June 2004
Cold-formed steel has been widely used in commercial buildings, especially in non-load bearing (partitions) and curtain wall applications. Cold-formed steel sections are increasingly being used as primary structural members, such as beams, floor joists, and load-bearing walls in commercial and residential construction.
The fire and acoustical performance of cold-formed steel floor and wall assemblies are important considerations when designing residential and light commercial structures. However, there is little information available on fire, sound transmission class (STC), and impact insulation class (IIC) ratings of cold-formed steel assemblies. Moreover, the available information is dispersed and not readily accessible to end users.
This guide provides a listing of fire and sound rated steel assemblies in the residential and light commercial markets. It relies on tested assemblies that were either gathered from listings in other publications or are the results of tested assemblies that were conducted as part of this program.
The intent of this guide is to provide the end users a comprehensive document that presents all available fire and sound rated cold-formed steel wall and floor assemblies.
Prepared for:
The U.S. Department of Housing and Urban Development
Office of Policy Development and Research
Washington, DC
and
Steel Framing Alliance (SFA)
Washington, DC
Prepared by:
NAHB Research Center
400 Prince George's Boulevard
Upper Marlboro, MD 20774-8731
95 pages