Backed by the resources of DuPont, the Building Envelope Specialist Network has been established to answer the industry's building science questions about weatherization barriers and wall flashing systems.  Each Specialist plays a unique role in the industry as a trusted advisor to building and industry professionals.  In order to build this expertise, DuPont had developed a rigorous training program that includes product knowledge, building practices, and the science behind air and moisture management, among many other relevant topics to help the Building Envelope Specialists support the industry.