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Orange County Health Department Improvements Smith Sinnett /2024008 <br />Hillsborough,NC Orange County Asset Management Services <br />DUCT INSULATION 23 07 13 - 3 <br />2.Moisture Vapor Permeability: 0.02 perm inch,when tested in accordance with ASTM E96/E96M. <br />3.Secure with pressure-sensitive tape. <br />D Vapor Barrier Tape: <br />1.Manufacturers: <br />a.3M <br />b.Polyguard <br />c.Shurtape <br />2.Kraft paper reinforced with glass fiber yarn and bonded to aluminized film,with pressure-sensitive <br />rubber-based adhesive. <br />E Protective Coating: <br />1.Manufacturers: <br />a.Design Polymerics;DP 2510 Water Based,Low VOC,Duct Liner Protective Coating​: <br />F Indoor Vapor Barrier Finish: <br />1.Cloth: Untreated;9 oz/sq yd weight,glass fabric. <br />2.Vinyl emulsion type acrylic,compatible with insulation,​white​color. <br />2.04 POLYISOCYANURATE INSULATION BOARD <br />A Manufacturer: <br />1.Dyplast <br />2.Rmax <br />3.Johns Manville <br />4.Or Approved Equal <br />B Insulation: <br />1.Flat Foam Insulation with Heavy Duty Fiber-Reinforced Facers:closed-cell polyisocyanurate foam <br />core laminated to extra durable heavy duty fiber-reinforced facers on both sides;conforming to ASTM <br />C 1289,Type II,Class 2. <br />2.Blowing Agent:Zero ODP,3rd generation. <br />3.Thickness 2.00 inch,R Value 11.4,flute spanability 4-3/8 inches <br />4.25/450 flame/smoke spread rating <br />C Vapor Barrier Jacket: <br />1.Asphalt Bitumen:ASTM D 312,Type III,or Type IV. <br />D Vapor Barrier Tape: <br />1.Kraft paper reinforced with glass fiber yarn and bonded to aluminized film,with pressure sensitive <br />rubber based adhesive. <br />2.05 JACKETING AND ACCESSORIES <br />A Canvas Jacket: UL listed 6 oz/sq yd plain weave cotton fabric treated with dilute fire-retardant lagging <br />adhesive. <br />1.Lagging Adhesive: <br />a.Manufacturers: <br />1)Design Polymerics;DP 3050 Water Based,Zero VOC,Premium Quality,Lagging <br />Adhesive,and Vapor Retarder <br />2)Childers CP-35 <br />b.Compatible with insulation. <br />B Mineral Fiber (Outdoor)Jacket: Asphalt impregnated and coated sheet,50 lb/square. <br />C Aluminum Jacket: <br />1.Comply with ASTM B209/B209M,Temper H14,minimum thickness of 0.016 inch with factory- <br />applied polyethylene and kraft paper moisture barrier on the inside surface. <br />2.Thickness: 0.016 inch sheet. <br />3.Finish: ​Embossed​. <br />4.Joining: Longitudinal slip joints and 2 inch laps. <br />Docusign Envelope ID: 2D852F9B-A7CF-462A-9536-444A53AA848A