Materials / TPO Membrane

TPO Membrane

single-ply

A single-ply thermoplastic polyolefin membrane with heat-welded seams, widely used on low-slope commercial roofs. Typically white and highly reflective (cool roof).

Category family
single-ply
Typical lifespan
15–30 years
Typical wind resistance
FM-rated assemblies to 90-150 mph depending on attachment
Typical fire rating
Class A
Weight per square
30–50 lbs
Cost band
$$
Slope suitability
low
Typical warranty
15–30 years
Pros
  • reflective cool-roof surface lowers cooling load
  • heat-welded seams
  • no plasticizers
  • cost-effective
Cons
  • formulations and weathering performance vary by manufacturer
  • seam quality depends on welding
  • relatively newer track record than EPDM

Sources