Teachers at Hood River Middle School established a curriculum that incorporated sustainable concepts and wanted to use the new building as a “teaching tool” that would illustrate sustainable ideas put into practice. Opsis began the process with an eco-charrette that included teachers, students, designers and engineers. Together they set goals for creating a building that was Net-Zero in both water and energy use. While constrained by a modest budget, they also wanted to use sustainable design techniques to help building users understand how the systems work and how their actions are a critical component in the building’s use of resources.
The goal of the design was to meet Net-Zero energy by producing as much energy as the building consumes. To reach this goal, energy savings and production measures include, geothermal heating, cooling using heat exchange with water from an adjacent stream, a radiant slab, and a 35 kilowatt solar panel system. The design team also performed daylighting studies to reach an ideal combination of translucent skylights, monitor windows, traditional windows and shading devices with deciduous vines on trellises. Part of the curriculum at the school now includes managing a resource budget and tracking the building’s performance through a “building dashboard”— a website that tracks energy use and production, water use and collection and weather conditions. In addition, the natural ventilation system is designed with a simple user interface to encourage students to think about how they interact with the built environment.
The building collects rainwater for use in toilets and for irrigation, as well as features low-flow and waterless plumbing fixtures. Stormwater treatment is done on-site using a bio-swale with native planting. Working collaboratively with the administration and students to set ambitious goals early on, the team was able to achieve a design that will truly help the community’s next generation move toward a more sustainable future.
The first design challenge was to build consensus on whether to expand and upgrade or replace the existing library building. After extensive assessments and a series of architect-led community workshops, the city embraced the creation of a new library, with a strong civic presence to draw in the neighborhood’s diverse populations.
Library amenities including book drop-off, bike parking, and places to meet or relax are composed within a large frame that reinforces the street front and creates a sheltering alcove leading to the front entrance. The façade’s large expanse of glass attracts passers-by to visit the reading room and the resources beyond.
Inside, the main space includes stacks, computer stations, seating areas, a children’s area and circulation desk. A multipurpose room, teen room, meeting areas, and staff and service areas round out the program.
An integrated and collaborative design process resulted in a building rigorously tuned to the geography and climate as well as to its public mission.
Remarkably, the project, located 6,600 feet above sea level, has no central heating or air conditioning. In winter, when nighttime temperatures regularly dip into the single digits, the building, clad in Colorado sandstone, zinc panels, and untreated juniper wood, stays warm inside largely because of its super-insulated envelope and passive solar features. In the summer, exterior venetian blinds cover the south-facing windows, controlling solar gain; at night, windows automatically open to draw in cooler air. A rooftop solar photovoltaic system generates enough electricity to meet the building’s energy needs—plus enough to charge four electric vehicles.
By segmenting the 245,000 SF program into five high-performance LEED Gold-rated buildings, the design team devised a plan for four landscaped courtyards linked by a series of portals and arcades, creating a cohesive pedestrian campus district that engages students and faculty in a unique environment. The five new academic buildings more than double the academic space at the campus and house four distinct but interrelated academic colleges, providing laboratory and classroom space for engineering, physics, anatomy/physiology, biology, chemistry, technology education, math education, and the performing arts.
The project entailed the demolition of approximately 15,000 square feet of inefficient single-story facility, the renovation of 14,000 square feet of existing two-story structure containing administrative support, labs, wellness programs, and the addition of a new 20,000-square-foot two-story wing containing campus health clinics. In terms of both energy and campus engagement, the design transformed the existing under performing health facility into an engaging and vibrant facility that is one of the best energy performers on campus as evidenced by ASU’s Campus Metabolism, an interactive web tool tracking real-time resource use. The LEED-Platinum building’s energy performance is 49% below ASHRAE 90.1-2007, exceeding the current target of the 2030 Challenge.
Nestled into the landscape, the River begins on a knoll and then flows down the long, gentle slope in a series of bends, forming pond-like spaces on its journey. Structurally, the building of glass, concrete, steel, and wood is in essence a single long roof, which seems to float some 10 to 14 feet above the surface of the ground as it twists and turns across the landscape. The walkways, courtyards, and glass-wrapped volumes that form beneath the roof are remarkably transparent and invite people to engage with the expansive natural surroundings.
EHDD’s design for this project was driven by a desire to provide a very low energy cooling system that achieved sustainability without sacrificing economy, comfort, worker efficiency, or beauty.
While lab buildings typically use four times the energy of most campus buildings, the Department of Global Ecology reduces gas emissions to an absolute minimum. A night sky cooling system sprays a thin film of water on the roof, which radiates heat to the cold, deep space sky, producing chilled water. This water is stored and circulated through the granite slab floor to cool the spaces. In addition, a “windcatcher” and misters cool the indoor/outdoor lobby, lowering the temperature of air cascading into the space.
To connect students to the site, the design was also conceived around the outdoor spaces as much as around the buildings themselves. The various program elements are wrapped around the “Step-Up Courtyard,” the emotional heart of the campus where graduation takes place, and which links the Lower, Middle and Upper Schools together. The design strengthens the indoor-outdoor connection using narrow buildings footprints with ample shaded glazing, transparency and views.
The project includes a new library and technology center, art studios, classrooms and student services offices in 23,094 square feet of new buildings and 10,646 square feet of renovations. Site work included creek restoration, a new playground and the courtyard.