Division 7 Ebook Page 419 OptiLiner Banded Liner System, 07 21 16

FOAMULAR , Thermal, New Roof, Below Membrane over steel decks. See www.ul.com "Certifications", or FM Approvals "RoofNav" for alternative thermal barrier materials and complete assembly details. C. [Thermal Barrier Material]: Provide one of the following: 1. Gypsum Board: 1/2" (minimum thickness) 2. Rigid Perlite Board: 1/2" (minimum thickness). D. [Overlayment]: For dark mechanically attached, any color fully adhered, or chemically incompatible membranes, provide the following: 1. [Glass mat faced gypsum roof board.] 2. [Flexible glass fiber, nonwoven, non-flammable, corrosion and mildew resistant or other suitable separator (overlayment) sheets shall be used under PVC membranes and other such membranes which contain plasticizing agents. Separator sheet shall have been evaluated and approved by the membrane manufacturer for adequacy as a separator.] E. Membrane Fastening or Adhesion System: Per membrane manufacturer's specifications. F. [Ballast]: For loose laid, ballasted system, provide the following: Note to Specifier: Building height, parapet height, and project wind zone are major factors when specifying a minimum ballast requirement. Design ballasted systems in accordance with ANSI/RMA/SPRI RP-4, Wind Design Guide for Ballasted Single-Ply Roofing Systems. 1. [Rounded Water Worn Gravel or Crushed Stone Ballast: ASTM D448, size [#3, #24, #2, #1].] 2. [Concrete Pavers: Provide a compressive strength equal to [___psi] or greater, maximum water absorption rate of [__% by volume], and dimensions, not exceeding 2" x 2' x 2']. Paver weight must be manageable for removal and replacement purposes. Concrete quality must be suitable for weathering conditions to which it will be subjected. a. Paver Weight: Conform to requirements of ANSI/RMA/SPRI RP-4, Wind Design Guide for Ballasted Single-Ply Roofing Systems. PART 3 - EXECUTION ROOF DECK CRITERIA A. The deck shall be constructed to drain completely free of water within 48 hours following rainfall. B. The dead load carrying capability of the deck must be sufficient to support code mandated live loads and dead loads incident on the roof including the entire roof covering/insulation system. C. The roof deck shall be prepared to provide adequate support for the insulation. ROOF DECK PREPARATION A. [Any deteriorated roof decking shall be repaired or replaced]. B. A thorough inspection should be required in the case of total tear off. C. [Steel Roof Decking]: Install a thermal barrier between [THERMAPINK, FOAMULAR] and the steel deck in accordance with construction drawings. D. THERMAPINK insulation may be installed directly over steel roof deck in accordance with the details of UL Roof Deck Construction #457, ROOF BOARD INSULATION 07 22 16 - 4

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