Posted: November 01, 2011
Colorado Sustainable Design Awards: Civic
Sangre de Cristo
Architect: klipp in association with Hutton Architecture Studio P.C.
General contractor/builder: G.E. Johnson Construction Co.
Owner: Sangre de Cristo School District
Design planning for the Sangre de Cristo PK-12 School began with a community gathering in a small converted church in Mosca, Colo. The surrounding mountains, agricultural setting and "seemingly endless sunshine" began to inform the design, the architects said in their entry. "From the beginning, it was important to reflect the culture of the area in the new school. A single site was carefully selected to provide equal access from the three communities served and to replace existing school and bus maintenance buildings, which operated in separate locations. This consolidation created a central gathering place and considerably reduced the demand on transportation."
›› An east-west orientation optimizes north and south elevations for solar control.
›› Daylighting through the use of tubular devices and windows take advantage of the sunshine. Most classrooms can function during the day without electric lighting.
›› The school eliminated the need for a traditional sewer line by having its own treatment tank and sand leach field.
›› Concrete, concrete masonry, gypsum board and beetle-kill pine came from within Colorado and were installed by local workers.
Casey Middle School
Architect: RB+B Architects
General contractor/builder: Saunders Construction
Owner: Boulder Valley School District
The most sustainable aspect of the Casey Middle School project is the reuse of an existing site. The original building could not be salvaged without great expense, but two of the historic walls were saved, preserving some of the historic architectural elements. To preserve open space on the 8.4-acre site, half of the parking is located in an underground structure.
›› Materials from the original building, such as gym flooring, were repurposed and integrated into the new design.
›› About 84 percent of the construction waste was diverted from the landfill.
›› North-facing classrooms coupled with tubular devices maximize daylight and reduce the need for electric lights.
›› A "green" roof minimizes stormwater roof runoff, and the use of artificial turf will save up to 1.3 million gallons of irrigation water per year.
›› A ground source heat exchange system is used for heating and cooling the building.
›› A portion of the building's energy needs comes from a 26.8 kilowatt photovoltaic system. The cafeteria uses a food pulper instead of a garbage disposer to compost kitchen food waste.
Kent Denver School dining hall
Architect: Semple Brown Design PC
General contractor/builder: CMC Group Inc.
Owner: Kent Denver School
The private Kent Denver School wanted its dining hall to illustrate the cycle of food culture, from harvest to waste management and comply with design guidelines for Platinum LEED (Leadership in Energy and Environmental Design). Retaining the existing building and having to work within a six-month construction schedule and limited budget determined the building systems and the materials. The completed building included an 8,000-square-foot extension, extensive renovation to the existing building and 12,000 square feet of new construction.
›› Extended overhangs on the south and west side of the building encourage dining on the plaza and reduce heat gain.
›› About 97 percent of the regularly occupied spaces have exterior views and operable windows.
›› After feeding 700 lunches, the building generates less than one trash bag of waste.
›› Building innovation and operations resulted in 44 percent total energy savings, 45 percent reduced water consumption and 64 percent reduction of all campus waste.
›› A 27 kilowatt photovoltaic rooftop solar array helps power the building.
›› A 14-by-18-foot vertical garden features 576 plants, including thyme, basil, parsley and rosemary, which are harvested for use in meal preparation.