This report was developed
by the NAHB Research Center for the Steel Framing Alliance and other shareholders
in ILZRO’s research program SC-4, Galvanized Steel Framing for Residential
Buildings. This report replaces the previous report issued in September
2003.
The initial objective of this project was
to investigate the corrosion performance of galvanized steel framing components
in residential construction by measuring actual corrosion rates of steel
framing members over a 3-year period and correlating these to environmental
conditions. After completion of the initial phase of work, the monitoring
period was extended
to 5 years and later to 7 years. The findings of this study validate the
adequacy of current industry corrosion protection requirements and provide
additional basis for promoting the long-term durability of cold-formed
steel framing.
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