What is TPO (Thermoplastic Polyolefin)?
One of the fastest growing membranes for commercial roofing systems in the current market, TPO (Thermoplastic Polyolefin) is a single-ply roofing membrane that is made from the polymerization of polypropylene and ethylene-propylene rubber and is 100% recyclable.
This material, which has become a favorable choice of architects, contractors and roof consultants is due to the advantages it offers when it comes to installation and performance. It is generally installed mechanically or by using adhesives with the white membrane remaining bare throughout the roof’s life.
The first TPO roofing installation took place in 1989, and since then, TPO of millions of square meters have been installed worldwide and the use of this roofing membrane in the U.S has increased from 23 percent to 41% in 7 years.
As more people start favoring roofing systems that reflect heat and reduce energy costs, Thermoplastic Polyolefin roofing membranes have become an appealing choice as they provide a superior resistance to ozone, ultraviolet radiation, and chemical exposure.
TPO roofing systems are a high preference in areas with extreme heat conditions and hot weather, as TPO membranes can reflect Ultraviolet rays and ensure that the roof’s surface and thus, the structure below does not heat up. This roofing system is highly beneficial during cooling degree-days, as it keeps the building cool during the hot months, which in turn, reduces the energy costs spent on cooling and also helps the environment by decreasing carbon emission.
The environmental benefits and the reflectivity of TPO make the material a top choice for commercial buildings as it can help achieve a high degree of sustainability and energy efficiency.
Advantages of TPO Roofing Systems:
- It is strong, flexible and versatile: TPO has a high resistance to impacts, punctures, and tears, while also being flexible enough to tolerate building movement. It can be installed on both – high and low slope surfaces. When it comes to roofing details, this material also has the ability to get reshaped several times after getting heated.
- Ease of Installation: The flexibility of this material ensures it can installed easily and does not require a lot of maintenance throughout the life of the roof. It can either be attached mechanically or fully adhered to the cover board or any underlying insulation.
- It is cost-effective: The ease of installation and low maintenance largely reduces labor costs
- It reduces energy costs: The light colored roofing system does not absorb heat and reflect the sun’s rays, which ensure that the building remains cool. This reduces the need for cooling and thus, the energy costs. It also reduces the UHI (urban heat island) effect, which is beneficial to the surroundings.
- The seams are welded, which can result in a long-lasting performance: A hot-air gun is used to weld the TPO membranes at 926ºC. The bonded seams are more durable than the field of the membrane
- They don’t harm the environment: Not only are TPO membranes 100 percent recyclable, they also do not comprise any ingredients that can be harmful to the environment.