Ductwork Support Spacing Tech Brief 13-01 Question..can we use 14 foot support spacing for round spiral ductwork? Overview: SMACNA HVAC Duct Construction Metal and Flexible (2005) Table 5-2 allows for a maximum spacing of 12 feet. In addition SMACNA (2005) stipulates the required wire size, rod, or strap required for proper support. The standard gauges also required by SMACNA (2005) are also required; this is standard practice for Lindab. SMACNA (2005) also directs you to utilize SMACNA Round Industrial Duct Construction Standards (RIDCS) for longer spans. SMACNA RIDCS 1st edition (1977) has convenient tables for the material gauges for ...
This is a preview of "SMACNA 1108-2008". Click here to purchase the full version from the ANSI store. ACCEPTED INDUSTRY PRACTICE FOR INDUSTRIAL DUCT CONSTRUCTION SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION, INC. www.smacna.org This is a preview of "SMACNA 1108-2008". Click here to purchase the full version from the ANSI store. This is a preview of "SMACNA 1108-2008". Click here to purchase the full version from the ANSI store. ACCEPTED INDUSTRY PRACTICE FOR INDUSTRIAL DUCT CONSTRUCTION SECOND EDITION - AUGUST 2008 SHEET METAL AND AIR CONDITIONING CONTRACTORS' ...
UNIVERSITY OF PENNSYLVANIA Design Standards Revision July 2019 SECTION 233100 – DUCTWORK 1.0 Acoustical duct lining in any part of the duct system is prohibited. All ductwork requiring insulation shall be externally insulated (Refer to the Sheet Metal Ductwork Insulation Schedule in Section 230700 for insulation types and thickness). Double walled ducts consisting of an outer wall of galvanized sheet metal, an inner wall of perforated galvanized sheet metal with insulation sandwiched between the layers is permitted. 2.0 All ductwork shall be designed, constructed, supported and sealed in accordance with SMACNA HVAC Duct Construction Standards and pressure classifications ...
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