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Sustainable Architecture: On the Boards:
Ardmore Elementary School
, Bellevue School District, Bellevue, Washington: Ardmore Elementary School is a 69,000-square-foot replacement school. The proposed school is cut into the hillside with six classroom pods on two stories wrapped around a center two-story library space. In order to achieve a total annual energy use that is more than 30% below that of a typical energy-code-compliant building, four integrated strategies are employed. 1) The building massing is highly compact and the back of the lower floor is buried in the sloping site. This scheme reduces the exterior wall area by over 40% when compared to other schemes. 2) The building employs individual heat pumps to provide heating and cooling. These are connected to a ground-source well field, eliminating the need for either a conventional boiler or cooling tower. This system provides the users with individual control for each space as well as overall ease of maintenance. In addition, provisions have been incorporated in the building infra-structure for the future roof-top installation of photovoltaic panels and/or tube collectors for domestic hot water preheat. 3) The exterior wall performance is greatly improved by the addition of rigid insulation over the exterior sheathing. This increases the insulation in the wall to R-25 while significantly reducing the thermal bridging normally associated with metal-stud framed walls. 4) Effective daylighting strategies and lighting controls combine to reduce direct energy usage from electric lamps as well as the heat gain associated with these lamps.
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On the Boards
Results:
Higher Education
K-12 Schools
Healthcare
Residential | Continuing Care Communities
Commercial | Hospitality
Civic | Public
Recreation | Community
Restoration | Preservation
On the Boards
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