★ Quick Answer
TPO and EPDM are the two dominant single-ply membrane systems for flat and low-slope roofs. Here's how they compare for Texas.
TPO and EPDM are the two dominant single-ply membrane systems for flat and low-slope roofs. Here's how they compare for Texas.
TPO (Thermoplastic Polyolefin)
White surface reflects heat. Heat-welded seams. Typical lifespan 20-25 years in Austin. Cost: $7-$11/sq ft installed.
EPDM (Ethylene Propylene Diene Monomer)
Black rubber. Glued or taped seams. Typical lifespan 25-30 years. Cost: $6-$9/sq ft installed.
Texas Recommendation
For new installs in Austin, TPO's reflective surface delivers measurable cooling-cost savings that pay back the upfront premium in 4-7 years. EPDM remains a good fit for shaded commercial roofs where heat reflection matters less.