The restoration and adaptive retrofit of the historic Fulton Building provides the location for both the Byham Theatre and the Renaissance Pittsburgh Hotel. The 1,300-seat Byham Theatre, a totally restored performance hall which originally opened on Halloween, 1904 as the Gayety Vaudeville Theatre. The building’s hotel component has 300 luxury guest rooms, a business center, meeting rooms, wine bar, cocktail bar and restaurant. CJL Engineering designed the replacement of the entire building’s electrical systems including service entrance, switchgear, theatrical lighting / control, audio / visual system, fire alarm system, telecommunication data system and historical lobby renovation. Plumbing systems included new domestic water service assembly, domestic water heating, roof drainage and sanitary / vent system.