Division 22 23 Ebook Page 258 Section 23 07 19 HVAC Piping Insulation-VaporWick® Pipe Insulation

HVAC PIPING INSULATION 23 07 19 - 3 HVAC Piping Insulation VaporWick Pipe Insulation 2. Vapor Retarder: Factory-applied integral vapor retarder, extending under the evaporator area of the wick, and covering not less than 98% of the circumference of the product. Exposed evaporator area shall be not less than 0.1 sq. ft./linear ft. of product. a. Fungi Resistant: ASTM C 1338. 2.3 ACCESSORY MATERIALS A. Accessories: Provide accessories per insulating system manufact urers recommendations, including the following: 1. Wrapping Materials: Owens Corning TM VaporWick Pipe Insulation, wick material for wrapping valves and fittings. 2. Closure Materials: Owens Corning TM VaporWick Pipe Insulation Sealing Tape, and mastics. 3. Support Materials: Hanger straps, hanger rods, saddles, support high-density blocks, and support rings. B. Adhesives For Indoor Applications: VOC content of 50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). PART 3 - EXECUTION 3.1 EXAMINATION A. Verify that materials and accessories can be installed in accordance with Contract Documents and material manufacturers' recommendations. B. Verify, by inspecting product labeling, submittal data, and/or certifications which may accompany the shipments, that materials and accessories to be installed on the project comply with applicable specifications and standards and meet specified thermal and physical properties. C. Before starting work under this section, carefully inspect the site and installed work of other trades and verify that such work is complete to the point where installation of materials and accessories under this section can begin. 3.2 PREPARATION A. Ensure that surfaces over which insulation is to be installed are clean and dry. B. Ensure that insulation is clean, dry, and in good mechanical condition with factory-applied vapor or weather barriers intact and undamaged. Wet, dirty, or damaged insulation shall not be acceptable for installation. C. Ensure that pressure testing of piping and fittings has been completed prior to installing insulation. 3.3 SAFETY PRECAUTIONS A. Insulation contractor's employees shall be properly protected during installation of insulation. Protection shall include proper attire when handling and applying insulation materials, and shall include, but not be limited to, disposable dust respirators, gloves, hard hats, and eye protection.

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