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
| Mar 14, 2012
Hyatt joins Thornton Tomasetti as VP in Chicago
A forensic specialist, Hyatt has more than 10 years of experience performing investigations of structural failures throughout the U.S.
| Mar 14, 2012
Tsoi/Kobus and Centerbrook to design Jackson Laboratory facility in Farmington, Conn.
Building will house research into personalized, gene-based cancer screening and treatment.
| Mar 13, 2012
China's high-speed building boom
A 30-story hotel in Changsha went up in two weeks. Some question the safety in that, but the builder defends its methods.
| Mar 13, 2012
Commercial glazer Harmon expanding into Texas
Company expanding into the Texas market with a new office in Dallas and a satellite facility in Austin.
| Mar 13, 2012
Worker office space to drop below 100-sf in five years
The average for all companies for square feet per worker in 2017 will be 151 sf, compared to 176 sf, and 225 sf in 2010.
| Mar 12, 2012
Improving the performance of existing commercial buildings: the chemistry of sustainable construction
Retrofitting our existing commercial buildings is one of the key steps to overcoming the economic and environmental challenges we face.
| Mar 9, 2012
2012 Giants 300 survey due Friday, April 13
See how your firm ranks among the AEC industry leaders.
| Mar 7, 2012
Firestone iPad app offers touch technology
Free app provides a preview of Firestone’s Roots to Rooftop Building Envelope Solution with an overview of all the products from ground and stormwater management solutions, to complete wall panel and commercial roofing system applications.
