The Induction Weld Plates are designed to attach insulation or coverboards to the deck while providing a non-penetrating mechanical attachment of TPO or PVC singly-ply membranes utilizing an induction weld bond to the Induction Weld Plate. Induction Weld Plates are approximately 3-3/8" in diameter. Plates are approved for use with steel, wood or structural concrete roof decks. The Induction Weld Plates can be installed using #15 EHD, Tru-Spike Fasteners, and PFC Purlin Drill Point Fasteners.