Carlisle SynTec Systems, the flagship brand of Carlisle Construction Materials (CCM), has been the industry leader in single-ply roofing for more than 55 years. As the largest supplier of commercial roofing products in the world, Carlisle produces high-performance EPDM, TPO, PVC, and FleeceBACK® single-ply roofing membranes, a full line of polyiso and expanded polystyrene insulation, solvent-based and low-VOC adhesives, and other essential roofing accessories.