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ORANGE COUNTY 230719-4 <br /> <br />Emergency Management Warehouse Building Dehumidification HVAC Piping Insulation <br /> <br /> <br />INSULATION INSTALLATION AT PENETRATIONS 1 <br /> 2 <br />Roof Penetrations: Install insulation continuously through roof penetrations. 3 <br /> 4 <br />Seal penetrations with flashing sealant. 5 <br /> 6 <br />For applications requiring only indoor insulation, terminate insulation above roof surface and seal with joint 7 <br />sealant. For applications requiring indoor and outdoor insulation, install insulation for outdoor applications 8 <br />tightly joined to indoor insulation ends. Seal joint with joint sealant. 9 <br /> 10 <br />Extend jacket of outdoor insulation outside roof flashing at least 2 inches below top of roof flashing. 11 <br /> 12 <br />Seal jacket to roof flashing with flashing sealant. 13 <br /> 14 <br />Underground Exterior Wall Penetrations: Terminate insulation flush with sleeve seal. Seal terminations with flashing 15 <br />sealant. 16 <br /> 17 <br />Aboveground Exterior Wall Penetrations: Install insulation continuously through wall penetrations. 18 <br /> 19 <br />Seal penetrations with flashing sealant. 20 <br /> 21 <br />For applications requiring only indoor insulation, terminate insulation inside wall surface and seal with joint 22 <br />sealant. For applications requiring indoor and outdoor insulation, install insulation for outdoor applications 23 <br />tightly joined to indoor insulation ends. Seal joint with joint sealant. 24 <br /> 25 <br />Extend jacket of outdoor insulation outside wall flashing and overlap wall flashing at least 2 inches. 26 <br /> 27 <br />Seal jacket to wall flashing with flashing sealant. 28 <br /> 29 <br />Interior Wall, Partition, and Floor Penetrations: Install insulation continuously through walls, partitions, and floors. 30 <br />Seal penetrations through fire-rated assemblies complying with requirements of Section 019913 for firestopping and 31 <br />fire-resistive joint sealers. 32 <br /> 33 <br /> 34 <br />INSTALLATION OF FLEXIBLE ELASTOMERIC INSULATION 35 <br /> 36 <br />Flexible elastomeric insulation shall be installed in strict accordance with the manufacturer's written installation 37 <br />instructions. 38 <br /> 39 <br />Insulation Installation on Straight Pipes and Tubes: 40 <br /> 41 <br />Install un-slit insulation sections to the maximum extent possible. Seal butt joints with manufacturer's 42 <br />recommended adhesive. 43 <br /> 44 <br />Where slit insulation sections must be used, seal longitudinal seams and butt joints with manufacturer's 45 <br />recommended adhesive. Secure slit sections on both sides of each fitting and 12" o.c. on straight pipe 46 <br />or tubing runs with 2" wide, 1/8" thick insulation tape matching the adjacent insulation. The use of 47 <br />metal bands, plastic bands, and wire are prohibited. 48 <br /> 49 <br />Insulation Installation on Pipe Fittings and Elbows: 50 <br /> 51 <br />Fabricate mitered sections of pipe insulation as fitting covers. 52 <br /> 53 <br />On soldered, brazed, or buttwelded joint fittings, insulation that fits the adjacent piping may be 54 <br />used. 55 <br /> 56 <br />For screwed or socket weld joint fittings, the insulation inside diameter shall match the outside 57 <br />diameter of the adjacent piping. Fitting covers shall lap adjacent piping insulation by at least 1". 58 <br /> 59 <br /> 60 <br />DocuSign Envelope ID: 7668B866-6C26-485C-9A45-DAAB5D4BD951