SMACNA Fibrous Glass Duct Construction Standards, 8th Edition

(7th Edition no long printed by the publisher). Performance ratings of the fibrous glass board as determined by North American Insulation Manufacturers' Association (NAIMA) and Underwriters Laboratories (U.L.), fabrication of rectangular duct and fittings, closures of seams and joints, channel and tie rod reinforcements and hangers and supports are covered in detail. For 2" w.g. or less. Topics covered also include FRP, resins, initiators, accelerators, catalysts, curing, promoters and inhibitors. Includes soft metrics.