EPDM Roofing Membrane

An EPDM roofing membrane is a time-tested, single-ply rubber roofing system widely used on low-slope and flat commercial buildings.
Known for its flexibility, durability, and exceptional weather resistance, EPDM is often specified for facilities that demand long-term performance—especially in climates with temperature swings, snow, and hail.

Versico Certified Contractor

All County Roofing is a Versico Certified Contractor, qualified to install EPDM roofing systems in accordance with
manufacturer specifications and warranty requirements.

  • Versico / Carlisle manufacturer-backed EPDM systems
  • WBE-certified, woman-owned contractor
  • Licensed in Idaho & Oregon
  • Commercial low-slope roofing specialists

Boise Office: 2650 S. Cole Rd, #B, Boise, ID 83706 | Call: 208-322-ROOF (7663)


What Is an EPDM Roofing Membrane?

EPDM (ethylene propylene diene monomer) is a synthetic rubber membrane that has been used in commercial roofing for over 60 years.
Manufactured by Versico Roofing Systems (Carlisle), EPDM membranes are engineered for superior flexibility, UV resistance,
and long-term weathering performance.

Unlike thermoplastic membranes, EPDM remains flexible in extreme temperatures, making it highly resistant to cracking, hail impact,
and thermal stress over time. Manufacturer reference: Versico EPDM Roofing Systems


Why EPDM Performs Exceptionally Well in Boise & Northern Climates

Versico EPDM membranes are frequently specified for northern and mixed climates because of their proven performance in cold weather.
Independent testing and long-term field studies show EPDM retains flexibility and durability after decades of exposure.

  • Excellent resistance to UV and ozone degradation
  • Superior hail and impact resistance compared to many plastic membranes
  • Black EPDM promotes snow melt and faster drying
  • Lower risk of condensation in cold climates

These characteristics make EPDM a strong option for warehouses, schools, hospitals, manufacturing facilities, and large commercial roofs
throughout Idaho and Eastern Oregon.


Versico EPDM System Options

Versico manufactures multiple EPDM configurations to meet different building and performance requirements:

  • Non-Reinforced EPDM: 45-mil, 60-mil, and 90-mil options with full weathering thickness
  • Reinforced EPDM: Internal scrim for increased puncture resistance
  • Quick-Applied Tape (QAT): Factory-applied seam technology for consistent splice quality
  • Fully Adhered, Mechanically Attached, or Ballasted Systems

Certain Versico EPDM assemblies qualify for extended warranties, including up to 30-year Total System warranties when installed by a certified contractor and designed to specification.


Why Contractor Certification Matters for EPDM

EPDM is a highly durable membrane—but only when installed correctly. Many enhanced warranty options require installation by a Versico Certified Contractor and adherence to specific system details.

  • Proper seam technology (QAT vs. field-applied)
  • Correct membrane thickness selection
  • Approved adhesives and attachment methods
  • Detailing at penetrations, curbs, and perimeters

Choosing a certified installer helps ensure your roof system aligns with manufacturer requirements and long-term performance expectations.


When an EPDM Roof Should Be Inspected

  • Active or historical leaks
  • Seam separation or flashing deterioration
  • Hail or wind events
  • Before buying or selling a commercial building
  • Approaching warranty milestones

We provide clear, documented commercial roof inspections with repair and replacement options based on actual roof conditions.


Schedule an EPDM Roof Inspection

If you’re considering EPDM for a new roof—or need an expert evaluation of an existing system—our team can help you determine the most cost-effective path forward.

Call 208-322-ROOF (7663) or request an EPDM inspection.