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TPO vs PVC

TPO and PVC are both thermoplastic single-ply membranes with seams welded by hot air, so they install much the same way. The difference is the chemistry: PVC is made flexible with plasticizers, and manufacturers document its resistance to grease, oils and many chemicals.

Side by side

FeatureTPOPVC
Warranty availableUp to 30 years from manufacturers, on 80-mil sheetUp to 30 years from some manufacturers
Thickness or build45, 60 or 80 mil50, 60 or 80 mil; some lines 40 or 72 mil
SeamsHot-air weldedHot-air welded; some panels factory-welded
SurfaceWhite, tan or gray as standard; white reflects mostWhite or colored; white is most reflective
AttachmentFastened, adhered, induction-welded or ballastedFastened, adhered or ballasted
Grease, oils and fuelsElevate says PVC may be better where grease is heavyResists animal fats, grease, oils and fuels
Solar reflectance (white)0.77 to 0.79 new, about 0.70 after 3 years86 to 87% new, about 70% after 3 years

Which to choose

Choose TPO if

  • Grease and chemicals don't reach the roof. That is the case where Elevate says PVC may be the better choice.
  • You'd rather not manage plasticizers: PVC's flexibility depends on them staying in the sheet, and asphalt and polystyrene draw them out.
  • The building stays occupied: self-adhered TPO cuts odor and VOCs during installation.

Choose PVC if

  • Kitchen exhaust, oils or fuels reach the roof: PVC resists animal fats, grease, oils and fuels.
  • You want the most reflective sheet when new: white PVC lists 86 to 87% reflectance.
  • You want fewer welds made on the roof: Duro-Last welds up to 85% of the seams in its factory.

More on each system

  • TPO roofing
    How TPO membrane is attached and welded, where it falls short, what earns an FM hail rating, and the warranty terms manufacturers offer.
  • PVC roofing
    What a PVC roof is, why it stands up to grease and chemicals, how it goes down, what affects hail ratings, and the warranties manufacturers offer.

Sources

  1. Elevate (Amrize Building Envelope), UltraPly TPO Roofing Systems
  2. Elevate (Amrize Building Envelope), UltraPly TPO Roofing Systems
  3. USACE / NAVFAC / AFCEC (Whole Building Design Guide), UFGS 07 54 23 Thermoplastic-Polyolefin Roofing (August 2025)
  4. USACE / NAVFAC / AFCEC (Whole Building Design Guide), UFGS 07 54 23 Thermoplastic-Polyolefin Roofing (August 2025)
  5. Carlisle SynTec Systems, Sure-Weld TPO Reinforced Membrane Product Data Sheet (01.28.26)
  6. Carlisle SynTec Systems, Sure-Weld TPO Reinforced Membrane Product Data Sheet (01.28.26)
  7. Sika Corporation, Sarnafil S 327-72 Product Data Sheet
  8. Sika Corporation, Sarnafil S 327-72 Product Data Sheet
  9. Carlisle SynTec Systems, Sure-Flex PVC Membrane Product Data Sheet
  10. Carlisle SynTec Systems, Sure-Flex PVC Membrane Product Data Sheet
  11. Duro-Last, Custom Fabricated PVC Membrane Roofing System
  12. Duro-Last, Custom Fabricated PVC Membrane Roofing System
  13. Duro-Last, Membrane Reference Guide
  14. Duro-Last, Membrane Reference Guide
  15. Sika Corporation, Sarnafil G 410-60 Product Data Sheet
  16. Versico Roofing Systems, Non-Compatible Substrates for PVC
  17. Johns Manville, JM PVC - 60 mil MIN Product Data Sheet (RS-9275)
  18. Johns Manville, JM TPO 80 mil Thermoplastic Polyolefin Membrane data sheet (RS-8634)
  19. Carlisle SynTec Systems, TPO Fully Adhered 25- and 30-year Warranty Submittal Sheet
  20. Elevate (Amrize Building Envelope), UltraPly Platinum TPO System
  21. Johns Manville, JM PVC - 80 mil Product Data Sheet (RS-8923)
  22. Johns Manville, JM TPO 45 mil Thermoplastic Polyolefin Membrane data sheet (RS-8632)
  23. ICC Evaluation Service, ESR-1184: Carlisle Ballasted Single-Ply Roofing Systems, EPDM and TPO membranes (revised May 2026)
  24. Johns Manville, JM TPO 60 mil Thermoplastic Polyolefin Membrane data sheet (RS-8633)
  25. Johns Manville, JM TPO 60 mil Thermoplastic Polyolefin Membrane data sheet (RS-8633)
  26. Elevate (Amrize Building Envelope), UltraPly TPO Roofing Systems: membrane
  27. Sika Corporation, Roofing Specification: Sarnafil G 410 Ballasted
  28. Sika Corporation, Roofing Specification: Sarnafil G 410 Ballasted
  29. Carlisle SynTec Systems, Sure-Flex KEE HP Membrane Product Data Sheet
  30. Johns Manville, JM TPO SA - 60 mil

Updated October 2026.