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TPO or PVC Commercial Roofing?

TPO or PVC Commercial Roofing?

Guardian Roofing – Dallas, Fort Worth, Keller, Southlake, Denton, Frisco Roofing Company Specializing in Residential & Commercial Roofing.

TPO or PVC Commercial Roofing and How They Compare

Over the last several years, it seemed as if TPO supporters have wanted to push the membrane onto every roof. Certainly the material has done very well and gained a large market share. But other membranes haven’t gone away, and some have a fairly stable market share. It’s easy to understand why single ply hasn’t done well on smaller roofs in urban areas, with their large numbers of penetrations and often chopped-up shapes; for these roofs, mod bit (or possibly a coating system) seems like an obvious choice.

What about PVC? It has a similar reflectivity to TPO and was the original weldable sheet. But there were questions about the plasticizers; what happens as they migrate out of the sheet? TPO was seen as being inherently flexible; over the years, it’s proven itself and has steadily improved in terms of weathering resistance. Manufacturers have been investing heavily in TPO but, surprisingly to some, PVC remains a viable alternative. In fact, we are starting to see investment in new capacity.

Let’s look at a comparison of the performance of the two sheets:

PVC_TPO-chart1[1]

In terms of weathering (i.e., based on the Heat Aging and the Accelerated Weathering tests), TPO has the clear edge over PVC. This may surprise some diehard PVC users, who may be unaware of the advances made in TPO formulation over the last several years.

While TPO has superior weathering and slightly better tear and break resistance than PVC, PVC does have some characteristics that certain customers need or prefer. For example, PVC has better chemical resistance; it does not absorb or get weakened by oils and greases. This means that PVC is the preferred membrane for restaurants and other buildings that have grease traps on the roof.

Also, PVC is slightly more flexible than TPO, which some contractors like. There used to be talk about welding differences, but both membranes weld well. TPO requires higher temperatures but, once a crew has adapted, welding is as straightforward as it is for PVC.

The following chart gives a snapshot of the overall performance of TPO versus PVC:

PVC_TPO-chart2[1]
So next time you’re debating which product would work best for an upcoming roofing job, it may be helpful to refer to the two charts above before you make your decision.

Guardian Roofing: Give us a call at 817-500-4906 or let us schedule a free roofing inspection for you!

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Guardian Roofing and Construction grew up locally and understands how people in this area value their homes. We’re committed to providing superior residential roofing services in the greater Dallas-Fort Worth Metroplex including Arlington, Azle, Denton, Keller, Mansfield, Bedford, Plano, and Southlake, Lantana, Frisco, Colleyville, Southlake, Grapevine. The experts at Guardian Roofing are leaders in the residential and commercial roofing industry and are here to help with your roofing needs.

The Better Business Bureau gave Guardian Roofing and Construction an A+ rating. Owens Corning rated Guardian “Preferred,” along with only 145 other Roofers for the entire state of Texas. We are also members of the Commerce of Fort Worth.

Whether you need a roof repair, routine inspection, TPO roofing, roof restoration or a new roof, at Guardian Roofing and Construction, we’re ready to roll up our sleeves and make it happen.

We highly recommend contact a roofing company after a storm to properly inspect your roof. Inspecting your roof after storm damage can be very dangerous and should be done by a qualified professional. At Guardian Roofing we offer FREE roofing inspections and 24 Hour Emergency Service! Contact Us today or call 817-500-4906

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