Glazing infill panels offer a flexible solution for integrating performance and inspiring design within the modern building envelope. This course examines how these panels function in façade, curtain wall, and storefront systems and compares them to glass in addressing thermal performance, structural demands, weight, and installation challenges. Program content identifies key aspects of factory fabrication — including tested performance and warranty coverage — and contrasts these with characteristics of alternatives produced in the field. Participants develop strategies for specifying glazing infill panels that support energy efficiency, safety, code compliance, and design goals.