Chicago Starbucks Reserve Turns Stair-Climbing Into Unforgettable Experience Using Fire Rated Glass

Starbucks Reserve Roastery
Chicago, IL
Architect: Solomon Cordwell Buenz
General Contractor: Pepper Construction
Glazing Contractor: SG Metal & Glass
Products Used: SuperLite® II-XLB 120 with Starphire Ultra-Clear® glass in GPX® Architectural Series Perimeter Framing and SuperLite II-XL® 90 with Starphire Ultra-Clear® glass in GPX® Builders Series Temperature Rise Doors

The Starbucks Reserve Roastery in Chicago’s Magnificent Mile first opened in November 2019, marking it as the sixth Starbucks roastery globally and the third in the United States. Standing five stories tall, the 35,000 square foot facility is the world’s largest Starbucks. The roastery offers an immersive experience where patrons can ride spiral escalators surrounding a 56-foot cask for 360° views, catch master roasters and baristas impart their vast knowledge on the artistry and science of coffee, and ponder at an incredible, 4-story mural by Chicago artist Eulojio Ortega.

Ortega’s artwork is a progressive piece that pays homage to farmers and coffee-growing regions, exhibiting the art and life of coffee planting, selecting, and processing. The mural, brilliant for conveying the story as visitors go from floor to floor, is interestingly located in an exit stairwell.

Traditionally, stairwells are enclosed in opaque walls, leaving them dark, isolated, and rarely utilized unless in an emergency.  This is where the architects masterfully blended their creativity with their knowledge of advanced building material technology.  To allow the mural to be visible through multiple floors, encourage stair usage and meet fire rated code requirements, the architects redesigned the 2- hour stairwell using transparent, floor-to-ceiling butt-glazed glass walls with the largest tested and listed fire resistive glass panels available.

To meet all the design and code requirements, the architects selected fire resistive, ASTM E-119 rated SuperLite II-XLB 120 by SAFTI FIRST® with Starphire Ultra-Clear glass for its superior optical clarity, large panel sizes, and butt-glazing capabilities, which eliminated the need for obstructive vertical mullions for maximum transparency.  With the largest individual glass panels over 10’ tall and over 4’ wide, this was easily accommodated by SuperLite II-XLB’s tested and listed size, which is the largest in the industry (133” maximum clear view height or width; 7,980 sq. in. maximum clear view area).  As standard glass tends to have a slight blue-green tint from the iron-induced from the glass manufacturing process, low-iron Starphire Ultra-Clear glass was used for its superior clarity, improved color neutrality, and high visible light transmission – all of which are integral to highlighting the vibrance of Ortega’s artwork and transforming what would have been an ordinary stairwell into a significant element to this Starbucks’s immersive experience.

To ensure transparency and consistent high clarity with the accompanying entrance system, SAFTI FIRST®’s GPX Builders Series Temperature Rise Door was supplied with fire resistive, ASTM E-119 rated SuperLite II-XL 90 with Starphire Ultra-Clear glass in the door vision panel. This allowed architects to exceed the 100 sq. in. door vision panel code limitation that applies to fire protective glazing like ceramics used as vision panels in 60-90 minute temperature rise doors. The GPX Builders Series Temperature Rise Door and surrounding GPX Architectural Series Perimeter Framing were supplied in a custom finish to blend seamlessly with Starbucks’s bronze palette.

The outcome is a clear, code-compliant stairwell that flaunts Ortega’s masterpiece and transforms ordinary stair-climbing into a truly one-of-a-kind Starbucks experience.

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