Sustainable Healthcare Architecture by Robin Guenther & Gail Vittori

Author:Robin Guenther & Gail Vittori
Language: eng
Format: epub
ISBN: 9781118416112
Publisher: Wiley
Published: 2016-02-15T00:00:00+00:00

THE LIVING BUILDING FINANCIAL STUDY

In 2009, the Cascadia Green Building Council commissioned “The Living Building Financial Study,” which applied to nine distinct building types, including hospitals. The analysis compares the capital cost differential of applying the Living Building Challenge to a representative sampling of nine LEED Gold–certified buildings (one per building type). To do this, each base building was conceptually re-designed to meet the Living Building Challenge requirements, modified to meet the specific climatic conditions of four U.S. cities. A consultant team comprised of the New Buildings Institute, Skanska, Interface Engineering, SERA Architects, and Gerding Edlen undertook the study, with funding from The Russell Family Foundation.

The 180,231 sq. ft. (16,744 sq. m) Providence Newberg Medical Center LEED Gold–certified hospital, designed by Mahlum Architects, was conceptually modified to fulfill Living Building Challenge requirements. These design modifications, modeled for four U.S. cities representing four distinct climate zones, reduced the energy intensity of the building by approximately 20 percent, from 243 kBtu/sf/yr to 200 kBtu/sf/yr (766 kWh/sm/yr to 645 kWh/sm/ yr); renewable energy systems were added to meet the reduced demand and produce a net-zero, carbon-neutral solution (Figures 6.11–12). Collectively, these modifications added a capital cost premium of 21 to 37 percent depending on city. This graphic summarizes the modifications and costs associated with Portland— the location closest to the actual location of the Newberg facility.

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