Peak roofing construction explains in this blog post the difference between tpo and pvc materials when it comes to commercial roofs.
How to tell the difference between tpo and pvc roofing.
When being attached to the roof material it is either nailed or glued on.
Tpo is the most popular rv roofing material today because of two reasons it is cheap and it is already colored white.
However while the face of both membranes and their installation are virtually identical they are very different systems on the inside.
Similarities of tpo and pvc roofing membranes.
Tpo is thin compared to other membranes usually around 1 1 2 millimeters in thickness.
Tpo which is short for thermoplastic polyolefin came into the roofing market in the early 1990s as a viable alternative to pvc roofing materials.
Yeah 20 years ago and further back a bunch of junk thermoplastics were made.
It instantly became very popular as it was economical and cost efficient.
Polyvinyl chloride pvc used since the 1960s pvc membranes are popular for their easy installation and cheap cost.
Several bad pvcs most of the hypalon products and tpo which at that time was a very new product to the market so new that most manufacturers actually called it tpa thermo plastic alloy since they would routinely change the core supplier ingredients and percentages of each component.