American Institute of Architects (AIA)
http://www.aia.org
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American Institute of Steel Construction
http://www.aisc.org
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American Iron and Steel (AIS)
http://www.steel.org
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American National Standards Institute
http://www.ansi.org
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Associated Builders and Contractors
http://www.abc.org
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Association of the Wall and Ceiling Industry
http://www.awci.org
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Cold Formed Steel Engineer Institute (CFSEI)
http://www.cfsei.org
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Construction Specifiers Institute
http://www.csinet.org
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Florida Roofers and Sheet Metal Association
http://www.floridaroof.com
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Gibraltar Industries
http://www.gibraltar1.com
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Gutter Helmet
http://www.gutterhelmet.com
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Manufactured Housing Institute
http://www.mfghome.org
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Metal Building Manufacturers Association (MBMA)
http://www.mbma.com
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Metal Construction Association (MCA)
http://www.metalconstruction.org
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Metal Roofing Alliance
http://www.metalroof.org
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National Association of Home Builders (NAHB)
http://www.nahb.org
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National Frame Builders Association (NFBA)
http://www.nfba.org
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National Gypsum
http://www.nationalgypsum.com
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National Hurricane Center (NOAA)
http://www.nhc.noaa.gov
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National Lumber and Building Material Dealers Association (NLBMDA)
http://www.dealer.org/
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National Roofing Contractors Association (NRCA)
http://www.nrca.net
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National Society for Professional Engineers (NSPE)
http://www.nspe.org/
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Steel Framing Alliance
http://www.steelframing.org
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Steel Manufacturers Association (SMA)
http://www.steelnet.org
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Steel Stud Manufacturers Association (SSMA)
http://www.ssma.com/
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