Division 7 Ebook Page 427 FOAMULAR Insulation, New Roof, Below Membrane, 07 22 16

FOAMULAR , Thermal, Tapered Roof Insulation B. A thorough inspection should be required in the case of total tear off. C. [Steel Roof Decking]: Install a thermal barrier between Tapered [THERMAPINK, FOAMULAR]/fill layers and the steel deck in accordance with construction drawings. 1. Tapered/fill Thermapink layers may be installed directly over steel roof deck in accordance with the details of UL Roof Deck Construction #457. 2. Tapered/fill FOAMULAR layers in a steel deck application must be underlaid with a thermal barrier as specified by the building code, or, classified by assembly in accordance with UL 1256 or FM 4450. Thermal barriers may be loose-laid or secured to the deck by mechanical fastening depending on design or code requirements. D. [Structural Concrete (precast, poured-in-place, gypsum, or lightweight insulating)]: The surface must be clean, smooth, free of fins, sharp edges, loose and foreign materials, oil, grease, and fresh roofing cement. Repair any deck joints or cracks, any deck to wall junctions, and any other deck to penetration gaps, which are greater than 1/4". E. [Composite (Tectum, etc.)]: Install deck and secure in accordance with deck manufacturer's recommendations. The deck must be properly secured with all mechanical fasteners flush with the surface of the deck. The deck must be of sufficient thickness and character to develop adequate fastener holding power. Verify requirements with the membrane manufacturer. F. [Wood (Plank, Plywood, OSB, etc.)]: Install deck and secure in accordance with construction drawings. The deck must be well secured with all mechanical fasteners flush with the surface of the deck. The deck must be of sufficient thickness to develop adequate fastener holding power. Verify requirements with the membrane manufacturer. 3.1.1.3 VAPOR RETARDER A. Install a vapor retarder in accordance with construction drawings. Place the vapor retarder to insure adequate end and side joint laps. When high relative humidities inside the building or other normal climatic conditions create a condensation point within the insulation board, it may be necessary to install a vapor retarder beneath the insulation or thermal barrier. Although tapered/fill layers of THERMAPINK and FOAMULAR insulation have vapor retarding qualities, the need for more effective vapor retarding layers must be assessed based on the conditions present on each project. Tapered and fill layers of THERMAPINKand FOAMULAR insulation are compatible with most commonly used asphaltic and sheet film vapor retarding materials. See the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) Handbook of Fundamentals for specific design guidelines. 3.1.1.4 INSULATION A. Install tapered roof insulation in accordance with the manufacturer's approved shop drawings. B. Total roof insulation aged thermal resistance shall be [R___], achieved in the thicknesses and number of layers as shown in the construction documents. R-value chosen is to be specified based on the intended use of each project and design criteria of each project, and applicable energy conservation codes. Contact an Owens Corning representative for information regarding ASHRAE 90.1 Energy Code minimum requirements for roof insulation if needed. C. Install thicknesses of fill in accordance with shop drawings prepared by [Owens Corning, architect, consultant] and approved by the roofing contractor. Install Tapered [THERMAPINK, FOAMULAR] over the required base layers, following the directional arrow printed on each panel which indicates direction of slope. Note that Tapered [THERMAPINK, FOAMULAR] panels also have a letter code printed on their surface which corresponds with panel layout shown on the approved shop drawings. ROOF BOARD INSULATION 07 22 16 - 5

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