We also offer Styrene-Butadiene-Styrene (SBS) roof membranes for greater flexibility, Atactic Polypropylene (APP) membranes for improved plasticity, and Thermoset or Thermoplastic Single-ply roof membranes. Businesses might also want to consider PVC roofs, Thermoplastic Polyolefin (TPO) roofs, Ketone Ethylene Ester (KEE) roofs, Spray Polyurethane Foam (SPF) systems, and Fluid-applied Liquid Membrane Roofing.