PNC Bank Green Wall
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The PNC Bank Green Wall; Photo Courtesy of GLTProject Name: PNC Bank Green Wall
Year: 2009
Owner: PNC Financial Services Group, Inc.
Location: Pittsburgh, PA, USA
Building Type: Commercial
Type: Living Wall
System: Single Source Provider
Size: 2380 sq.ft.
Slope: 100%
Access: Accessible, Open to Public
Submitted by: George Irwin, Green Living Technologies

Designers/Manufacturers of Record:
Modular Green Wall System: Green Living Technologies (GLT)
Design & Installation: Philly Green Wall
Design Consultant: Kari Katzander, Mingo Design
Design Consultant: BD&E Strategic Branding and Design
Engineer: Cenkner Engineering Associates
September 16, 2009; Photo Courtesy of GLTOctober 5, 2009; SoCal Office Real Estate BlogPhoto Courtesy of GLT
The PNC Financial Services Group, Inc. commissioned the largest green wall in North America (at the time, in 2009) as an innovative way to make its headquarters building more energy-efficient. The 2,380 sf wall features a variety of regional plants grown into living art on the south-facing wall of One PNC Plaza at the corner of Fifth Avenue and Wood Street in downtown Pittsburgh. It is estimated that each of the 602 panels, with 24 plants in each 2x2 sq. ft. space, will offset the carbon footprint of one person. The vertical garden is expected to help to cool the 30-story building. Preliminary studies show the south-facing living wall will be 25% cooler behind the wall than ambient temperatures (2009 Press Release). The PNC Bank shows the corporate commitment to being "Green" - the conscious dedication to implement the proven technologies that contribute to the environment, the community and the greening of urban areas.
September 11, 2009; Photo Courtesy of GLTSeptember 11, 2009; Photo Courtesy of GLT
Completed in late September, 2009, PNC Bank green wall stands 10 stories above the Pittsburgh center city as part of the PNC World Headquarters. The artistic design made up of 4" depth Green Living Wall Panels and a variety of plant material was considered as part of the geographic region allowing the design to remain constant and provide winter interest. Irrigated with 9 zones roughly 15 minutes per week, the green wall is very conservative when it comes to irrigation. It took the design team of Philly Green Wall to engineer the installation complete with custom trim and catch basin details. Logistics of lifting and installation were also the responsibility of Philly Green Wall. The Green Living Roof Panels were grown off site and delivered already mature ready to hand on the wall. No easy task, PNC had to remove a large portion of the granite to accommodate the GLT specification. Overall, the project weighes 24 tons when fully saturated.

Additional thumbnail photos:

September 16, 2009; Photo Courtesy of GLTSeptember 7, 2009; Photo Courtesy of GLTThe scaffoldings starts coming down; September 16, 2009; Photo Courtesy of GLTPNC Bank Green Wall; Photo Courtesy of GLTPhoto Courtesy of GLT
Read the detailed 9.22.09 Press Release with video "PNC Unveils Largest Green Wall in North America" here and download a Green Wall Fact Sheet which includes a Plant List. Learn all about Green Living Technologies (GLT) in The Greenroof Directory here. George Irwin can be reached for comment or presentations directly at: george@agreenroof.com.
 
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