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The Papago Gateway Center recently became the first mixed-use building in Tempe, AZ, providing green laboratory space to private biotech companies. The campus design utilizes two of its exterior walls with Teak sandstone in innovative ways, serving as entrance landmarks for the building’s visitors and tenants. The material was supplied by Tab India through its U.S. office, Amsum & Ash Inc.
On the east and west sides of the structure, building guests and occupants will find the two stone feature walls in a “folding” appearance. “We were able to create an idea of making the stone look like a paper fold,” said Project Architect Luis Huertas, AIA, NCARB, LEED AP of SmithGroup’s Phoenix, AZ, office. “Everybody loves that aesthetic. Those areas are used as entrance landmarks, so people know where they’re going.”
Teak sandstone is also utilized in three axis points of the five-story parking structure, bringing the project total to approximately 32,000 square feet of exterior stone.
The stone installation took four and a half months to complete, according to Mark Andrews, Chief Commercial Estimator of Sun Valley Masonry in Phoenix, AZ, which installed the exterior stone for the project.
Andrews explained that the sandstone is anchored to a metal stud framing with stainless steel anchors. “Sun Valley Masonry provided the shop drawings and engineering of the system,” he said.
Stone also carried into the interior of the building for use in two lobbies. To highlight the elevator area, 1- x 1-foot pieces of a red-colored marble are featured on the wainscoting and floor area surrounding the elevator, while the rest of the floor and wainscoting area of the lobbies are comprised of 4- x 2-foot pieces of white limestone.
Huertas explained that figuring out the framing for the elevator was difficult. “With the way the building segments, all other materials had to be adjusted,” he said. “There is [a significant] difference in angle, which created all different dimensions. Outside it’s 30 degrees, while inside it’s 25.8 degrees. We kept the stone flat, and everything shifted to meet the stone.”
Since its completion, the Papago Gateway Center has been pre-certified for Silver LEED-CS Certification, for the project’s innovation and sustainable design. “The developer [and client], Lee Chesnut from Chesnut Properties, knows the industry and how buildings operate and work,” said Huertas. “Everything he does is ‘buildings that matter.’ “
In addition to the east and west stone clad walls, the north and south elevations of the Papago Gateway Center are completely glazed, allowing for natural light in the interior spaces. The southern edge consists of over 2,000 operable aluminum louvers that will open and close depending on the sun’s movement.
If received, the project will be the first building in Arizona to achieve this designation. In addition, it is currently on track for Gold certification.
Sidebar: Papago Gateway CenteTempe, AZ
Architect: SmithGroup, Phoenix, AZ
Stone Supplier: Tab India through its U.S. office, Amsum & Ash Inc. (Teak sandstone)
Stone Installer: Sun Valley Masonry, Phoenix, AZ