Methodist West Hospital - Sustainability

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Light fixtures are strategically placed to provide illumination only where necessary without
shining light onto adjacent properties, into the patient rooms, or into the night sky. Light
levels are automatically reduced late at night and early in the morning.

                                                          Doing More With Less:
                                                          West Des Moines Hospital is a Model for Sustainability
METHODIST WEST                                            “Relaxing” and “approachable” are not usually      birthing center, medical and surgical, as well
HOSPITAL                                                  the first words to describe a hospital, but        as an array of other patient and community
A model for sustainability
                                                          Methodist West Hospital looks nothing like         services. Sustainability is woven throughout
                                                          a hospital. The 95-bed, $83 million facility       the hospital with tremendous outcomes:
                                                          in West Des Moines, Iowa feels more like an        creating a healthy environment for delivering
                                                          upscale hotel. Patients and families enjoy         health care with energy costs that are
                                                          spacious private rooms along with amenities        reduced by 15% and water use lowered by
                                                          such as a healing garden, cyber café, fine         20%.
                                                          dining, coffee bar, gift shop, common spaces
                                                          filled with natural light and views of the lake.
                                                                                                             Here lies the real beauty: Methodist West
                                                                                                             Hospital does more with less. Iowa’s newest
                                                          Iowa Health – Des Moines’ new                      licensed acute care hospital, along with
                                                          environmentally friendly hospital in West          its neighbors — Lakeview Medical Park,
                                                          Des Moines includes ambulatory/acute care,         Lakeview Ambulatory Surgery, the Iowa Clinic
                                                          emergency department, imaging, surgery,            and the Des Moines Orthopedic Surgeons

                                                       without shining light on adjacent properties,      High performance glass was specified to
                                                       into the patient rooms or into the night           maximize the energy efficiency of doors
                                                       sky. Light levels are automatically reduced        and windows. The exterior walls and roofs
                                                       during low-use times (late at night and early      are constructed with superior thermal
                                                       morning).                                          performance characteristics to reduce energy
                                                                                                          costs for heating and cooling. The entire
                                                                                                          roof area was designed to reflect heat from
                                                       The LEED Certification point system was used
                                                                                                          sunlight rather than absorb it to reduce the
                                                       as a guide to develop and evaluate an overall
                                                                                                          summer air conditioning loads. Combined
                                                       strategy for achieving an environmentally
                                                                                                          with the enhanced exterior wall and roof
                                                       responsible facility. Every decision
                                                                                                          performance, the hospital is expected to see a
                                                       involving the design, material selection
                                                                                                          15% reduction in energy use.
                                                       and construction was judged on the value
                                                       brought to the project and its impact on
                                                       the environment. Many key initiatives were         Individual control of lighting is provided
  The atrium includes a large water feature and
                                                       incorporated relating to site design, energy       in 90% of the hospital spaces. Automated
 a fire place bringing both calming and familiar       and recourse utilization, materials and interior   lighting controls in halls, lobbies and other
amentities to dispel the institutional nature of the
                                                       environment.                                       non-clinical spaces reduce electricity
hospital environment. Views to the lake from the
 coffee bar, cyber cafe and gift shop compliment                                                          demands. The system automatically reduces
the concierge and registration functions that are                                                         lighting levels during low-use, nighttime
              prominent in this space.                 Throughout the project, patient safety was
                                                                                                          hours. Occupancy (motion) sensors in non-
— will draw more than 1 million people to              a top priority. Many steps were taken during
                                                                                                          patient treatment areas automatically turn
the area for services by 2012. This will be            construction to reduce the risk of infectious
                                                                                                          lights off when rooms are not being used.
done with minimal environmental impact                 hazards including cleaning and sealing of
                                                                                                          Highly efficient light fixtures and bulbs were
because sustainable design features are used           ductwork, dust control, HEPA-filtering and
                                                                                                          incorporated, including newly available LED
throughout the site and facility.                      temporary fan units regulated the humidity
                                                                                                          super efficient lighting at select locations.
                                                       level during summer construction which
                                                       eliminated the potential of mold sources.
This sustainable project began from the
                                                                                                          The heating and cooling systems are
ground up, beginning with site selection
                                                                                                          designed to maximize the level of fresh
continuing throughout the design and                   Energy Reductions of 15%
construction process, according to Sherrilyn           After schematic design, the building’s
Stewart, Director of Design, Construction and          structure was changed from a steel frame to
Properties Management for Iowa Health-                 cast-in-place concrete. The structural systems
Des Moines. The site design maximizes the              include material reuse and replacement of
amount of green space, and incorporates a              cement with flyash, ground granulated blast-
lake which is a people-friendly amenity and            furnace slag and silica fume in concrete mix.
provides storm water control.                          This resulted in a significant cost benefit and
                                                       a structure that is more energy efficient, has
The 49-acre campus includes a healing                  less vibration, reduces noise transmission and
garden for patients and exterior seating at            eliminates air-polluting fireproofing.
a café for staff and visitors. Landscaping in
and around parking areas create a park-like            The building’s concrete structure provides
setting around the hospital. All paved areas           a thermal storage mass that helps mitigate
are concrete rather than asphalt to reduce the         temperature swings during the day.
“heat island effect.”                                  This reduces the need to accommodate
                                                                                                              In the air distribution systems, the use of “fan
                                                                                                            wall technology” replaces large single fans with
                                                       differences between daytime and nighttime             an array of smaller fans. This reduces electrical
                                                                                                           consumption by allowing for individual small fans
Light fixtures are strategically placed to             temperatures with the heating and cooling
                                                                                                           to be turned on or off depending on the amount of
provide illumination only where necessary              systems – thus reducing energy consumption.                            airflow required.

outside air that is conditioned and brought       projected energy savings of $87,395. The           sources that are regionally available to reduce
into the building. This promotes enhanced         sustainable building design recently won           the cost and energy consumption caused by
indoor air quality creating a healthy interior    a top award from the American Council of           long distance transportation. These materials
environment. Mechanical equipment for             Engineering Companies (ACEC)-Iowa.                 included steel, brick and concrete masonry
cooling systems was selected that use no                                                             products, stone, fabricated wood products
chlorofluorocarbon refrigerants, which are                                                           (such as cabinets and casework), concrete and
                                                  Water Usage Reduced by 20%
harmful to the Earth’s atmosphere.                                                                   gypsum board.
                                                  The use of fresh water for irrigation of
                                                  landscaping and lawns was reduced by 50%
Fifty-percent of the interior spaces, including   with highly efficient systems that incorporate     In addition to local materials, local labor
all patient care areas, were provided             drip application sensors and controls. Some        was engaged. Over $37 million was paid to
individual control for air temperature to         of the campus was planted with drought-            local labor and local contractors providing
promote increased comfort and reduced             resistant, native vegetation that doesn’t need     hundreds of jobs over a two-year period
energy consumption. High efficiency boilers       irrigation.                                        during a recession. The operations of the
are used to create steam and hot water for                                                           hospital will continue to drive economic
the building systems and equipment. Energy                                                           benefits to the local community for years to
economizers are used on the chiller systems       No fresh water is used to cool medical or food     come.
to efficiently create cold water for use in air   service equipment. Low water plumbing
conditioning. Premium efficiency fan and          fixtures reduce water used by sinks and toilets
                                                  by 20%. The cooling tower design and closed        Minimizing Contaminants
pump motors were provided for the heating
and cooling systems to conserve electrical        loop cooling for compressors reduces the           Construction activities were performed
energy and high efficiency hot water heaters      use of potable water in the building system        implementing controls to prevent
generate hot water for patient care, kitchen      equipment.                                         environmental air and water pollution by
and public use area functions.                                                                       controlling run-off and erosion, and by
                                                                                                     limiting the creation of dust. Erosion control
                                                  Construction Waste Reduced by 75%
                                                                                                     measures were rigorously maintained and
Several unique applications were                  A fast-track approach to the design and            inspected weekly by an independent agency.
incorporated including a lower temperature        construction involved sequential bid
heating water system fueled by high               packages that aligned with the progress of
efficiency condensing boilers. Even though        the construction. The team delivered the           Policies were established to minimize
the condensing style boilers have been            project four months sooner than originally         latent contaminants that could be captured
around for years, applying them as the            anticipated and reduced the project cost           inside the building. Hidden spaces such as
primary heating source for a hospital is very     by $5 million. Construction waste was              stud wall cavities were thoroughly cleaned
unique. In the air distribution systems, the      reduced by 75% by collecting and processing        prior to being concealed later. Absorptive
use of “fan wall technology” replaces large       recyclable materials such as concrete, steel,      materials such as carpet and ceiling tiles
single fans with an array of smaller fans. This   paper, plastics, wood and gypsum board.            were installed after materials that initially
reduces electrical consumption by allowing                                                           emit hazardous vapors and fumes were fully
for individual small fans to be turned on                                                            cured. To protect the internal ducts that are
or off depending on the amount of airflow         New Products and Materials Contribute to           part of the heating, cooling and ventilation
required. During and following construction,      Sustainable Outcome                                air system, all ducts were continuously sealed
each building system was monitored by a           Approximately 10% of new products                  during construction. Heating and cooling
commissioning agent to ensure that the            purchased for the construction were                systems were not used during construction
installation was completed in a manner that       manufactured from recycled material,               to eliminate the collection of dust and other
will provide the necessary performance for        including wood products, gypsum board,             contaminates.
comfort and energy use.                           concrete, steel, wall protection, floor tile and
                                                                                                     Adhesive and sealants inside the building
Iowa Health-Des Moines received an energy                                                            were carefully selected to reduce
rebate check from MidAmerican Energy for          Twenty percent of materials used in the            volatile organic compound emissions.
energy conservation strategies. The $115,500      building construction were procured from           Environmentally-friendly paints, stains,
incentive payment is in addition to the annual                                                       sealers and carpet were used for interior

J ULY 2010                          finishes. Cabinets and other manufactured        Energy and water use is monitored
                                    wood products were specified not to contain      continually to ensure that all mechanical and
                                    harmful substances such as formaldehyde.         electrical systems and fixtures continue to
designSTAT is published by Shive-   Durable and easily maintained materials          operate as designed.
Hattery.                            were selected throughout to increase the life
                                    expectancy of the building, reduce future
                                                                                     Methodist West Hospital achieves a level
                                    maintenance and replacement costs, reduce
Shive-Hattery contacts              the use of new raw materials and reduce
                                                                                     of sustainable design that is holistic,
in Iowa, Illinois and               future use of land fills.
                                                                                     dealing with the overall well being of the
Missouri:                                                                            environment, the community and the
                                                                                     building occupants. The outcomes achieved
316 2nd Street SE, Ste 500          Toxic substances such as lead, cadmium           at this new hospital will be carefully measured
Cedar Rapids, IA 52401              and mercury were avoided in materials            and compared to the typical results of older
800.798.0227                        and products such as thermostats, light          facilities with traditional layouts.
                                    fixtures and bulbs and solder for pipe joints.
2834 Northgate Drive                This improved the health and safety of
Iowa City, IA 52245                                                                  Tracking of clinical errors and patient falls
                                    construction workers and building users by
800.798.3040                                                                         are expected to illustrate that the design
                                    reducing the toxins in the environment.
                                                                                     and operational attributes of this hospital do
                                                                                     decrease these occurrences and do create a
1601 48th Street, Ste 200
West Des Moines, IA 50266           Sustainable Operations Today                     safer environment. A LEAN study comparing
800.798.8104                                                                         a traditional acute care floor with a central
                                    Iowa Health-Des Moines continues to develop
                                    new and innovative sustainable design            nursing station with the decentralized model
2103 Eastland Drive                 initiatives to reduce the impact of their        used at this hospital is being considered.
Bloomington, IL 60515
                                    day-to-day operations on our environment.        It is anticipated that staff efficiency and
800.798.8992                                                                         improved medical outcomes will be proven
                                    Collection facilities and policies encourage
                                    ongoing recycling of cans, bottles, cardboard    by this study. The outcome of these studies
3025 Highland Parkway, Ste 140      and paper. Food service has instituted a         is expected to inform future projects
Downers Grove, IL 60515                                                              throughout all facilities of this health system.
888.282.8039                        value waste program for food and nutrition.
                                    Eco-friendly plates, cups, utensils are used
                                    for dining services. Eco-friendly food storage   For More Information, Contact:
1701 River Drive, Ste 200
                                    containers are used in the kitchen, and
Moline, IL 61265                                                                                     Gary Van Dyke, LEED AP,
800.798.7650                        cooking/frying oils are recycled.
                                                                                                     is a healthcare designer
                                                                                                     for Shive-Hattery in West
4 West Drive, Ste 110               A salvage committee reviews the reuse of old                     Des Moines, Iowa. He
Chesterfield, MO 63017
                                    equipment. Surgical instruments and supplies                     served on the architectural
                                    are reprocessed or remanufactured. Reusable                      design team for the
                                    sharps containers are throughout the                             Methodist West Hospital.
s h ive - hat ter m            hospital. Florescent lamps, PCBs, electronics                    Contact: 800.798.8104 or
                                    and motors are recycled as well.       

                                    A campus wide ban on the use of tobacco                              Sherrilyn Stewart is
                                    products is enforced to promote a clean                              the Director of Design,
                                    and healthy environment in and around the                            Construction and Property
                                    building.                                                            Management for Iowa
                                                                                                         Health-Des Moines.
                                                                                                         Contact: 515.241.6212


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