Low Slope | Commercial

Low slope roofing systems or "membranes" have three general classifications:

  • Built-Up Roof (BUR) Membranes
  • Modified Bitumen Membranes
  • Single-Ply Membranes: Thermoplastic Membranes - (PVC, TPO) or Thermoset Membranes - (EPDM)

Most low slope roofing membranes have three definable components:

  • Weatherproofing Layer(s): The most important component because it stops water from entering the roof assembly.
  • Reinforcement: This component adds strength, puncture resistance and dimensional stability to a membrane.
  • Surfacing: This component protects both the Weatherproofing and the Reinforcement from sunlight and weather. Some surfacing components provided additional benefits like: increase fire resistance, improved traffic and hail resistance and increased solar reflectivity. It should be noted; that some roof membranes may have components that perform more than one of these functions.
  • Built Up Asphalt

  • Insulation

  • Modified Bitumen

  • Single Ply