The main purpose of the metallic or plastic covering, known as lagging, is to protect the more fragile insulating material from the effects of weather and traffic in an industrial setting. According to SMACNA, the publication assists the designer, contractor, and plant engineer in understanding and solving the complexities involved in the design, fabrication, and installation of sheet metal lagging systems.

The association also says that the fabrication practices illustrate the requirements of the most commonly encountered insulated surfaces, such as boiler walls, flues, ducts, precipitators, air heaters, economizers, tanks, and fans. The manual provides numerous examples of sheet metal lagging applications.

The first edition of the manual is available to architects, designers, and engineers at a discounted price of $58. The non-member list price is $83. Purchases may be made online at www.smacna.org (website).

Publication date: 09/16/2002