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