IIBEC, formerly RCI, Inc. — is an international non-profit association of professional roof consultants, architects, and engineers who specialize in the specification and design of roof systems. From sprayed polyurethane foam to cedar shake, RCI has a member-expert for most every type of roof system used in the world today. The Great Lakes Chapter of IIBEC, Inc. was established to provide a medium at the local level for the advancement of the objectives of IIBEC - to promote closer relations and cooperation among the professionals, contractors, manufacturers, and trade associations which are engaged in, or directly connected with, the building construction industry.