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
| Feb 2, 2012
Call for Entries: 2012 Building Team Awards. Deadline March 2, 2012
Winning projects will be featured in the May issue of BD+C.
| Feb 2, 2012
VLK Architects selected for new Cypress, Texas elementary school
The Bridgeland Elementary School will be a new prototype school for the District. Designed to meet the requirements of The Collaborative for High Performance Schools.
| Feb 2, 2012
Mortenson Construction to build 2.4 MW solar project in North Carolina
Located on a 12 acre site in the Sandhills region, the 2.4 megawatt (MW) system is expected to generate approximately 3.5 million kilowatt hours (kWhs) of clean electricity on an annual basis.
| Feb 2, 2012
Shawmut Design and Construction launches sports venues division
Expansion caps year of growth for Shawmut.
| Feb 2, 2012
Fire rated glazing helps historic university preserve its past
When the University embarked on its first major addition since the opening of Hutchins Hall in 1933, preserving the Collegiate Gothic-style architecture was of utmost importance.
| Feb 2, 2012
Delk joins Gilbane Building Co.
Delk to focus on healthcare construction programs and highly complex higher education facilities for Gilbane Building Company’s Southwest region.
| Feb 2, 2012
Next phase of construction begins on Scripps Prebys Cardiovascular Institute
$456 million Institute will be comprehensive heart center for 21st Century.
| Feb 1, 2012
Increase notched in construction jobs, but unemployment rate still at 16%
AGC officials said that construction employment likely benefited from unseasonably warm weather across much of the country that extended the building season.
| Feb 1, 2012
Replacement windows eliminate weak link in the building envelope
Replacement or retrofit can help keep energy costs from going out the window.
| Feb 1, 2012
‘Augmented reality’ comes to the job site
A new software tool derived from virtual reality is helping Building Teams use the power of BIM models more effectively.
