Division 22 23 Ebook Page 247 Section 23 07 16 HVAC Equipment Insulation

HVAC EQUIPMENT INSULATION 23 07 16 - 4 HVAC Equipment Insulation E. Accessories: Provide accessories per insulating system manufacturer's recommendations, including the following: 1. Closure Materials: Butt strips, bands, wires, staples, mastics, adhesives; pressure-sensitive tapes. 2. Field-Applied Jacketing Materials: Sheet metal, plastic, canvas, fiberglass cloth, insulating cement, PVC fitting covers. 3. Support Materials: Hanger straps, hanger rods, saddles, support rings. F. 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. 3.4 INSTALLATION A. General: Install insulation materials and accessories in accordance with Contract Documents and manufacturer's published instructions to ensure that it will serve its intended purpose. 1. Install insulation on piping subsequent to installation of heat tracing, painting, and acceptance tests. 2. Install insulation materials with smooth and even surfaces. Do not use cut pieces or scraps abutting each other. Butt insulation joints firmly to ensure complete, tight fit over surfaces. Apply

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