Division 7 Ebook Page 422 OptiLiner Banded Liner System, 07 21 16

FOAMULAR , Thermal, New Roof, Below Membrane B. [For ballasted roofing systems (including PRMA*) with no cover board over the XPS,] black/dark (non- white) roofing membranes (or filtration fabrics in PRMA) over THERMAPINK and FOAMULAR insulation shall be ballasted immediately after placement to prevent potential heat damage from sun exposure and wind displacement of the insulation under the membrane/fabric. C. [For mechanically attached and fully adhered roofing systems,] in areas where black/dark membranes are used and where "reflected solar energy" is expected to be present, THERMAPINK and FOAMULAR insulation need protection in addition to normally specified cover boards. For example, roof areas adjacent to higher walls, particularly walls with reflective surfaces, or near large rooftop HVAC units, or near or in between clusters of mechanical equipment, or near other structures with reflective cladding (metal or glass); or near higher reflective parapets, all such areas should be considered for additional heat protection. Such roof areas must be covered with pavers or ballast. Black/dark (non-white) membranes must be coated with white reflective topping, and maintained white, to avoid damage due to the intensified heat exposure from reflected sun in such areas. D. [Upon completion of ballasted roof construction the owner's representative must verify that installation is in accordance with design specifications such as adequate ballast gradation, rate of coverage and areas covered.] MECHANICAL FASTENERS A. Fastener/stress plate assemblies shall be driven to tightly secure the insulation board and seat the plate but shall not be overdriven so that the [THERMAPINK, FOAMULAR] board is crushed beneath the plate. B. Fasteners which are improperly installed shall be removed or corrected. Improper installation may include overdriving such that the stress plate is concave and cuts a significant depression in the insulation: under driving such that the fastener head Is not properly seated in the stress plate and may puncture the membrane: broken or bent shanks: improper location: or insufficient length. C. Fasteners shall be embedded in the deck per manufacturer's recommendations to insure adequate withdrawal resistance. D. [THERMAPINK, FOAMULAR] shall be secured with [ ] fasteners and 3" diameter stress plates per 4x8 board. 1. Four fasteners minimum, (install 2 to 4 more to insure greater flatness) one 6" in from the edges of each corner, are required when THERMAPINK or FOAMULAR insulation is installed under white membranes with or without a slip-sheet. Four fasteners, 6" from each corner, are also required when FOAMULAR insulation is installed under a rigid coverboard. The coverboard and THERMAPINK or FOAMULAR insulation may be fastened concurrently. The rigid coverboard may require more than 4 fasteners to meet the recommendation of its manufacturer. END OF SECTION Pub No 10019386 2014 Owens Corning. All Rights Reserved. ROOF BOARD INSULATION 07 22 16 - 7

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