Performance Validation Case Study--Federal Office Building with an Integrated Facade

The GSA Edith Green Wendell Wyatt Building (EGWW) has undergone an extensive retrofit and is distinguished by its new integrated facade.6 It has been transformed from a poorly performing building into a highly efficient LEED Platinum facility. The unitized curtain wall includes fixed exterior shading tuned for each solar orientation. The new interior environment optimizes daylight and electric lighting, thermal comfort, and air quality. This paper reports on post occupancy evaluations (POE) to validate and fine-tune the performance of EGWW. The focus is on POE studies that relate to the integrated facades. Overall, post occupancy evaluations address three categories: esource use and generation—energy and water, occupant satisfaction, and indoor environmental quality measurements. POE objectives include: demonstrating federal energy compliance, refining building performance, and providing feedback for future work.

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