Value Engineering is a frequently utilized process that can provide useful and meaningful benefits to most building construction projects. In many states, this process is mandated by the local authority. However, it is often misunderstood by members of the Design and Construction Team as it should be used as a tool to add value to the project rather than simply as a measure to reduce cost. This paper discusses the application of the process for building enclosure systems and how the Design Team and, in some cases, a separate Building Enclosure Consultant, may fit into this process. Specific instances where this process was incorrectly applied resulting in poor enclosure performance, water penetration, energy consumption, and costly repairs are compared and contrasted to projects where it was successfully used to add value by ensuring the performance of the enclosure components was sufficient and adequate based on the Owner’s Project Requirements. It also outlines how cost saving measures that could have led to problems with the building enclosure were identified by value added proposals for more stringent Quality Assurance measures.