Thermoplastic roofing membranes are single-ply and can be installed using a variety of methods, the most common installation methods being mechanically attached and fully-adhered. Thermoplastic refers to a synthetic substance that is softened when heated, but hardens upon cooling. This roofing material can be fully adhered, mechanically fastened, or ballasted. TPO seam strengths are reported to be three to four times higher than EPDM roofing systems.
This is a popular choice for "Green" building as there are no plasticizers added and TPO does not degrade under UV radiation. It is available in white, grey, and black. Using white roof material helps reduce the "heat island effect" and solar heat gain in the building.
TPO roofs are durable; resisting dirt, bacteria, algae and debris build-up. It's flexibility makes it highly resistant to tears, punctures and impact damage. This flexibility also allows for a building’s movement and setting, without compromising the roof’s performance. Hot-air welded seam strengths are as much as 3-4 times greater than EPDM adhesive and tape seams.
One of the factors that makes TPO roofing attractive both in residential and commercial construction is its reasonable cost. Being a less labor-intensive installation process, the overall cost of a TPO replacement system is often times less costly than other commercial roofing systems.
The solar reflective properties of white TPO roofs contribute to reduction of energy waste from HVAC systems. Moreover, reflecting sun’s ultraviolet rays leads to the mitigation of the heat island effect in urban areas and contributes to cooler interior temperatures inside. Also, TPO is one of the few 100% recyclable roofing materials available.