For the past three decades, the Energy Studies in Buildings Laboratory (ESBL) at the University of Oregon has been focusing on how to reduce a building’s energy load while bringing more light into the interior.
This past April, ESBL and local architecture firm SRG Partnership took another step toward that goal with the opening of a new library at Portland Community College. The 40,000-sf library is equipped with four “cones of light,” spherical reflectors made from extruded aluminum that distribute daylight from the library’s third floor to illuminate the second.
Kent Duffy, an SRG Principal, says that the cones, which spread from five feet in diameter at the top to nine feet at the bottom, were preferable to a daylight shaft from the roof, which would have obstructed the third floor.
GZ (Charlie) Brown, ESBL’s Director and Professor of Architecture at the college, says the library is cooled by a passive energy system that obviates the need for air-conditioning. The windows on the second floor are left open at night to cool the building’s mass. During the day, the windows are closed to allow the building mass to cool the interior. The cones help circulate the cool air.
Duffy and Brown say it took some doing to get the college to sign on to the cones of light, which were only included midway through construction. “Everyone is reluctant to be the first to try something new,” says Brown.
Also on the library Building Team: PAE (mechanical engineer), Catena (SE), Keylight + Shallow (lighting), O’Neill/Walsh Community Builders (CM), and Inline Commercial Construction (GC).
Read about more innovations from BD+C's 2014 Great Solutions Report.
Related Stories
| Oct 30, 2013
15 stellar historic preservation, adaptive reuse, and renovation projects
The winners of the 2013 Reconstruction Awards showcase the best work of distinguished Building Teams, encompassing historic preservation, adaptive reuse, and renovations and additions.
| Oct 30, 2013
11 hot BIM/VDC topics for 2013
If you like to geek out on building information modeling and virtual design and construction, you should enjoy this overview of the top BIM/VDC topics.
| Oct 29, 2013
Increased backlogs, margins lead to renewed optimism in global construction
After prolonged economic uncertainty, a majority of executives in the global engineering and construction sector have fresh confidence in the growth prospects for the industry, according to KPMG International's 2013 Global Construction Survey. A general increase in backlogs and margins is giving cause for optimism across the industry, with further growth anticipated.
| Oct 29, 2013
BIG opens subterranean Danish National Maritime Museum [slideshow]
BIG (Bjarke Ingels Group) has completed the Danish National Maritime Museum in Helsingør. By marrying the crucial historic elements with an innovative concept of galleries and way-finding, BIG’s renovation scheme reflects Denmark's historical and contemporary role as one of the world's leading maritime nations.
| Oct 28, 2013
Urban growth doesn’t have to destroy nature—it can work with it
Our collective desire to live in cities has never been stronger. According to the World Health Organization, 60% of the world’s population will live in a city by 2030. As urban populations swell, what people demand from their cities is evolving.
| Oct 28, 2013
Metal roofs are topping more urban dwellings
Given their durability and ease of use, metal roofs have been a common feature on rural houses for decades. Now they’re becoming an increasingly popular choice on urban dwellings as well.
| Oct 25, 2013
Hoffmann Architects announces launch of U.S. Capitol Dome restoration
The Architect of the Capitol will undertake comprehensive restoration of the 150-year-old cast iron Dome, which has not undergone a complete restoration since 1959-1960.
| Oct 23, 2013
AIA: Crowd-funding shows promise for financing real estate projects
The American Institute of Architects issued a statement on the SEC's recent 5-0 vote to propose rules aimed at letting startups tap large numbers of ordinary investors for small amounts of capital.
| Oct 23, 2013
Gehry, Foster join Battersea Power Station redevelopment
Norman Foster and Frank Gehry have been selected to design a retail section within the £8 billion redevelopment of Battersea Power Station in London.
| Oct 23, 2013
Some lesser-known benefits of metal buildings
While the durability of metal as a construction material is widely recognized, some of its other advantages are less commonly acknowledged and appreciated.
