Backed by the resources of DuPont™, the Tyvek^® Specialist network has been established to answer the industry's building science questions about weatherization barriers and wall flashing systems. Hear what the Tyvek Senior Specialists have to say about the Tyvek Specialist Certification Program.

	Marty Gillespie of Hansen Marketing describes how the business model for the Tyvek Specialist Network came into being, and how it has grown and evolved to the most powerful program of its kind in the industry. (2:50)
	Jimmy Knapp of Hallmark Building Supplies and Tyvek Specialist for 17 years, describes the value of the Specialist Network as a system that supports success. (3:20)
	Jim Frensley of Hansen Marketing speaks about the benefits and value that the tools, structure and support of the DuPont Tyvek Specialist Network provide in increasing sales. (3:00)
	Wally Gatly of Parksite, Plunkett and Webster offers advice to new Tyvek Specialists about leveraging the training in the Specialist Certification program, and making the most of relationships within the industry. (2:56)