The Building Enclosure Council (BEC) is a network of affiliated architects, engineers, contractors, manufacturers and others located in major cities across the United States. This committee offers industry professionals an opportunity to exchange valuable information relating to successful building enclosure design through meetings and sharing of resources. BEC was established as an initiative of the Building Enclosure Technology and Environment Council (BETEC) of the National Institute of Building Sciences and the American Institute of Architects. The Dallas BEC was formed to address durability, design and the unique air, moisture and thermal performance challenges of building enclosures in Texas.