Posts tagged with "brise soleils":
The expansion of the Teresian School—an historic, late 19th-century Barcelona school designed by Antoni Gaudí—raised a formidable architectural challenge: how to create a modern academic space without undermining or distracting from original masterwork. To meet this challenge, PICH Architects designed an extension that reflects the massing of adjacent buildings while protecting views and access to the historic building. The siting of the new building allowed for an overall restructuring of programmatic space within the existing facility to provide for expanded academic and extracurricular schedules and performances. The new facade showcases an innovative architectural "textile" product that is composed of ceramic panels integrated into a flexible stainless steel mesh or grid. This emerging construction technology offers variable color and compositional options in a lightweight, flexible assembly. Felipe Pich-Aguilera, owner of PICH Architects, saw this product as capable of creating a dialogue between Gaudí's original structural brick and terra-cotta ornamentation, and contemporary construction techniques. "The building had to speak about its time without turning its back on the very texture of the existing building, so we’ve opted for a woven ceramic facade—which makes a large lattice—toward the street and light and bright elements for the interior of the school. This double skin, which shades the interior thermally, allows freedom and flexibility in the distribution of windows and functionally necessary opaque elements." The system consists of salmon-colored ceramic pieces, which are cooked with biogas (clean fuel whose use in ceramics production reduces CO2 emissions by approximately 16,700 tons per year) and combined in a lattice grid through a metal mesh. The assembly of the facade, which has an area of over 3,200-square-feet, was accomplished within five days, substantially reducing construction time versus traditional, piece-by-piece application, and resulting in significant savings in costs. The product celebrates a versatility in the construction of large surfaces, providing high accuracy since the metal mesh allows joints between the pieces to always remain aligned. The facade is "hung" by fastening stainless steel anchors, which counter the effects of wind, to adjacent metallic meshes. The system is designed to absorb lateral forces from wind and earthquakes and has been detailed to incorporate "anti-fall" backup measures to ensure loose tiles have multiple degrees of attachment to the steel lattice grid. The new ceramic textile was based on the principles of textile architecture. It is a flexible and adaptable material that combines two very different components: steel and ceramic. Serving as a successful example of corporate and academic collaboration, the material was originally created by Vicente Sarrablo, Doctor of Architecture and Director of the Ceramics Department at the International University of Catalonia, and was later developed by leading companies in the Spanish construction industry, Piera Ecocerámica and Cerámica Malpesa. After popularity in European markets, the product has recently made it's U.S. debut at the AIA Convention earlier this year, and is being manufactured by Shildan under the name "Fabrik."
A total of 149 custom panels cover nearly 11,000 sq. ft. of the facade, providing a passive approach to daylighting, glare reduction, shading, and solar heat gain reduction.The Georgia BioScience Training Center is a signature building with a dual purpose: a high-tech facility supporting research critical to bio-manufacturing that brings identity to Georgia’s growing biosciences industry. The 40,305 sq. ft. building is sited approximately 45 miles due east of Atlanta in Social Circle, "Georgia's Greatest Little Town,” and houses laboratories, classrooms, meeting rooms, and large gathering spaces. The building is organized around a large elliptical courtyard lined with glass walls. “Building planning centered on the idea of a “10 minute marketing tour” as the state will tour thousands of future 'prospect' companies through the facility,” says Nathan Williamson, Associate Principal at Cooper Carry. Williamson says the exterior courtyard doubly serves as a breakout space for large meetings and events, while drawing daylight into the training spaces. “By centralizing this natural amenity and event space, all spaces are energized by daylight while vistas create an open, highly-collaborative environment. The result is a high performance design that evokes the sophistication of 21st century bio-manufacturing.” The most striking feature of the building envelope is a large angular metal mesh veil, suspended off the building by a steel frame. Williamson notes the versatility of the aesthetic properties of the material combined with the performance of the veil as a passive solar shading device brought a significant value to the project: "We infused stainless steel into the exterior design to capture the performance benefits of shading while expressing the connections of the system which enhance the client’s brand of a decidedly hi-tech facility. The mesh is expressed independently from the orthogonal main façade with facets and plane changes to provide a dynamic, crystalline aesthetic with ever changing shadows and reflections that suggest a sense of movement." The BioScience Center’s high precision metal facade assembly is a familiar aesthetic for the high-tech students and visitors of the facility. The metal mesh product, named “Lanier” after nearby Lake Lanier, was developed by Cambridge Architectural as a custom solution specific to this project which has become a showcase for the architectural metal company. "We always like to be involved early in the process of any project and work with the architect once the initial design has been established,” says Matt O’Connell, Director of Operations at Cambridge Architectural. “After initial review and discussions with Cooper Carry about their vision, we conducted 3-D modeling. But the computer only goes so far, so we went through multiple specifications and mock up processes, both small and full size, to provide the right mesh fabric for the job.” The rigid panels are fabricated as trapezoidal shapes to account for the faceted panels. When folded into place, the panels assume an orthogonal ribbon-like patterning. Cambridge developed the rigid mesh to allow for a one-directional bend. The product is suspended in tension off a rigid steel frame that allows the dimensions of the panel to be maximized with fewer intermediate supports. The result is a lightweight (1.28psf) panel with a maximum width of 10 feet, and a maximum length of 100 feet. A unique feature of Lanier is the ability to expand and contract the open area of the mesh, by removing fill wires as the pattern repeats. What results is a quality of lightness in the material - the ability to block direct sunlight while maintaining views from within the building. “We know that architects are seeking flexibility and looking for mesh choices that create a more stimulating visual appearance while providing options for varying degrees of light passage,” said Cambridge National Sales Manager David Zeitlin. “In the case of Lanier, they can even choose to expand the openness of the pattern for a single panel. We call this option Transition.” The material has been used for exterior facades, solar shading, parking garages, and interior screen walls.
University of Arkansas addition celebrates the future with a contemporary rewrite of Neoclassicism.As head of the architecture department and distinguished professor at the University of Arkansas Fay Jones School of Architecture, Marlon Blackwell was uniquely qualified to oversee the renovation and expansion of the school's home, Vol Walker Hall. To unite the school's landscape architecture, architecture, and interior design departments under one roof for the first time, Blackwell's eponymous firm designed a contemporary west wing to mirror the east bar on the existing Beaux-Arts style building, constructed in the 1930s as the university library. But the Steven L. Anderson Design Center—which tied for Building of the Year in AN's 2014 Best of Design Awards—is more than a container for 37,000 square feet of new studio, seminar, and office space. It is also a teaching tool, a lesson in the evolution of architectural technology writ in concrete, limestone, glass, steel, and zinc. "Our strategy was to create a counterweight to the existing building," explained Blackwell. Rather than a layered steel-frame construction, Marlon Blackwell Architect opted for a post-tensioned concrete structure to convey a sense of mass and volume. "We also wanted to demonstrate what you can do with new technology like post-tensioned concrete, such as introducing a cantilever and introducing a profile that has minimal columns in the spaces," he said. "All of that is a didactic tool for our students to contrast and compare with the load-bearing technology of the existing structure." The exterior of the Steven L. Anderson Design Center also reflects on changes to architectural practice during the last 80 years. "We really wanted to develop a strong profile of the building, in contrast to Vol Walker Hall," said Blackwell. He describes the effect as a figure-ground reversal: where in the older structure the mass of the building is the ground and the windows and ornament act as figure, in the new wing the mass is the figure and the fenestration the ground. To create what Blackwell terms a "condition of resonance" between the Design Center and Vol Walker Hall, the architects engaged Clarkson Consulting to develop an architectural concrete to match the color of a local Arkansas limestone no longer available. They echoed the Indiana limestone on the older wing with panels sourced from a quarry only 50 miles from the original. But instead of grouting the limestone cladding on the new wing, Blackwell chose a limestone rain screen system from Stone Panels. "That allows us to go much thinner but much larger," he said. "Again, we're using the same materials but showing how the advancement of technology allows for a different expression of architecture." The defining feature of the Design Center is the more than 200-foot-long glass and steel curtain wall on the western facade. Knowing that the western exposure would provide the only source of natural light for the new wing, the architects worked to balance the need for light against the threat of solar gain. To complement the existing building, they chose a fascia steel curtain wall custom-fabricated by local company L&L Metal Fabrication. With curtain wall consultants Heitmann & Associates, Blackwell developed a brise soleil comprising 3/4-inch by 18-inch frit glass fins, angled to filter sunlight into the Design Center's 43-foot-deep studios. "What we like about it, too, is that it's one big window," said Blackwell. "It allows it to feel as if we've cut a section right through the building. At night the entire facade becomes a beacon, allowing for a nice interface between the school of architecture and the rest of the community." Other details, including the monolithic concrete pours designed to lighten the Design Center's connection to the ground, and zinc cladding used on the top floor to sharpen the profile of the main body, continue the dialogue between the new structure and its Neoclassical neighbor. "There are a lot of little things that give a tautness to the expression of the new addition, and give it its own identity," said Blackwell. "But at the same time, one of the things we were faithful to was trying to analyze and uncover units of measure and proportion on the old building, and apply that to ours." Perhaps more importantly, the building works as a design school—and Blackwell would know. "There's certainly contrast on the outside," he said. "But there's an almost resonant seamlessness on the inside."
A high-performance facade weaves a diverse program into a single volume.The School of Law at the University of Baltimore was founded nearly nine decades ago, but for most of that time its classrooms, offices, library, and clinics were scattered among several downtown buildings. That changed last year, with the opening of the John and Frances Angelos Law Center. Designed by Behnisch Architekten with Ayers Saint Gross, the Angelos Law Center unites a diverse program within a single 12-story structure. Its checkerboard envelope, which won Best Facade in AN’s 2014 Best of Design Awards, weaves the building’s three principal components—a classroom and office wing, the library, and a central atrium—into a single volume. In addition, the facade positions the university on the cutting edge of sustainable design. Its integrated approach to energy efficiency has helped the Angelos Law Center win several green-building prizes, and set it on track to achieve LEED platinum status. Behnisch Architekten took a tripartite approach to the design of the facade. The architects wrapped the portion of the building dedicated to offices and classrooms with an aluminum plate and punched window system. “This is the kind of facade that works very well with the kinds of spaces behind it, because those tend to be a bit more regulated and modular in the way they are allocated,” said partner Matt Noblett. For the library, the uppermost of the building’s two L-shaped volumes, the designers chose a frit glass with a pattern they call a basket weave. “The library, from a program perspective, is kind of a big soup,” said Noblett. There are group study spaces, offices, and, of course, the stacks. “[W]e wanted to find a way in the facade to do [something] more neutral, less specific,” he explained. “The basket weave is less specific in how the articulation of the facade related to the program behind it.” The third segment of the facade, transparent glass enclosing the building’s atrium, draws the two other volumes together. The architects developed a unique sustainability strategy for each section of the building. For the office block, National Enclosure Company fabricated a unitized curtain system comprising the window surface, exterior blinds, and a glass rain screen. The Hunter Douglas Nysan blinds move up and down according to an automated program that operates the top one-third and bottom two-thirds of the windows separately. “It’s remarkable to look at the specific data, to see how much more of the year you’re able to maintain comfort without excessive amounts of air conditioning when you have an exterior sunshading system,” said Noblett, whose firm worked with Transsolar on the building’s climate engineering. Outside the blinds is a low-iron laminated glass rain screen mounted on aluminum brackets. While the architects initially designed the rain screen to protect the blinds, it also solved an architectural problem. “It had a tendency to reunify all of the facade into one building,” he explained. “The more you perforate, the less you read as one volume. By essentially shrink-wrapping [the offices and classrooms], you start to read it again as a [single] volume.” The library at the Angelos Law Center is faced with frit glass from Viracon. “We did a lot of study with the manufacturer” to determine the gradient pattern, said Noblett. “What we wanted it to read was as purely white as possible. We wanted the ceramic as close to the surface as possible.” The goal was to reduce solar gain to the bare minimum. “If you were designing the building and didn’t care how it looked, you would just build a solid wall,” said Noblett. “The idea to add frit to make the wall essentially solid, [but] from the interior of the library it still feels like it’s open.” Outside the atrium, Behnisch Architekten installed a fixed brise soleil by National Enclosure Company on the south and west sides. The north side they left uncovered. All of the Angelos Law Center’s windows are operable, which, while not unheard of, is still unusual in a non-residential setting. “It’s hard to argue with a building where you can get comfortable by opening windows versus sealing up and running the air,” said Noblett. Noblett describes designing a high-performance facade as “this game you’re constantly playing between how much light comes in and how much solar gain [results].” By that analogy, the Angelos Law Center is a check mark in Behnisch Architekten’s win column.