How do the Carlisle membrane families differ?
Carlisle SynTec’s single-ply families include EPDM, TPO, PVC and FleeceBACK products. A product-family name does not specify the deck, insulation, fastener pattern or accessory for a particular assembly. Identify the exact membrane and any fleece backing, then find the applicable system documents. If the existing roof has prior patches or an overlay, treat those as separate evidence to resolve. Surface color and a broad brand label cannot establish material composition or seam method by themselves. A TPO assembly review and a PVC or EPDM comparison should address the same roof area and design assumptions. Clarify attachment, supporting layers, edge termination and penetrations for each candidate. If a project requires an authorized applicator, verify the contractor’s current status and the system’s warranty requirements before describing the work as eligible.