Insulation and Cover Boards


SeparatoR® is a ½” polyisocyanurate board designed especially for recover and metal-retrofit roof systems.  During the installation of these systems, a roof board is often used to separate the old roof from a new mechanically-attached single ply membrane.  SeparatoR is the ideal board for this application. Unlike wood fiber boards, SeparatoR’s  polyiso foam enjoys a R-value of 2.8,  nearly double the 1.5 R-value associated with wood fiber.

SeparatoR is comprised of a 20psi foam core that is bonded with glass-reinforced (cellulose) facers allowing the board to provide a solid substrate for any recover or metal retro-fit roof system.  The board is approved for use in roof systems requiring a JM Peak Advantage® Guarantee when installed in approved mechanically-fastened single ply assemblies.

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