Single Ply
- Single Ply roofing materials are generally referred to as elastomeric (EPDM) or thermoplastic systems.
- Thermoplastic (TPO and PVC) materials are typically reinforced plastic polymers readily formed or changed in shape upon the application of heat. Seams are welded together using hot air equipment.
- Thermoset (EPDM) materials, are made up of synthetic rubber compounds which may or may not be reinforced and do not change shape once heat has been applied. Tapes or Adhesives are used to seam thermoset materials.