WASHINGTON, D.C. — The American Iron and Steel Institute (AISI) announced that supplement No. 1 to AISI S100, the North American Specification for the Design of Cold-Formed Steel Structural Members, 2007 Edition has been published and is available free of charge through the AISI’s website.

The Supplement adds the provision for determining the safety and resistance factor for partition walls, and updates the reference to Supplement No. 1 of AISI S123, the North American Cold-Formed Steel Framing Standard-Lateral. The North American Specification harmonizes cold-formed steel design technology among the United States, Canada and Mexico, allowing faster introduction of new technologies and opening up the marketplace for a wide variety of derivative products such as design aids and educational materials.

The Supplement was developed by a joint effort of AISI’s Committee on Specifications, the Canadian Standards Association (CSA) Technical Committee on Cold-Formed Steel Structural Members, and Mexico’s Camara Nacional de la Industria del Hierro y del Acero (CANACERO).

“Supplement No. 1 provides a timely update to the North American Specification. It should be of special interest to those involved with cold-formed steel framing design,” said Jay Larson, P.E., F. ASCE, managing director, construction technical program. Larson indicated that the Committee on Specifications is currently developing Supplement No. 2, which will be submitted for adoption in the building code, is expected to be available in late 2010. Supplement No. 2.