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CASE STUDY 8: CONDE NAST BUILDING, USA “FIRST US SKYSCRAPER TO PERFORM CRADLE-TO-GRAVE ACCOUNTING” Project Name: Location: Sector: Architects: Year of Completion: Rating: Barriers Overcome: Example of: SKYSCRAPER Conde Nast Building New York City, New York USA Commercial (Office) Building Fox & Fowle Architects P.C. 1999 American Institute of Architects and AIA New York First Sustainable Skyscraper; Engineering Bias; CRADLE-TO-GRAVE ACCOUNTING IN US PROJECT OVERVIEW: The 48-storey Conde Nast Tower in mid-town Manhattan was the first of its size in the US to adopt state-of-the-art standards for energy conservation, indoor air quality, recycling systems, and use of sustainable manufacturing processes (using ‘cradle-to-grave accounting’). The building has undergone several evaluations of its systems and construction technology to evaluate its impacts on occupant health, its environmental sensitivity, and its overall energy reduction as compared to a standard building. Conde Nast Tower has received awards from the National American Institute of Architects and the AIA New York State for its innovations. POLICY OR PROGRAMMATIC CLIMATE: General Codes and Regulations on US Buildings There are an array of codes and regulations, ranging from fire protection to building safety. The general documents are ASHRAE 90.1, the 2002 NEC Code, ICC/ANSI A.117.1-1998, the 1997 Uniform Building Codes, BOCA National Building Codes, 1995/2000 CABO Model Energy Code, the 2000 IBC ASTM Reference Standards, and the 2003 International Building Code. These are supported by State and City Codes. The United States Policies on Energy Efficiency The Energy Star program is a national voluntary initiative that encourages manufacturers of products and houses (as well as the owners of buildings) to increase the efficiency of those products/buildings. The United States Policies on Environmental Sustainability The US Green Building Council’s Leadership in Energy and Environmental Design (LEED) green building rating system and guidelines provide a voluntary tool for sustainability. Additionally, the US government has mandated sustainability is many of its installations 1. 1 The Executive Orders on Sustainability from the US Federal government are cited by all Federal agencies including the Department of Defense and the Army. “EO 13101 Greening the Government Through Waste Prevention, Recycling, and Federal Acquisition”, EO 13123 “Greening the Government Through Efficient Energy Management”, EO 13148 “Greening the Government through Leadership in Environmental Management” and EO 13149 “Greening the Government Through Federal Fleet and Transportation Energy” are some of the environmental performance policies. For building regulations in the Department of Defense, there is the “Memorandum on Sustainable Product Rating Tool” (SPiRiT) that directs the incorporation of sustainable development and design principles through the use of SPiRiT, and that all MACOM must obtain a Sustainable Rating of “Bronze” or better. For the Navy, there is a broad policy for procurement that is outlined in the Naval Facilities Engineering Command Planning and Design Policy Statement-98-03, that directs selection of architects and engineers be knowledgeable and have demonstrated experience in applying sustainability concepts and principles through an integrated design approach. There is a similar policy statement found in the NAVFAC Planning and Design Policy Statement 98-02, called the “Criteria Supporting the Design of Sustainable Facilities and Infrastructure” which addresses the planning, programming, design, construction, and facilities management of naval bases and facilities. And there is the “Sustainable Development Policy Memo for the US Air Force” which is a broad policy outlining the sustainable development policy using the US Green Building Council’s Leadership in Energy and Environmental Design (LEED) Green Building Rating System as the preferred self-assessment matrix. The Air Force goal is to have 100% of its project LEED certified by FY09. They have also introduced tools like the “Environmentally Responsible Facilities Guide”. New York State Codes for Energy Conservation The New York State Energy Conservation Code specifically addresses energy conservation. New York Programs for Energy Conservation The New York State Energy Research Development Authority (NYSERDA) supports ‘green power’ by providing funding for market support. ConEdison Solutions is a leading energy service company who partnered with Community Energy Inc., a marketer for pollution-free wind and solar power, for this project. INNOVATIONS IN PROJECT TEAM CONSTRUCTION: At project design and construction phases, the architectural team strove to reduce the construction debris and use environmentally-benign materials. After construction, the project team worked with building Owner and leaseholders to develop a set of guidelines for occupants that would both maintain the green features and sustainability of the building whilst teaching the occupants how to perform their work in a more environmentally-friendly manner. GOAL OF THE PROJECT: The goals of the building were to create a tall building to redevelop Manhattan in a sustainable and eco-friendly way, and present “two faces” related to the cityscape (one that faces the somber business atmosphere of 42nd Street and the other that reflects the playful dynamism of Broadway on the other façade). FACTORS THAT DROVE ENERGY EFFICIENCY: The key factor that drove energy efficiency was the zeal of the building Owner—a public-private consortium created to promote redevelopment of the traditional heart of Manhattan. The policies and programs that facilitated this building were the NYSERDA “green power” funding support, the Green Building Tax Credits offered by ConEdison, and the public-private partnership between ConEdison Solutions and Community Energy Inc. STRATEGIES FEATURED: The Conde Nast building features environmentally-efficient gas-fired absorption chillers and a state-of-the-art curtain wall that has excellent shading co-efficients and insulating performance. The air delivery system provides 50% more fresh air than industry codes, to ensure user comfort and optimum air changes per hour. The building has photovoltaic cells integrated into the façade of the top 19 floors and has natural gas-powered fuel cells on the roof. SUSTAINABILITY FEATURES: In addition to environmental accounting on all materials used during construction, the building leaseholder options include only those materials deemed environmentally-friendly. A network of recycling chutes serve the entire building and stringent tenant procedures and guidelines are in place to ensure that sustainability is maintained. LESSONS LEARNED: Tenant Guidelines were developed in order to maintain the environmentally-sustainable practices of the building. For tall buildings, the building skin and mechanical systems work together (or against one another) more than in low-rise buildings. With great expanses of area receiving daylight, the opportunity for heat gain is tremendous. Solar panels can be integrated into the façade of tall buildings if there are supportive policies and programs, such as those offered by ConEdison and NYSERDA. For more information on this building, contact: Kirsten Sibilia at (202-627-1700) or email: [email protected].