Single-ply TPO membrane is one of the most common roofing system installed on commercial roofs in Nashville and around the United States. So, what is it about TPO that roofers like so much?
Thermoplastic polyolefin (TPO) is a white roofing membrane known for its energy efficiency, strength and durability. Compared to the EPDM rubber and tar roofing used in previous decades, the white TPO reflects rather than absorbs the sun’s energy. The heat reflection translates to cooler roof tops and less energy transferring into the building beneath. This often provides noticeable savings in cooling costs during warmer months. Additionally, TPO is more resistant to punctures and deterioration than previously installed roofing systems, allowing it to maintain it’s integrity for decades.
TPO roofing systems are almost universally applicable on flat roofs and can be fully adhered, mechanically fastened, or ballasted. Once laid, sheets of TPO are bonded through a heat welding process that results in seams that are stronger than the material itself. To save on costs, TPO is sometimes overlaid on existing roofing systems, as long as the addition of the new layer does not exceed local code requirements. It can even be installed over metal roofs! Many large warehouses have metal roofing systems, these provide a long life, but eventually the metal naturally deteriorates. Rather than replace with another costly metal system, we often recommend customers choose to “retrofit” the metal with a TPO system. During this process, the metal flutes are filled with custom fit EPS (polystyrene) to create a flat surface and TPO is then installed.
It is important to note, even with these benefits, each building is different. Call Pinaire Roofing @ (615) Roofing today to discuss what system is best suited system for your roof.