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OC Sportsplex Pool HVAC Unit Replacement <br />PDC Project 23022 HVAC Piping Insulation 23 07 19 - 3 <br />3.Knauf Insulation​​ <br />4.Owens Corning Corporation​​ <br />5.Manson Insulation <br />6.Or Approved Equal <br />B.Insulation: ASTM C547and ASTM C795;rigid molded,noncombustible. <br />1.K Value: ASTM C177,0.24 at 75 degrees F. <br />2.Maximum Service Temperature: 850 degrees F. <br />3.Maximum Moisture Absorption: 0.2 percent by volume. <br />C.Vapor Barrier Jacket: White kraft paper with glass fiber yarn,bonded to aluminized film;moisture <br />vapor transmission when tested in accordance with ASTM E96/E96M of 0.02 perm-inches. <br />D.Tie Wire: 0.048 inch stainless steel with twisted ends on maximum 12 inch centers. <br />E.Vapor Barrier Lap Adhesive: Compatible with insulation. <br />F.Insulating Cement/Mastic: ASTM C195;hydraulic setting on mineral wool. <br />G.Fibrous Glass Fabric: <br />1.Cloth: Untreated;9 oz/sq yd weight. <br />2.Blanket: 1.0 pcf density. <br />3.Weave: 5 by 5. <br />H.Indoor Vapor Barrier Finish: <br />1.Cloth: Untreated;9 oz/sq yd weight. <br />2.Vinyl emulsion type acrylic,compatible with insulation,white color. <br />I.Outdoor Vapor Barrier Mastic: Vinyl emulsion type acrylic or mastic,compatible with insulation, <br />black color. <br />J.Insulating Cement: ASTM C449. <br />2.03 CELLULAR GLASS <br />A.Manufacturers: <br />1.Owens Corning Corporation​​ <br />2.Or Approved Equal <br />B.Block Insulation: ASTM C552,Type I,Grade 6. <br />1.​'K'​Value: Grade ​6​,​0.18 at 77 degrees F​. <br />2.Service Temperature: -450 to ​900 degrees F​. <br />3.Water Vapor Permeability: ​0.00 perm inch ​. <br />4.ASTM C1639 “Standard Specification for Fabrication of Cellular Glass Piping and Tubing <br />Insulation” <br />5.Water Absorption: ​0.2​percent by volume,maximum. <br />C.Joint Sealant: <br />1.PITTSEAL®444N Sealant as supplied by Pittsburgh Corning Corporation or equal, <br />2.PITTSEALÒ 727 sealant as supplied by Pittsburgh Corning Corporation or equal. <br />D.Vapor Retarder Mastic:PITTCOTE®300 Finish,an asphalt cutback mastic,as supplied by <br />Pittsburgh Corning Corporation. <br />E.Weather Barrier Mastic -PITTCOTE®404 Coating,an acrylic latex mastic,as supplied by <br />Pittsburgh Corning Corporation. <br />F.Reinforcing Fabric -PC®Fabric 79,a polyester fabric mesh,as supplied by Pittsburgh Corning <br />Corporation. <br />G.Jacketing shall be suitable for direct burial application. <br />H.Insulation Adhesive -PC®88 Adhesive,a two-component urethane modified asphalt adhesive,as <br />supplied by Pittsburgh Corning Corporation. <br />2.04 HYDROUS CALCIUM SILICATE <br />A.Insulation: ASTM C533 and ASTM C795;rigid molded,asbestos free,gold color. <br />Docusign Envelope ID: D4F3B98E-0756-4A0C-A3AD-05AA32D39F1C