TPO is incredibly popular because of its strength, ease of installation, and longevity. It can be heat-welded during installation since the material has a certain thermoplasticity. This is a huge advantage since seams are usually the weakest part of a roof. In fact, TPO seams are said to be 3-4 times stronger than EPDM systems and 6 times stronger than systems that use glue seams or tape systems! They resistant chemicals, do well in high heat, are flexible in cold temperatures, and are generally quite affordable. With the right installation and maintenance, TPO systems can last 10-20 years. Lastly, if it is important to you that your roof is environmentally-friendly, TPO checks that box as well!
No plasticizers are used in TPO roofing systems, they don’t fall apart from UV radiation, and they come in white (which reflects heat, helping the building stay cool). They can also be made from some recycled materials! TPO is the perfect choice for your “green” building.
TPO does have some negatives, like most roofing systems. Most of its shortcomings are because it is still so new. It doesn’t have the time-tested, reliable reputation that some other roofing systems can flaunt. Also, remember that the strength of all roofs (TPO especially) depends heavily on the quality of installation. If you choose a reliable roofing contractor and take care of your roof with anual maintenance checks, you shouldn’t have any problems with a TPO roofing system.