GreatGlazing: Seattle family foundation campus


Photos by Sean Airhart / NBBJ

The basics: Based in Seattle, the world's largest charitable foundation built a new headquarter campus that includes two, sixstory, boomerang-shaped buildings totaling 900,000 square feet in size. The project earned platinum certification from the U.S. Green Building Council's Leadership in Energy and Environmental Design program. Facade contributions to LEED included maximizing daylighting and keeping all workstations within 30 feet of sunlight. Enclos participated as a consultant to the design team before being awarded a design/build contract for the project's facade work. The Foundation's campus was completed in 2011 with a total construction cost of $500 million, and a glazing contract value of $47 million.

The players: Architect, NBBJ; engineer, Arup; façade consultant, Morrison Hershfield; general contractor, Sellen Construction; façade consultant, design/assist–design/build façade supplier, glazing contractor, Enclos Corp.

The glass and systems: More than 300,000 square feet of custom unitized curtain wall and a cable wall at the museum podium—the vertical cable-supported wall features a custom glass connection system. All façade systems were designed to demanding performance and security specifications, including stringent blast requirements. The total glazing package includes: blast-resistant facades, cable nets, glass fin systems, glass fin/point-fixed glass, operable windows, point-fixed clamping system and sunshades.