Materials / EPDM Membrane

EPDM Membrane

single-ply

A single-ply synthetic rubber membrane for low-slope roofs, valued for its long field track record and flexibility. Commonly black; ballasted, mechanically attached, or fully adhered.

Category family
single-ply
Typical lifespan
20–30 years
Typical wind resistance
FM-rated assemblies to 90-150 mph depending on attachment
Typical fire rating
Class A
Weight per square
30–45 lbs
Cost band
$$
Slope suitability
low
Typical warranty
20–30 years
Pros
  • decades-long proven field history
  • flexible across a wide temperature range
  • straightforward installation and repair
Cons
  • black membranes absorb heat unless coated
  • seams historically a maintenance point
  • less puncture resistant than some alternatives

Sources