Division 22 23 Ebook Page 248 Section 23 07 16 HVAC Equipment Insulation

HVAC EQUIPMENT INSULATION 23 07 16 - 5 HVAC Equipment Insulation insulation using staggered joint method for both single and double layer installations, applying each layer of insulation separately. 3. Maintain the integrity of factory-applied vapor barrier jacketing on insulation, protecting it against puncture, tears or other damage. Staples used on cold insulation shall be coated with suitable sealant to maintain vapor barrier integrity. 4. Where specified on contract drawings, coat insulated surfaces with layer of insulating cement, troweled in a workmanlike manner, leaving a smooth and continuous surface. Fill in seams, broken edges, and depressions. Cover over wire mesh and joints with cement sufficiently thick to remove surface irregularities. B. Removable Insulation: Provide removable insulation sections to cover parts of equipment which must be opened periodically or maintenance, such as vessel covers, fasteners, flanges, frames and accessories. C. Areas Left Uninsulated: Items such as boiler manholes, handholds, clean-outs, ASME stamp, and manufacturers' nameplates, may be left uninsulated, unless omitting insulation would cause a condensation problem. When such is the case, appropriate tagging shall be provided to identify the presence of these items. Provide neatly beveled edges at interruptions of insulation. Note to Specifier: Include the following only in the Midwestern US, where this association's publications are commonly used. D. Accessory Materials: Install in conformance with the current edition of the Midwest Insulation Contractors Association (MICA) "Commercial & Industrial Insulation Standards." 3.5 FIELD QUALITY ASSURANCE A. Upon completion of insulation work covered by this specification, visually inspect the work and verify that it has been correctly installed. This may be done while work is in progress, to assure compliance with requirements herein to cover and protect insulation materials during installation. 3.6 PROTECTION A. Replace damaged insulation, which cannot be satisfactorily repaired, including insulation with vapor barrier damage and moisture-saturated insulation. B. The insulation contractor shall advise the general and the mechanical contractor as to requirements for protection of the insulation work during the remainder of the construction period, to avoid damage and deterioration of the finished insulation work. END OF SECTION Pub. No. 10019398-A 2015 Owens Corning. All Rights Reserved.

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