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Heat Island Effect

June 23, 2011 | Posted by Daggan, Clinton | Permalink

Building rooftops constitute 11.5 percent of the overall surface area in New York City, or approximately 944.3 billion square feet, an entire extra borough.  Consequently, rooftops have an enormous impact on the environment of the city and on the economics of owning and developing real estate.  The following article was published in the New York Law Journal on June 20, 2011, and discusses tax incentives, grant programs, zoning allowances and other laws and initiatives enacted at the federal, state and local levels to encourage the installation of sustainable roofs.  The article also discusses the impacts that a sustainable roof can have on a project seeking certification with the Leadership in Energy and Environmental Design ("LEED") program. 

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December 7, 2010 | Posted by Winefsky, Josh | Permalink

Earning LEED certification requires the accumulation of credits in a variety of categories.  The more credits a development or renovation project achieves, the higher the LEED rating the project will receive.  For some projects that seek LEED certification, the identification of “low-hanging fruits,” those easy to achieve and low-cost credits, can be a starting point in project planning.

One such credit, Sustainable Sites Credit 7.2: Heat Island Effect – Roof, awards points for installation of a roof with a high solar reflectance index (“SRI”), or a vegetated roof.  SRI is the measure of a surface’s ability to reflect solar heat – a standard black surface has an SRI of 0, while a standard white surface has an SRI of 100.

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