Single Ply Roofing

Single-ply membranes are factory-manufactured sheet membranes. They generally are categorized as either thermoplastic or thermoset.

  • Thermoplastic materials can be repeatedly softened when heated and hardened when cooled.
  • Thermoset materials solidify, or “set,” irreversibly after heating.

Single-ply roof systems provide strength, flexibility, and long-lasting durability. The inherent advantages of pre-fabricated sheets are the consistency of the quality of the products that are manufactured, the versatility in their attachment methods, and therefore, their broader applicability.

Thermoplastic membranes are based on plastic polymers. The most common types of thermoplastic are TPO (Thermoplastic PolyOlefin) and PVC (polyvinyl chloride). A number of different products in this category are available, each having its own unique formula.

Thermoplastic membranes are identified by seams that are formed using either heat or chemical welding. These seams are as strong or stronger than the membrane itself. Most thermoplastic membranes are manufactured to include a reinforcement layer, usually polyester or fiberglass, which provides increased strength and dimensional stability.

Thermoset membranes are compounded from rubber polymers. The most commonly used polymer is EPDM (often referred to as “rubber roofing”). Thermoset membranes are successful for use as roofing materials because of their proven ability to withstand the potentially damaging effects of sunlight and most common chemicals found on roofs.

Our technical sales professionals will work with you on deciding which product is the best for your job. Call us now at (808) 841-5677 and a technical sales professional will be happy to assist you.