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May 6, 2022
Seattle Children’s Building Care
Contractor: Anning-Johnson Co.
Architect: ZGF Architects
Team: Cement Masons and Plasterers Local 528; International Union of Painters and Allied Trades; Pacific Northwest Regional Council of Carpenters; CWallA; Grabber Construction Products; L&W Supply; Award Metals; CertainTeed Gypsum; DeWalt; GC Products; Georgia-Pacific; Hilti; Scafco Steel Stud Co.; Simpson Strong-Tie; Trim-Tex; USG Building Systems
Seattle Children’s Hospital provides pediatric care to children and their families, regardless of their financial circumstances, throughout the Pacific Northwest and West. Building Care is a new nine-floor addition to the existing hospital and is part of the multi-phase main campus expansion.
The Anning-Johnson Co. overcame project challenges with the framing, trade coordination, and high level of detail for a wide variety of finishes, including unique gypsum wallboard finishes, USG ensemble and GFRG columns. The framing was subject to enhanced seismic requirements, so detailing for the floating head-of-wall and non-connected vertical wall joints, both atypical to standard framing practices, increased the technical difficulty in application within the heavily mechanical, electrical and plumbing congested environment.
Trade coordination was a significant factor in all aspects of the build with many mechanical, electrical, plumbing and framing finishes requiring precise placement. There were also numerous different and complicated door types requiring extreme precision of the finished opening for proper door fit.
Another unique challenge was air-leakage requirements in multiple areas throughout the project, requiring upgraded sealing of all aspects of the wall assemblies. The project included a diverse grouping of area uses relevant to hospitals surgical, patient rooms, labs, pharmacy and office with unique high-quality finishes in all areas requiring close attention to detail and quality of workmanship.