Posts tagged with "LEED Gold":
An undulating aluminum panels rainscreen features around 9000 individual triangular panels, with 1000 high performance glass units.York University is a research-oriented public university in Toronto known for its arts, humanities & business programs. Nestled into the landscape on the edge of campus and overlooking a pond and arboretum, the Bergeron Center for Engineering Excellence is a 169,000 sq. ft., five-story LEED Gold facility housing classrooms, laboratory spaces, offices, and flexible informal learning and social spaces. Designed with the idea of a scaleless, dynamically changing cloud in mind, ZAS Architects + Interiors designed an ovoid-shaped building wrapped in a custom triangulated aluminum composite panel (ACP) cladding with structural silicone glazed (SSG) type windows. Costas Catsaros, Associate at ZAS, says the building will help to establish the emerging school by establishing a dynamic, ever-changing identity. There are two main generators of the Bergeron Centre’s cloud geometry: the building floor plate shape, and various forces manipulating the topology of the cladding surface. The floor plan is designed around 8 curves: a primary curve establishing north, south, east, and west orientations, along with a radius at each corner. Center points of the radii provide reference points for additional sets of geometry and field surveying benchmarks during the construction phase. The resulting ovoid-shaped floor plate, challenged the architects with developing an effective way to wrap the building. They focused on the work of Sir Roger Penrose, a mathematical physicist, mathematician and philosopher of science, whose tessellation patterns inspired an efficient way to generate repetitive patterns using a limited number of shapes. Through an intensive design process, the architects were able to clad 85% of the building using only three triangular shapes, scaled based on industry standard limitations for ACP panel sizes. The other panels were cropped by undulating edge geometry along the soffit and parapet edge curves of the surface. To achieve a dynamic effect, the panels inflect at up to 2” in depth, creating an individualized normal vector per panel. By canting the triangulated panels, subtle variation in color and reflectivity is achieved. Additionally, the architects scattered color-changing dichroic paneling throughout a field of reflective anodized panels, while dark colored panels casually cluster around window openings to blur the perceptual edge between solid and void. The building substrate framing is designed with the complex geometry of the rainscreen system in mind. A modular pre-framed structural unit was developed through a highly coordinated BIM information exchange process which resulted in custom support collar detailing at window openings, a unique two-piece girt system to provide concealed attachment for the ACP panels, and a method to allow for up to 1” of tolerance within the wall assembly through reveal gaps in the cladding. During this process, a design model was passed along from the architects to the structural engineer, who developed a construction model in a 3D CAD Design Software. This model was utilized to generate shop drawings, and shared with the steel fabricator, who shared the model with Flynn, a building envelope consultant, to coordinate the rainscreen panelization with respect to window openings in the building envelope. Catsaros says this was a very successful leverage of BIM technology: "It was a very intense process, but worth it in the end. Laing O’Rourke [general contractor] was able to close in the building a lot faster than if this had been done in a conventional process." Closing in the building early in the construction process was critical on this job, which required an opening date in time for the beginning of the school year in September. This required a peak in construction activity during the middle of winter, which would have presented difficulty on an open job site. The off site production and rapid assembly of the building envelope established a warm dry environment for the installation of sophisticated (and costly) laboratory equipment and building systems, none of which would have been possible with the threat of cold weather and moisture an open building invites.
The two 10-story towers are clad in white metal and clear glass, carefully balanced to reduce solar heat gain and provide a sense of lightness.Samsung’s new North American headquarters, designed by NBBJ, is a landmark facility in Silicon Valley embracing new urban guidelines developed by San Jose officials to prioritize active streets and environmental sensitivity. The project creates a sense of lightness with a transparent, environmentally responsible facade, and has been used as a case study project within NBBJ’s international network of offices. The compound is composed of two ten-story towers designed around an interior courtyard and floating open-air gardens. The architects adopted the diagram of a semiconductor as inspiration for the building, defined by an energized void space between separated slabs. Connecting stairs located at every two floors establish a centralized “3-D Main Street” linked by pocket parks. The ground floor extends an open public program into the adjacent city, providing a connection to the tech community. Despite working in a ten-story office tower, Samsung employees are never farther than one story from outdoor space. Utilizing a courtyard typology to maximize daylight and natural ventilation into a flexible open office layout, the project anticipates LEED Gold certification. The facade system for the facility plays a significant role in the project, achieving three key functions: encouraging social interaction, communicating a brand identity, and sensitively responding to the environment by incorporating renewable energy and managing solar conditions. Rather than designing an all-glass facade, NBBJ developed a white metal, glass, and terracotta exterior with an undulating gradient of punched window openings responsive to environmental criteria. For example, the building orientation is aligned to San Jose’s city grid, which is rotated off a north-south axis, causing direct heat gain to be managed across multiple facades. This assisted with solar heat gain concerns and established an aesthetic identity for Samsung’s headquarters. The interior facade is noticeably more transparent, utilizing a floor to ceiling glazing system. Collaborating with ARUP, NBBJ designed the facade to be a shop-built assembly—it was craned into place, ensuring a high-quality, controlled assembly process. The architects teamed with Benson, who fabricated the facade panels. The building is formally very simple, but becomes activated by people, fostering a collaborative environment. This is a “generative” building, designed for flexibility to allow for as many new ideas as possible. A collaborative, interactive spirit drove the project’s design from the start. The outcome is an open, tolerant, flexible building that enables possibilities and drives innovation.
At six stories high, this is the tallest living Biofilter wall in North America.Neatly contained behind a glass and steel structure is Diamond Schmitt Architects and Nedlaw Living Walls’ latest creation: a 1,370 s.f. vertical living wall assembly, located within a prominent skylit atrium in Vanier Hall, a Social Sciences building on the University of Ottawa’s campus. What appears as a vertical leafy green decorative wall is actually a sophisticated system fully integrated into the building’s air handling system. Contaminated indoor air is drawn through the filtration mechanism—made of plant and root media—where microorganisms consume airborne pollutants as food, breaking them down into water and carbon dioxide. The biofilter effectively cleanses over 13,800 CFM of air. Birgit Siber, Principal at Diamond Schmitt Architects, has incorporated over a dozen large living wall installations in her projects: “One of the things I find so elegant about the initiative of using plants on a large scale within buildings is that it contributes to the indoor environment on so many fronts.” Not only does the wall cleanse dust and odor from the indoor air, but in the atrium, the living wall frames the school’s collaborative social space and functions as an acoustical attenuation device. The living wall can be seen prominently from the exterior, contributing to the school’s identity. The cost of the assembly was determined to be “cost neutral” by the University’s administration, which is seeking a LEED Gold Certification for the building. Biofiltration is a product of research developed at the University of Guelph’s Controlled Environment System Research Facility (1.5 hours west of Toronto), and resulted from an investigation done for the International Space Agency to purify air at a proposed lunar base. Siber teamed with researcher Dr. Alan Darlington, founder of Nedlaw Living Walls, to develop an installation to showcase his research 12 years ago. From this early collaboration between Siber and Darlington, a “no waste” spirit has driven the development of the system, which continues to evolve through seven built versions. Darlington attributes these developments to an underlying desire to improve building performance, “We’ve done a lot of work to streamline and make this as efficient as possible without losing the aesthetics of this system.” The wall at Vanier Hall is loaded with creative features to close the energy “loop holes” found in traditional building systems. Storm water runoff and HVAC condensation are captured and reused for watering the hydroponic plants, while a sophisticated daylight-integral lighting system limits electricity usage used for plant growth to adjust lighting conditions on the plants. The biofiltration living wall system is scalable, having been deployed by Diamond Schmitt Architects and Nedlaw Living Walls in city halls, offices, and universities. It has been developed in coordination with both new construction and renovation projects. Darlington notes that under ideal conditions, roughly 10 square feet of biofilters can generate enough “virtual” outside air for 5-10 people. Diamond Schmitt Architects currently have two US projects under construction – a mixed use tower in Buffalo, and a stacked sequence of four two-story living walls in an academic building at the University of Michigan in Ann Arbor. Architect Birgit Siber of Diamond Schmitt Architects will be speaking at the upcoming Cities Alive conference in New York City on October 6th on a panel discussion from 10:30am-noon entitled, "Living Walls Biofilters: Design, Operating Costs and Return on Investment."