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Evidence suggests patients
                                                                                 and staff prefer looking out

  Issue feature: Exteriors                                                       over a green roof rather than
                                                                                 a black roof.




going with green

 roofs
                                                                                 black roof,” said Sandra McCullough,
                                                                                 a LEED-accredited professional with
                                                                                 Weston Solutions’ GreenGrid Green
                                                                                 Roofs. “There is much data suggest-
                                                                                 ing that green buildings improve the
                                                                                 health and productivity of workers.”
   Can hospital systems save lives?                                                 Acting on this evidence, Northwestern
                                                                                 Memorial Hospital in Chicago recently
                                                                                 installed a green roof on its new Prentice
            By Dawn Shoemaker                                                    Women’s Hospital, and Beloit Hospital
                                                                                 has recently installed a green roof that
                                                                                 can be seen by patients and employees.
            Green roofs have gained in popularity in recent years and are more
            commonly considered for healthcare facility designs, yet they        The Cost of Medical Mistakes
            remain far from widespread. Many building professionals believe      In 1999, the Institute of Medicine released
            the medical construction industry would be wise to take notice and   the landmark report “To Err Is Human,”
            learn more about the benefits of green roofs and the impact they     which estimated that medical mistakes
                                                                                 are costing the United States between
            could have on their businesses.
                                                                                 $17 billion and $29 billion annually.
                                                                                     To remedy the situation, the report em-
            Benefits of Green Roofs                                              phasized a “systems” approach to facili-
            Studies indicate green roofs achieve significant results. For        ties, including the way they are designed,
            example, the National Research Council Canada reports green          built and maintained. The goal of the report



                                                                                                                                  courtesy of Weston Solutions, Inc. GreenGrid Green Roofs
            roofs, compared to a conventional blacktop flat roof, can sig-       was to look at the medical setting holisti-
            nificantly reduce average daily cooling requirements on facili-      cally and consider how entire hospital sys-
            ties that are a few stories or less. Consequently, such a facility   tems could be changed to make facilities
            can reduce the size of its air-conditioning equipment and, in        healthier and reduce the number of deaths.
            so doing, can lower its construction and operating costs.                One significant systems change is to
                Storm-water runoff is reduced by as much as 95 percent after     adopt sustainable technology in general.
            a one-inch rainfall when a green roof is installed. The dramatic         “Hospitals are dangerous places
            difference can prevent the need for more elaborate — and costly      because of some systems, and systems
            — roof drainage and retention systems while simultaneously           are a design problem,” said Derek Parker,
            reducing the impact on local drainage and sewer systems.             co-founder of the Center for Health
                Also, green roofs soften noise on the floor directly beneath     Design, a nonprofit think tank, and a
            the roof. Studies indicate exterior noise is reduced by as much      director at Anshen + Allen Architects, a
            as 10 percent when a green roof is installed. Studies have           San Francisco, Calif.-based healthcare
            also shown the views of nature benefit patients and staff.           design firm. Parker also said hospitals
                “We are finding anecdotal evidence suggesting that pa-           must look beyond building fancy entries
            tients much prefer looking out over a green roof rather than a       or installing decorative carpets, furni-



 46    Medical Construction & Design • March/April 2007	                                                         www.mcdmag.com
Storm-water runoff is reduced by as much
                                                  as 95 percent after a one-inch rainfall when
                                                  a green roof is installed. The dramatic
                                                  difference can prevent the need for more
                                                  elaborate — and costly — roof drainage
                                                  and retention systems.



                                              green cleaning chemicals to low-PVC flooring. Kaiser is also
                                              among those companies that sees the benefits of green roofs.

                                              Different Types of Green Roofs
                                              “Green roofs are not rooftop gardens or healing gardens with
                                              trees and shrubs, as are found on some medical facilities,” ex-
                                              plained McCullough. “Instead, Kaiser [Permanente] and other
ture and other aesthetic elements, and        facilities are installing extensive green roofs, which involves the
awaken to the possibility that new hospi-     placement of very low-maintenance, ground-cover plants such
tal systems and design can save lives.        as sedum, grasses and other smaller species. The plants and
    Many medical facilities are reluctant     growth media [soil] are placed directly on top of the existing roof.”
to experiment with new, untested design          According to McCullough, some green roofing systems
changes or facility operations because        are built directly on the roof, requiring several laborers to haul
of the possible added costs involved. Ac-     plants, soil and other components to the rooftop, where the
cording to financial consultants Kaufman,     green roof is then installed. Another system uses modules, which
Hall & Associates, “More than half of         are planted off-site by a professional landscaping company.
U.S. hospitals and healthcare systems            “Because so many hospitals are concerned about costs and might
struggle financially in the face of com-      be unwilling to take a ‘risk’ by installing a green roof, a modular system
petitive pressure from physician-owned        might be a good option,” said McCullough. “Modular systems tend to
facilities, increasing uncertainty about      be less expensive than a green roof built on top of an existing roof.”
the future of government-based pay-              Studies from Europe, where green roofs have been com-
ments and the financial strain of high        mon since the 1970s, indicate the life expectancy of an existing
debt loads, infrastructure improvements       roof under a green roof can double. This is because membranes
and technology-related expenditures.”         under green roofs are not subject to the vast swings in tempera-
    Parker believes any added costs           ture of typical roofs and are protected from ultraviolet light. This
in improved hospital systems or de-           can prove to be a significant savings for a medical facility.
sign will pay off, not only in fewer pa-
tient deaths and staff errors, but in         Green for Green’s Sake?
reduced operating costs as well.              “No hospital should go green just for green’s sake,” said Mc-
    “It costs a lot of money to build [and    Cullough. “They should always evaluate [implementing green
run] a poor hospital and only a little more   systems], including green roofs, and if they determine going green
to build a better hospital,” he said.         can improve patient health, safety or outcomes, or help reduce
                                              building operating costs, then it should be strongly considered.”
Kaiser Goes Green                                 McCullough said incorporating green components into a
Kaiser Permanente is a good example of        medical facility should always be viewed as a system in and
a hospital facility taking a systems ap-      of itself, which is usually only as strong as its weakest link.
proach to building design and operation.          “If a green roof is installed but an antiquated or poorly
With more than 63 million square feet         functioning HVAC system is in place, many of the en-
of medical space at various locations         ergy-saving benefits of the green roof may be lost,” she
around the U.S., Kaiser believes it can       said. “It’s the big picture that is important. The goal must
correlate patient outcomes with design,       be that all hospital systems and design features work to-
and is doing this by taking into consid-      gether to help improve the overall health of the facility.” n
eration everything from the direction a
patient’s room faces, to the products used    Dawn Shoemaker is a researcher and writer for the building and professional
to clean the room. It is also incorporat-     cleaning industry working with AlturaSolutions Communications. She may be
ing a variety of green measures, from         reached at (773) 525-3021.




www.mcdmag.com 	                                                                March/April 2007 • Medical Construction & Design    47

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Hospital Going with Green Roofs

  • 1. Evidence suggests patients and staff prefer looking out Issue feature: Exteriors over a green roof rather than a black roof. going with green roofs black roof,” said Sandra McCullough, a LEED-accredited professional with Weston Solutions’ GreenGrid Green Roofs. “There is much data suggest- ing that green buildings improve the health and productivity of workers.” Can hospital systems save lives? Acting on this evidence, Northwestern Memorial Hospital in Chicago recently installed a green roof on its new Prentice By Dawn Shoemaker Women’s Hospital, and Beloit Hospital has recently installed a green roof that can be seen by patients and employees. Green roofs have gained in popularity in recent years and are more commonly considered for healthcare facility designs, yet they The Cost of Medical Mistakes remain far from widespread. Many building professionals believe In 1999, the Institute of Medicine released the medical construction industry would be wise to take notice and the landmark report “To Err Is Human,” learn more about the benefits of green roofs and the impact they which estimated that medical mistakes are costing the United States between could have on their businesses. $17 billion and $29 billion annually. To remedy the situation, the report em- Benefits of Green Roofs phasized a “systems” approach to facili- Studies indicate green roofs achieve significant results. For ties, including the way they are designed, example, the National Research Council Canada reports green built and maintained. The goal of the report courtesy of Weston Solutions, Inc. GreenGrid Green Roofs roofs, compared to a conventional blacktop flat roof, can sig- was to look at the medical setting holisti- nificantly reduce average daily cooling requirements on facili- cally and consider how entire hospital sys- ties that are a few stories or less. Consequently, such a facility tems could be changed to make facilities can reduce the size of its air-conditioning equipment and, in healthier and reduce the number of deaths. so doing, can lower its construction and operating costs. One significant systems change is to Storm-water runoff is reduced by as much as 95 percent after adopt sustainable technology in general. a one-inch rainfall when a green roof is installed. The dramatic “Hospitals are dangerous places difference can prevent the need for more elaborate — and costly because of some systems, and systems — roof drainage and retention systems while simultaneously are a design problem,” said Derek Parker, reducing the impact on local drainage and sewer systems. co-founder of the Center for Health Also, green roofs soften noise on the floor directly beneath Design, a nonprofit think tank, and a the roof. Studies indicate exterior noise is reduced by as much director at Anshen + Allen Architects, a as 10 percent when a green roof is installed. Studies have San Francisco, Calif.-based healthcare also shown the views of nature benefit patients and staff. design firm. Parker also said hospitals “We are finding anecdotal evidence suggesting that pa- must look beyond building fancy entries tients much prefer looking out over a green roof rather than a or installing decorative carpets, furni- 46    Medical Construction & Design • March/April 2007 www.mcdmag.com
  • 2. Storm-water runoff is reduced by as much as 95 percent after a one-inch rainfall when a green roof is installed. The dramatic difference can prevent the need for more elaborate — and costly — roof drainage and retention systems. green cleaning chemicals to low-PVC flooring. Kaiser is also among those companies that sees the benefits of green roofs. Different Types of Green Roofs “Green roofs are not rooftop gardens or healing gardens with trees and shrubs, as are found on some medical facilities,” ex- plained McCullough. “Instead, Kaiser [Permanente] and other ture and other aesthetic elements, and facilities are installing extensive green roofs, which involves the awaken to the possibility that new hospi- placement of very low-maintenance, ground-cover plants such tal systems and design can save lives. as sedum, grasses and other smaller species. The plants and Many medical facilities are reluctant growth media [soil] are placed directly on top of the existing roof.” to experiment with new, untested design According to McCullough, some green roofing systems changes or facility operations because are built directly on the roof, requiring several laborers to haul of the possible added costs involved. Ac- plants, soil and other components to the rooftop, where the cording to financial consultants Kaufman, green roof is then installed. Another system uses modules, which Hall & Associates, “More than half of are planted off-site by a professional landscaping company. U.S. hospitals and healthcare systems “Because so many hospitals are concerned about costs and might struggle financially in the face of com- be unwilling to take a ‘risk’ by installing a green roof, a modular system petitive pressure from physician-owned might be a good option,” said McCullough. “Modular systems tend to facilities, increasing uncertainty about be less expensive than a green roof built on top of an existing roof.” the future of government-based pay- Studies from Europe, where green roofs have been com- ments and the financial strain of high mon since the 1970s, indicate the life expectancy of an existing debt loads, infrastructure improvements roof under a green roof can double. This is because membranes and technology-related expenditures.” under green roofs are not subject to the vast swings in tempera- Parker believes any added costs ture of typical roofs and are protected from ultraviolet light. This in improved hospital systems or de- can prove to be a significant savings for a medical facility. sign will pay off, not only in fewer pa- tient deaths and staff errors, but in Green for Green’s Sake? reduced operating costs as well. “No hospital should go green just for green’s sake,” said Mc- “It costs a lot of money to build [and Cullough. “They should always evaluate [implementing green run] a poor hospital and only a little more systems], including green roofs, and if they determine going green to build a better hospital,” he said. can improve patient health, safety or outcomes, or help reduce building operating costs, then it should be strongly considered.” Kaiser Goes Green McCullough said incorporating green components into a Kaiser Permanente is a good example of medical facility should always be viewed as a system in and a hospital facility taking a systems ap- of itself, which is usually only as strong as its weakest link. proach to building design and operation. “If a green roof is installed but an antiquated or poorly With more than 63 million square feet functioning HVAC system is in place, many of the en- of medical space at various locations ergy-saving benefits of the green roof may be lost,” she around the U.S., Kaiser believes it can said. “It’s the big picture that is important. The goal must correlate patient outcomes with design, be that all hospital systems and design features work to- and is doing this by taking into consid- gether to help improve the overall health of the facility.” n eration everything from the direction a patient’s room faces, to the products used Dawn Shoemaker is a researcher and writer for the building and professional to clean the room. It is also incorporat- cleaning industry working with AlturaSolutions Communications. She may be ing a variety of green measures, from reached at (773) 525-3021. www.mcdmag.com March/April 2007 • Medical Construction & Design    47