 Gaf - Founded in 1886, GAF has grown to become North America’s largest manufacturer of commercial and residential roofing.* Professional installers have long preferred the rugged, dependable performance that only a GAF roof can offer, and have made it the #1-selling brand in North America.
 The Building Owners and Managers Association (BOMA) International is an international federation of more than 100 local associations and affiliated organizations. Founded in 1907, its 16,500-plus members own or manage more than nine billion square feet of commercial properties.
 National Association Of Home Builder - NAHB is a trade association that helps promote the policies that make housing a national priority. Since 1942, NAHB has been serving its members, the housing industry, and the public at large.
 National Roofing Contractors Association -NRCA is one of the construction industry's most respected trade associations and the voice and leading authority in the roofing industry for information, education, technology and advocacy.
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