This document discusses COBie (Construction Operations Building information exchange), a standardized format for capturing and exchanging building information. It explains that COBie can be useful for curtain wall subcontractors by providing structured product and component data for design, construction, and facility management. COBie data includes information on spaces, systems, equipment layout, product data, warranties, and spare parts that would benefit curtain wall subcontractors and support the building lifecycle from design through operation and maintenance. The document recommends using COBie to integrate building information models, documents, and work management for handover from contractors to facility managers.