Types of Flat Roofs When it comes to flat roofs in Modesto , we understand that one size does not fit all. That's why we offer a variety of options, including EPDM, TPO, and PVC roofs. Each type has its unique advantages and disadvantages. We provide expert guidance to help you make an informed decision that aligns with your specific needs and budget. EPDM is known for its durability and resistance to UV rays, making it a cost-effective choice. TPO offers excellent energy efficiency and is environmentally friendly. PVC roofs are highly resistant to chemicals and pollutants, making them ideal for commercial properties.