flat Roofing Systems

Certified Commercial Roofing offers installation, inspection, and maintenance on modified bitumen roofing and TPO roofing. Let’s compare these two flat roofing systems to find out more about the advantages and disadvantages of both TPO and modified bitumen roofing.

Cost Efficiency

Modified bitumen roofing typically comes with lower costs for installation. However, the surge in popularity with TPO roofing has encouraged more competitive pricing for TPO installation. While a modified bitumen roof will typically have lower up-front costs, it may require more maintenance and repairs than a TPO roof.


Green Options

An increase in industry standards and green options have also expanded the commercial flat roofing industry. TPO roof systems are fully recyclable and offer greater UV resistance than modified bitumen roofing. The membrane of a TPO roof is considered a greener option than the modified bitumen roofing because the formulation does not include plasticizers. Learn about energy star ratings for various commercial roofing options and find out which roofing system will be more environmentally friendly while still lowering energy costs.



When installed and maintained properly, TPO roofing offers a longer lifespan overall. TPO roofing membranes can be more susceptible to punctures caused by severe weather and sharp objects. In that case, a modified bitumen roofing system may be recommended with a longer lifespan depending on the area of your commercial property.

The Importance of Quality Installation & Repairs

At Certified Commercial Roofing in Houston, Texas, our team understands the importance of quality installation and repairs. When the installation of your commercial roof is done correctly, your investment stretches a lot farther. A proper installation will help cut down on costly maintenance and repairs over the roof’s lifespan. We offer factory-trained certified applicators for every commercial roof installation with Certified Commercial Roofing. Learn why our warranty is the best in the business, and contact us for a free quote today!

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