TPO and PVC install the same way and look alike on the roof. The real differences are grease and chemical resistance, fire resistance, cost and how long each one typically lasts.
Lifespan, cost, maintenance and foot traffic match the commercial roof system comparison. Fire ratings belong to the full roof assembly, not the membrane alone.
The building's use decides most TPO vs PVC choices. If grease or chemicals reach the roof, PVC is the safer pick. If they don't, TPO usually delivers the same performance for less.
Examples are illustrative. The existing roof, the deck and the budget decide the final recommendation.
TPO costs less to install. PVC can close the gap over time on roofs with grease or chemical exposure, where TPO would need more repairs or an earlier replacement. On a clean roof, TPO is usually the lower lifecycle cost.
TPOPVCThe exception that flips it: on a restaurant or processing roof, TPO's lower price rarely holds up. Grease shortens its life, so PVC is usually the better value there.
Yes. Switching from TPO to PVC, or the other way, is common at replacement. The existing roof's condition decides whether the new membrane goes over it as a recover or after a full tear-off.
Core cuts and a moisture survey show how many roofs are on the building, whether the insulation is dry and whether a recover is allowed.
The two membranes are chemically different and cannot be welded to each other. A recover installs a cover board over the old membrane, then the new one.
PVC reacts with asphalt, so it needs a separator layer or cover board when it goes over a built-up or modified bitumen roof.
Wet insulation, a damaged deck or code limits on the number of roof layers mean the old roof comes off before the new membrane goes on.
Start with a quick answer online, then confirm it on the roof. Our crews install and service both membranes, so the recommendation follows your building, not a product line.
Answer 6 quick questions about your building, roof, climate and budget. You'll see your best match and two systems worth comparing.
A local crew checks the existing roof, the insulation and what vents to the roof, then gives you a written recommendation for TPO, PVC or another system.
TPO roofing guideInstallation, lifespan, cost and common problemsPVC roofing guideChemical resistance, installation and best-fit buildingsNot for every roof. PVC is better where grease, oils or chemicals reach the roof and typically lasts a little longer. TPO costs less to install and performs just as well on clean, open roofs, especially in warm climates.
PVC. Kitchen exhaust deposits grease on the roof, and grease degrades TPO faster. PVC is formulated to resist grease and oils, which is why it is the common choice for restaurants and food processing.
PVC typically lasts 20 to 30 years and TPO 15 to 30 years with proper installation and maintenance. Seam quality, drainage and regular inspections affect service life more than the choice between the two.
Generally, yes. TPO sits in a lower relative cost tier than PVC. The final price for either depends on tear-off, insulation, attachment, access and the warranty level.
No. They are chemically different thermoplastics and will not heat-weld to each other. Switching from one to the other means a new membrane over a cover board or a full tear-off.
Yes. Both are typically white and highly reflective, which helps lower cooling loads. Insulation thickness has a larger effect on a building's energy use than the choice between the two membranes.
