Division 22 23 Ebook Page 241 Section 23 07 13 Duct Insulation-SoftRŽ Duct Wrap FRK

DUCT INSULATION 23 07 13 - 3 Duct Insulation - SOFTR Duct Wrap FRK 2.3 ACCESSORY MATERIALS A. Accessories: Provide accessories per duct insulation system manufacturers recommendations, including the following: 1. Pressure sensitive tape. 2. Staples and fasteners. 3. Vapor retarders. 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 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. 3.3 PREPARATION A. Ensure that surfaces over which insulation is to be installed are clean and dry. Ensure that air ducts are tightly sealed at joints and seams. 3.4 INSTALLATION A. Completely cover duct designated to receive duct wrap. B. To ensure installed thermal performance, duct wrap insulation shall be cut to stretch-out dimensions as shown in Table 2 below. C. Remove a 2 in (50mm) piece of insulation from the facing at the end of the piece of duct wrap to form an overlapping stapling and taping flap. D. Install duct wrap insulation with facing outside so that the tape flap overlaps the insulation and facing at the other end of the piece of duct wrap. Tightly butt adjacent sections of duct wrap insulation with the 2 in (50mm) stapling and taping flap overlapping. If ducts are rectangular or square, install so insulation is not excessively compressed at corners. Staple seams approximately 6 in (150mm) on center with 1/2 in (13mm) (min.) steel outward clinching staples.

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