EPDM Membranes


EPDM Membranes

ZMS’s EPDM waterproofing membranes provide reliable, long-term protection for roofs, water containment systems, and below-grade structures. These high-quality rubber sheets offer exceptional durability with a proven 20-30 year service life, maintaining flexibility even in extreme cold (-45°C). The material’s inherent resistance to UV radiation, ozone, and thermal cycling ensures performance in harsh environments. Available in both self-adhesive and torch-applied versions, our membranes allow for seamless installations that minimize leak points. White membranes provide solar reflectance for energy-efficient buildings, while black offers maximum durability. EPDM is environmentally preferable to PVC or bitumen membranes, containing no plasticizers or halogens. Custom widths and thicknesses are available to meet specific project requirements.

Specification

High‑Performance EPDM Roofing & Waterproofing Membrane

  • Material Composition: 100% virgin EPDM rubber (ethylene propylene diene monomer)
  • Thickness Range: 0.45 mm – 3.0 mm (45 mil – 120 mil)
  • Sheet Widths & Lengths: 1 m to 6 m wide rolls; standard lengths of 10 m, 20 m, and 30 m
  • Tensile Strength: ≥ 9.5 MPa (ASTM D412)
  • Elongation at Break: ≥ 300% (ASTM D412)
  • Shore A Hardness: 60 ± 5 (ASTM D2240)
  • Ozone & UV Resistance: No cracking or crazing after 168 hours (ASTM D1149)
  • Temperature Range: −40 °C to +120 °C continuous service
  • Color Options: Black (standard); Gray and White (custom order)
  • Standards & Approvals:
  • EN 13956 (Waterproofing sheets for roof waterproofing)
  • ASTM D4637 (Specification for EPDM sheet roofing)
  • FM 4470 Approval
  • Applications: Flat roofs, pond liners, green roofs, flashings, expansion joints

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