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EPDM (Ethylene Propylene Diene Monomer)

EPDM, or Ethylene Propylene Diene Monomer, is a synthetic rubber material that is durable and flexible. It is used in many industries, including construction, automotive, and HVAC. 
 
Properties
    • Weather resistant: EPDM can withstand UV radiation, ozone, and weathering. 
       
    • Temperature resistant: EPDM can withstand extreme temperatures, including low temperatures of -40 °C. 
       
    • Durable: EPDM is resistant to tearing and abrasion, and can last over 50 years. 
       
  • Flexible: EPDM is flexible and has good elastic properties. 
     
  • Sound insulating: EPDM is a good sound insulator, which can help reduce noise in air conditioning systems

Roofing Membranes Comparison

TPO (Thermoplastic Polyolefin)

  • Single Ply made with blend of ethylene propylene rubber and polypropylene
  • Easy to install and Great Seam Strength due to Heat Weld capability and adhesives
  • Energy Star Rated
  • Fungal and mold resistant
  • Durability that lasts
  • Resistance to mold, punctures, and tears.
  • The heat-reflective properties of TPO help reduce energy consumption, making it an eco-friendly choice for savvy property owners.
  • Available in multiple colors including white
  • 25-30 Years

EPDM (Ethylene Propylene Diene Monomer)

  • Single Ply made with synthetic rubber material
  • Easy to install
  • Bit more expensive than TPO
  • Durable that lasts 
  • Resistant to punctures (not as good as TPO, PVC and Mod Bit)
  • Black color (limited color choices but does have white)
  • Not as UV resistant as other membranes
  • 20-25 years

Modified Butimen

  • 2 Ply system with a Base Sheet and typically we use this for Overlays
  • Asphalt membranes with polymerized rubber or plastic and is reinforced with fiberglass
  • Ideal for overlay on Tar or asphalt roofs
  • Heat resistant
  • Puncture a tear resistant
  • Typically last less years than TPO or EPDM

PVC

  • Good on punctures 

  • Great initial flexibility, due to the addition of plasticizers

  • Great seam strength due to heat-welded seams

  • Highly reflective – white 

  • Very chemical-resistant compared to other membranes

  • Good warranty programs

  • Bleed-out during welding confirms the quality of the weld visually