Business
Roofing Contractors Association of Washington (RCAW)
[ http://www.rcaw.com/ ]
Aiming to advance the roofing industry through advocacy and educational programs. Also offers events calendar, membership information and newsletter.
Washington Asphalt Pavement Association (WAPA)
[ http://www.asphaltwa.com/ ]
Advancing the use of hot mix asphalt pavements through research, education, and communication. Also offers guide, calendar, news, FAQ's and membership application form.