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Round 1 Bowling and Amusement 12/09/2024 Paradigm Design <br />Main Place Mall Expansion Grand Rapids, MI <br />Santa Ana, California <br />Project #2309147GR <br />HVAC INSULATION 23 0700 - 17 <br />F.Do not weld brackets, clips, or other attachment devices to piping, fittings, and specialties. <br />G.Keep insulation materials dry during application and finishing. <br />H.Install insulation with tight longitudinal seams and end joints. Bond seams and joints with <br />adhesive recommended by insulation material manufacturer. <br />I.Install insulation with least number of joints practical. <br />J.Where vapor barrier is indicated, seal joints, seams, and penetrations in insulation at hangers, <br />supports, anchors, and other projections with vapor-barrier mastic. <br />1.Install insulation continuously through hangers and around anchor attachments. <br />2.For insulation application where vapor barriers are indicated, extend insulation on anchor <br />legs from point of attachment to supported item to point of attachment to structure. Taper <br />and seal ends at attachment to structure with vapor-barrier mastic. <br />3.Install insert materials and install insulation to tightly join the insert. Seal insulation to <br />insulation inserts with adhesive or sealing compound recommended by insulation <br />material manufacturer. <br />4.Cover inserts with jacket material matching adjacent pipe insulation. Install shields over <br />jacket, arranged to protect jacket from tear or puncture by hanger, support, and shield. <br />K.Apply adhesives, mastics, and sealants at manufacturer's recommended coverage rate and wet <br />and dry film thicknesses. <br />L.Install insulation with factory-applied jackets as follows: <br />1.Draw jacket tight and smooth. <br />2.Cover circumferential joints with 3-inch-wide strips, of same material as insulation <br />jacket. Secure strips with adhesive and outward clinching staples along both edges of <br />strip, spaced 4 inches o.c. <br />3.Overlap jacket longitudinal seams at least 1-1/2 inches. Install insulation with <br />longitudinal seams at bottom of pipe. Clean and dry surface to receive self-sealing lap. <br />Staple laps with outward clinching staples along edge at 2 inches o.c. <br />a.For below ambient services, apply vapor-barrier mastic over staples. <br />4.Cover joints and seams with tape as recommended by insulation material manufacturer to <br />maintain vapor seal. <br />5.Where vapor barriers are indicated, apply vapor-barrier mastic on seams and joints and at <br />ends adjacent to duct and pipe flanges and fittings. <br />M.Cut insulation in a manner to avoid compressing insulation more than 75 percent of its nominal <br />thickness. <br />N.Finish installation with systems at operating conditions. Repair joint separations and cracking <br />due to thermal movement.