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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 - 2 <br />1.06 FIELD CONDITIONS <br />A Maintain ambient temperatures and conditions required by manufacturers of adhesives,mastics,and <br />insulation cements. <br />B Maintain temperature during and after installation for minimum period of 24 hours. <br />C Insulation shall not be installed until all testing and inspection of pipe,duct,vessel,etc.has been completed <br />and approved by Engineer/Owner’s representative. <br />PART 2 PRODUCTS <br />2.01 REGULATORY REQUIREMENTS <br />A Surface Burning Characteristics: Flame spread index/Smoke developed index of 25/50,maximum,when <br />tested in accordance with ASTM E84,UL 723,ASTM E84,or UL 723.These ratings must be as tested on <br />composite of insulation,jacket or facing,and adhesive.Components such as adhesives,mastics,and cements <br />must meet the same individual ratings as minimum requirements. <br />2.02 GLASS FIBER,FLEXIBLE <br />A Manufacturer: <br />1.CertainTeed Corporation​​ <br />2.Johns Manville​​ <br />3.Knauf Insulation​​ <br />4.Owens Corning Corporation​​ <br />5.Or Approved Equal <br />B Insulation: ASTM C553;flexible,noncombustible blanket. <br />1.K value: 0.36 at 75 degrees F,when tested in accordance with ASTM C518. <br />2.Maximum Service Temperature: 1,200 degrees F. <br />3.Maximum Water Vapor Absorption: 5.0 percent by weight. <br />C Vapor Barrier Jacket: <br />1.Kraft paper with glass fiber yarn and bonded to aluminized film. <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.Kraft paper reinforced with glass fiber yarn and bonded to aluminized film,with pressure-sensitive <br />rubber-based adhesive. <br />E Indoor Vapor Barrier Mastic: <br />1.Manufacturers: <br />a.Childers CP-35 <br />b.Hardcast Seal-Tack AF <br />F Tie Wire: Annealed steel,16 gauge,0.0508 inch diameter. <br />2.03 GLASS FIBER,RIGID <br />A Manufacturer: <br />1.CertainTeed Corporation <br />2.Johns Manville​​ <br />3.Knauf Insulation​​ <br />4.Owens Corning Corporation​​ <br />5.Or Approved Equal <br />B Insulation: ASTM C612;rigid,noncombustible. <br />1.K Value: 0.24 at 75 degrees F,when tested in accordance with ASTM C518. <br />2.Maximum Service Temperature: 450 degrees F. <br />3.Maximum Water Vapor Absorption: 5.0 percent. <br />4.Maximum Density: 8.0 pcf. <br />C Vapor Barrier Jacket: <br />1.Kraft paper with glass fiber yarn and bonded to aluminized film. <br />Docusign Envelope ID: 2D852F9B-A7CF-462A-9536-444A53AA848A