The Platinum roof system shall consist of Firestone: .090” Platinum EPDM membrane, fully adhered to HailGard, ISOGARD HD, min.1⁄4” DensDeck, min 1⁄4” SECUROCK Gypsum-Fiber or ISO 95+ Polyiso Insulation attached to an acceptable substrate combined with other Firestone roof system accessories as indicated in the following text and tables.