GPW: Heinz 57 Center/Gimbels Building Restoration

February 27, 2010 at 12:51 am

heinz57-h

Formerly the Gimbel’s Department store, the Heinz 57 Center  in Pittsburgh, PA, is a wonderful example of  urban renewal.  Closed and neglected for about 14 years starting  in the late eighties, the  now restored building has been put to reuse not only in a sustainable, but beautiful  way.   In 1998 architects Burt Hill Kozar Rittlemann Associates (now Burt Hill) were brought on board to redesign the historical but ailing structure.

heinz57-lamagAlong with McKnight Development Partners, the architects incorporated a dramatic 50′ diameter octagonal atrium which runs from the roof down through seven floors.   Suddenly flooded with natural light, the Heinz Corporation was  enticed to occupy the top seven floors for their North American headquarters.   Yet curiously, environmental concerns were not driving factors for  the greenroof then; aesthetics, however, definitely were.

Although the building itself was  surrounded by  a spectacular city panorama featuring  a soaring cathedral  amidst an eclectic mixture of towering skyscrapers,  the views from the lovely floor-to-ceiling windows of the fourteenth-floor  penthouse suite  were less than exciting or acceptable: a hot black rubber roof under an equally unappealing  nine-foot-high  brick parapet wall greeted Heinz occupants.   So the architects decided a pleasing landscape atop the roof would do the trick.

The Heinz 57 Center; Photo Source: The Post-GazetteCompleted in the fall of 2001, the Heinz 57 Center was the first vegetated roof in downtown Pittsburgh,  where executives  enjoy sweeping meadow vistas wrapping their offices and blanketing the thirty-foot-wide terrace.   Four informal seating areas constructed with high-density recycled plastic lumber decking and concrete paving blocks provide informal gathering spots;  by all accounts the colorful corporate roof garden is a hit!

Last year I was interviewed by Carmen J. Lee who was writing for h – The Magazine of the Heinz Endowments, reporting how “Pittsburgh roofs are the new fertile turf for environ-mentally sustainable construction projects that aim to dig in and blossom” in her article “Top Soil” (pages 24-31).   The Heinz 57 building was, of course, one of the sites featured and you’ll see I was quoted  with more  of an inspirational bent rather than specific to the project.   Carmen also profiled the local environmental group, 3 Rivers Wet Weather, which is responsible for utilizing $525,000 in federal funding plus a $125,000 Heinz Endowments  grant to sponsor a 2005 project to create more greenroofs here.

Heinz 57 Center; Photo Courtesy of Roofscapes, Inc.

Photo Courtesy Roofscapes, Inc.

In a city with an over-burdened sewer system with frequent overflows, Pittsburgh officials and researchers cite the greenroof project often as a fine example of sustainable redevelopment.   Situated within a pedestrian-friendly mixed-use business district with shops, restaurants and businesses, the Heinz 57 Center is worker friendly as well as eco-friendly, providing their 800+ employees with a variety of alternate forms of transportation.   Although Heinz executives may not have initially specified the extensive greenroof for ecological reasons, they certainly appreciate the many noticeable environmental benefits, such as  the cooling respite from the city canyon and the reduction of stormwater runoff; it’s estimated that the roof retains 55% of  yearly rainfall.

Heinz 57Center; Photo Courtesy of Roofscapes, Inc.

Charlie Miller, P.E., and his company Roofscapes, Inc.  have been responsible for a large number of award-winning greenroof projects, including this one.   His private and public portfolio runs the gamut from municipal to corporate, institutional to retail, and even includes some single-family residences.    Charlie won the 2005 Green Roof Award of Excellence  with the Heinz 57 Center/Gimbels Building Restoration in the Extensive Industrial/Commercial category, and we featured  it in the 2009 Greenroofs of the World Calendar™ by Greenroofs.com for the month of March:Heinz 57 Center in June of 2007, as illustrated in The 2008 Greenroofs of the World Calendar  

Over 18,000 plants were selected by Roofscapes, who used their Type III: Savannah Roofmeadow ® system.   Landscape architect Steven L. Cantor researched this project in depth, and you can read  his extensive case study including complete plant lists on pages 139-142 in the excellent book  Green Roofs in Sustainable Landscape Design,” 2008, available for purchase on Amazon.com.

The Heinz 57 Center; Photo Courtesy of Roofscapes, Inc.Steven  relates how  the Heinz 57 Center plant selection encompassed “32 xeric species from nineteen plant genera, including six North American natives; approximately one-third of the plants are sedums, and the balance  is a range of herbs, meadow grasses, and meadow perennials that provide differences in plant height, texture, and bloom color.”

It’s hard to believe, but the roof is not irrigated and has flourished with minimal maintenance, which includes  twice yearly  weeding and an annual light application of fertilizer.

Pittsburgh has really come along way from its gritty  industrial Steel Town roots, emerging as a  leader in green building.   According to the Green Building Alliance, as of July, 2009 the City of Pittsburgh is home to 39 LEED-certified buildings, ranked eighth in the United States for overall number of projects.  meadowsheinz

About two dozen more eco-friendly  greenroofs are found within metro Pittsburgh; read the May 19, 2009 article  “More city buildings cultivate savings by covering roofs with plants” by Sally Kalson of the Pittsburgh Post-Gazette to learn about additional living roofs in the area.

We only have  a handful  of those references listed, so remember to send us case studies of these other projects so we may share it with all of you in the greenroof community in The Greenroof & Greenwall Projects Database.

Kudos to the designers, corporate leaders and all the stakeholders of this inspiring city-core  Heinz 57 Center  renovation  for their foresight –  environmental, aesthetic, or otherwise –  to successfully integrate a greenroof into the overall design for the benefit of the building’s occupants!

Heinz 57 Center, Courtesy of Roofscapes, Inc.

~ Linda V.