Researchers at the U.S. Department of Energy’s Oak Ridge National Laboratory have developed a system that uses a camera to detect air leakage from buildings in real time.
This system could provide more accurate readings much faster than current diagnostic tools. Through a sequence of images, the system visualizes leaking air that is a different temperature than the surrounding air.
Researchers crafted algorithms that measure velocity and flow rate for real-time leak visualization. The system has been used successfully to detect air leakage through brick, vinyl siding, and concrete masonry blocks under sunny and cloudy conditions.
The research team is working to measure the amount of leakage occurring. This will allow building owners to better prioritize areas that most need sealing.
Related Stories
| May 25, 2011
Smithsonian building $45 million green lab
Thanks to a $45 million federal appropriation to the Smithsonian Institution, the Smithsonian Environmental Research Center in Edgewater, Md., has broken ground on what is expected to be one of the most energy-efficient laboratories in the country. The 69,000-sf lab is targeting LEED Gold and is expected to use 37% less energy and emit 37% less carbon dioxide than a similar building.
| May 20, 2011
Chicago leads the nation in LEED-certified square footage
The U.S. Green Building Council reports that Chicago has the highest number of square feet of LEED-certified green building projects nationally with 71 million square feet.
| May 18, 2011
Eco-friendly San Antonio school combines history and sustainability
The 113,000-sf Rolling Meadows Elementary School in San Antonio is the Judson Independent School District’s first sustainable facility, with green features such as vented roofs for rainwater collection and regionally sourced materials.
| May 16, 2011
USGBC and AIA unveil report for greening K-12 schools
The U.S. Green Building Council and the American Institute of Architects unveiled "Local Leaders in Sustainability: A Special Report from Sundance," which outlines a five-point national action plan that mayors and local leaders can use as a framework to develop and implement green schools initiatives.
| May 16, 2011
Virtual tour: See U.S. Green Building Council’s new LEED Platinum HQ—and earn CE credits
A virtual tour of the U.S. Green Building Council's LEED Platinum HQ is available. The tour features embedded videos, audio podcasts, and information on building materials and products used throughout the space. By taking the virtual tour, professionals can earn GBCI Continuing Education hours for the LEED AP with specialty and LEED Green Associate credentials.
| May 16, 2011
Seattle unveils program to boost building efficiency
Seattle launched a new program that will help commercial property owners and managers assess and improve building energy efficiency. Under the program, all commercial and multifamily buildings larger than 10,000 sq. ft. will be measured for their energy performance using the EPA’s ENERGY STAR Portfolio Manager.
| May 10, 2011
Cascadia Green Building Council report urges net-zero water systems for multifamily and commercial buildings
A new report from the Cascadia Green Building Council offers best management practices for designing safe, efficient, and effective net-zero water systems for the multifamily, commercial, single-family, and neighborhood market segments.
| May 10, 2011
Greenest buildings: K-12 and commercial markets
Can you name the nation’s greenest K-12 school? How about the greenest commercial building? If you drew a blank, don’t worry because our friends at EarthTechling have all the information on those two projects. Check out the Hawai’i Preparatory Academy’s Energy Lab on the Big Island and Cascadia Green Building Council’s new Seattle headquarters.
| May 10, 2011
Solar installations on multifamily rooftops aid social change
The Los Angeles Business Council's study on the feasibility of installing solar panels on the city’s multifamily buildings shows there's tremendous rooftop capacity, and that a significant portion of that rooftop capacity comes from buildings in economically depressed neighborhoods. Solar installations could therefore be used to create jobs, lower utility costs, and improve conditions for residents in these neighborhood.
| May 3, 2011
More jurisdictions adopting International Green Construction Code
More jurisdictions are utilizing the new International Green Construction Code (IGCC) as a tool to address sustainable construction for new and existing buildings. Fort Collins, Colo., and Kayenta Township, Ariz., are the most recent in a series of local and state governments that have adopted the IGCC,
