TPO is well-known because of its strength, ease of installation, and longevity. It can be heat-welded during installation because of the material’s thermoplasticity, which is a huge advantage since seams are usually the weakest part of a roof. In fact, TPO seams are thought to be 3-4 times stronger than EPDM systems and 6 times stronger than systems that use glue seams or tape systems! They are resistant to chemicals, do well in high heat, are flexible in cold temperatures, and are generally quite affordable. With proper installation and maintenance, TPO systems last anywhere from 10-20 years. TPO is also environmentally friendly!
No plasticizers are involved in TPO roofing systems, and the roof wont degrade under UV radiation. The roof comes in white, which reflects heat, helping the building stay cool. The roof can also be created from some recycled materials! TPO is the perfect choice for your “green” building.
Like all roofing systems, however, there are some downsides to TPO. Most of its shortcomings center around how new the system is. It doesn’t have the time-tested, reliable reputation which other systems can boast about. Remember that the strength of any roof (TPO especially) depends almost entirely on the quality of the installation. If you choose a reliable roofing contractor and take care of your roof with yearly maintenance checks, you shouldn’t have any problems with a TPO roofing system.