Posts tagged with "Sustainability":
The facility will serve students, building operators, building energy auditors, and will be used to support the development of new business ventures in energy efficiency.The Consortium for Building Energy Innovation (CBEI)—formerly the Energy Efficient Buildings Hub—at Philadelphia’s Navy Yard, is a research initiative funded by the Department of Energy and led by Penn State University that seeks to reduce the energy usage of commercial buildings to 50% by 2020. KieranTimberlake, a Philadelphia-based firm located three miles from Navy Yard, was selected by Penn State to renovate a 1940’s Georgian-style brick building to be a living laboratory for advanced energy retrofit technology. Included in the brief was an addition to the building, which evolved into a new stand-alone building across the street on Lot 7R, which aptly became the name of the building. The new 7R building, literally tied to the ground with groundwater-sourced heat pumps, is also formally and tectonically organized around passive solar strategies. A number of daylighting studies drove a re-shape of the building. An initial four-story cube was introduced in Robert A.M. Stern and Associates’ masterplan for the site, but became a long linear east-west oriented low-lying building. This configuration maximizes daylighting while minimizing over-shadowing on the site, establishing a framework for campus growth. 7R is loaded with environmental features including a green roof, a gray water reuse system, integrated daylighting strategies, and geothermal wells. These environmental priorities influenced an approach to building envelope design that balances performance with overriding aesthetics and compositional goals. David Riz, a partner at KieranTimberlake, says the composition of the facade is integral to the siting of the building: “In a large number of our projects, we accentuate the orientation of our buildings with facade treatments.” Brick, chosen for its relationship to a historic Navy Yard context, is utilized as a ‘solar shade,’ opening and closing along the south facade to manage direct heat gain, while eliminating the need for mechanized shades. ‘Rips’ in the brick fabric reveal a transparent glazing system adorned with horizontal sun shade louvers. To the north, the building visually connects to adjacent League Island Park by maximizing glazing along an elevated second floor ‘tree-top’ interior walkway. Arguably the most significant feature of the building envelope is a twin-wall assembly of insulated translucent panels, seen prominently along the length of the north facade, allowing the architects to maximize the level of daylight. David Riz says the panels are notably used both performatively and compositionally, spanning 19’ tall from the plenum to the roof coping: “We wanted to create syncopation in the patterning. We were trying to get a dual read on a long linear building introducing key moments as your eye moves along the building.” The panels are incorporated into the west facade as a primary material to help manage a harsh late-afternoon sun in the large auditorium’s break out space. Riz celebrates the success of the facade in managing a difficult western orientation through diffusing harsh sunlight into a soft glow: “When you’re in the break out space, you simultaneously sense the daylight from the west, a view to the north park, and also a view through the flying brick screen to the south. That’s where it all comes together.” Riz considers the quality of daylight filtering through the building envelope to be one of the project’s greatest strengths: “There are very nice moments as you walk through the building because its so narrow where you experience a simultaneity of the south facade and the north facade: a hint of the brick screen through the classrooms, and bays of transparent panels to the other direction.” KieranTimberlake, who recently received an award for Innovative Research at ACADIA 2015, continues to monitor for thermal performance and storm water analysis. In this regard, the 7R building is a blend between high tech data monitoring, paired with low-tech passive strategies and off-the-shelf products. The project, completed within the last year, will be utilized by Penn State for various research programs.
At six stories high, this is the tallest living Biofilter wall in North America.Neatly contained behind a glass and steel structure is Diamond Schmitt Architects and Nedlaw Living Walls’ latest creation: a 1,370 s.f. vertical living wall assembly, located within a prominent skylit atrium in Vanier Hall, a Social Sciences building on the University of Ottawa’s campus. What appears as a vertical leafy green decorative wall is actually a sophisticated system fully integrated into the building’s air handling system. Contaminated indoor air is drawn through the filtration mechanism—made of plant and root media—where microorganisms consume airborne pollutants as food, breaking them down into water and carbon dioxide. The biofilter effectively cleanses over 13,800 CFM of air. Birgit Siber, Principal at Diamond Schmitt Architects, has incorporated over a dozen large living wall installations in her projects: “One of the things I find so elegant about the initiative of using plants on a large scale within buildings is that it contributes to the indoor environment on so many fronts.” Not only does the wall cleanse dust and odor from the indoor air, but in the atrium, the living wall frames the school’s collaborative social space and functions as an acoustical attenuation device. The living wall can be seen prominently from the exterior, contributing to the school’s identity. The cost of the assembly was determined to be “cost neutral” by the University’s administration, which is seeking a LEED Gold Certification for the building. Biofiltration is a product of research developed at the University of Guelph’s Controlled Environment System Research Facility (1.5 hours west of Toronto), and resulted from an investigation done for the International Space Agency to purify air at a proposed lunar base. Siber teamed with researcher Dr. Alan Darlington, founder of Nedlaw Living Walls, to develop an installation to showcase his research 12 years ago. From this early collaboration between Siber and Darlington, a “no waste” spirit has driven the development of the system, which continues to evolve through seven built versions. Darlington attributes these developments to an underlying desire to improve building performance, “We’ve done a lot of work to streamline and make this as efficient as possible without losing the aesthetics of this system.” The wall at Vanier Hall is loaded with creative features to close the energy “loop holes” found in traditional building systems. Storm water runoff and HVAC condensation are captured and reused for watering the hydroponic plants, while a sophisticated daylight-integral lighting system limits electricity usage used for plant growth to adjust lighting conditions on the plants. The biofiltration living wall system is scalable, having been deployed by Diamond Schmitt Architects and Nedlaw Living Walls in city halls, offices, and universities. It has been developed in coordination with both new construction and renovation projects. Darlington notes that under ideal conditions, roughly 10 square feet of biofilters can generate enough “virtual” outside air for 5-10 people. Diamond Schmitt Architects currently have two US projects under construction – a mixed use tower in Buffalo, and a stacked sequence of four two-story living walls in an academic building at the University of Michigan in Ann Arbor. Architect Birgit Siber of Diamond Schmitt Architects will be speaking at the upcoming Cities Alive conference in New York City on October 6th on a panel discussion from 10:30am-noon entitled, "Living Walls Biofilters: Design, Operating Costs and Return on Investment."