News and events related to the principals of sustainability and leadership through design.
Thursday, July 28, 2011
Rethinking urban design could save energy, reduce congestion
Such squares give residents the impression of community, allow them to mingle and experience common culture. For the past 70 years, however, that town center has been shoved aside and is experienced undamaged only in communities that have remained relatively intact and development free. Some in New England come to mind.
Now that's beginning to change as designers embrace concepts more familiar to those of the past.
Most cities, Fresno, Calif. especially, have seen their historic town centers marginalized by sprawl and pockets of massive outward-bound commercial construction. In Fresno, the city moved north. Some of its deserted streets in downtown would make great post-apocalyptic movie sets.
Seattle and San Francisco found ways to beat the trend, focusing inward while still experiencing an explosion of suburbia. But their successes are overshadowed by a majority of U.S. cities and towns, whose residents learned to accept longer commutes, parking battles and frustrations that come with congestion.
Michael Freedman, urban planner and founding partner at San Francisco-based Freedman, Tung + Sasaki, spoke of such sprawl and its beginnings at the Smart Valley Places kick-off convention at the Radisson Hotel in Fresno. Then he tore off the veil. Smart Valley Places is a partnership of cities, organizations and regional groups to promote sustainable development in the San Joaquin Valley.
"The market has shifted," Freedman says.
Young people increasingly are gravitating to urban environments, settings made popular on sit-coms like "Seinfeld," "Friends" and "How I Met Your Mother." They don't want the cookie-cutter neighborhood, which almost served as the evil villain in "Edward Scissorhands."
Somehow, Freedman says, developers missed this shift in demand that started in the 1990s, continuing to plunk subdivision after subdivision ever farther from city centers and work places, forcing commuters to endure longer drives, use more energy and spend more money.
Reversing that design mentality would save energy, reduce commutes and cost less. Energy savings alone would be a huge boon. Fewer vehicle miles traveled means huge reductions to greenhouse gas and emissions production.
Freedman gives a history lesson in community design in his presentation, explaining that our current system for designing cities arose from mechanization, industrialization and the assembly-line mentality of the early 20th Century, when Henry Ford pioneered profits by separating tasks and creating worker specialties.
The idea to separate housing, recreation, work and transport caught global fire after the appearance the Athens Charter, a treatise on urban planning by Swiss architect Le Corbusier. It was based on ideas reached by the Fourth Congress of the International Congress of Modern Architects, which took place in 1932 "mostly aboard a passenger boat which steamed from Marseilles, France, to Athens, Greece, and back again," according to clio-online.
"We embraced this," Freedman says. "This was cool. This was modern."
Subdivisions were separated by incomes. "We had business parks," he says. "We had shopping centers, separated by function with miles and miles of pavement ... with miles and miles of utilities."
The current system has fallen apart. Freedman cites Emerging Trends in Real Estate by Price WaterhouseCoopers, which says, "Homeowners slowly will accept that they can live comfortably and more affordably in smaller houses or apartments and gain economies from driving less."
The annual report also says infill areas, or vacant lots, and cities with active neighborhoods and "urbanizing suburban nodes" will become more desirable among aging, baby boomers and their children. "At the same time, fringe suburban subdivisions — long car rides from work, shopping, and recreation amenities — lose some appeal."
Innovation, Freedman says, is the answer and new design must incorporate cluster and density, synergy and mix and public places. Of course, he says, that's exactly the opposite of most existing zoning regulations. "It's a time of tremendous opportunity but also tremendous anxiety," he says.
Photo: "Back to the Future" cake by snoboogie on Flickr.
Monday, May 2, 2011
245 buildings vie for title of nation's most energy efficient
May the best building win.
The competition, dubbed Battle of the Buildings, is staged by the U.S. Environmental Protection Agency's Energy Star program. Teams from 245 buildings will install energy efficient lighting, heating and cooling; adopt intensive building management systems that closely monitor and adjust energy use according to occupancy and other factors; and modify behaviors and practices that could unnecessarily cost kilowatt hours.
Of course, there are other measures such as cool roofs, insulation, windows and weatherization upgrades that can result in big savings, too.
EPA Administrator Lisa P. Jackson said, “We’re harnessing our nation's innovative capacity to save money on electric bills, create a cleaner environment and protect the health of American families.”
A winner will be named in November.
This year's competition is far greater than the inaugural event last year, in which teams from 14 buildings saved $950,000 and reduced greenhouse gas emissions amounting to the yearly electricity use of about 600 homes.
Last year's winner was Morrison Residence Hall on the University of North Carolina campus in Chapel Hill, N.C. The 10-story, 200,000-square-foot dormitory was built in 1965 and achieved a 35.7 percent reduction on its annual energy bill for a $250,000 savings.
The EPA says educating the public to the benefits of reducing energy use in the 5 million buildings in which people in this country "work, play and learn" is important because the sector consumes about 20 percent of the nation’s energy use. It also produces a similar percentage of the nation's greenhouse gas emissions and forces Americans to fork over more than $100 billion a year.
Those interested can follow along with the contestants to see what their strategies are and what they end up doing to reduce energy loads. The variety of the buildings this year is pretty interesting. Buildings range from the Experience Music Project Science Fiction Museum in Seattle with perhaps the highest energy use intensity rating, or EUI, in the group with 536.9 to the offices of Norandex, a building supplier, in Rochester, N.Y. with a rating of 47.5. The rating is derived by taking energy use and dividing by square footage. The higher the number, the higher the energy use.
Other buildings I found interesting were the Marriott Fullerton Hotel with an EUI of 153.6, the Helmsley Building at 230 Park Ave. in N.Y. with an EUI of 228.2, the Caterpillar AC Building in Mossville, Ill. with an EUI of 282.2 and the 450 Sutter Building in San Francisco with an EUI of 178.9.
Here's to extreme energy savings.
Photo: Experience Music Project building in Seattle under Space Needle.
Thursday, April 21, 2011
LEED Professional Project Experience
USGBC Central CA Chapter is partnering with GreenStep and Green-Buildings.com on the LEED® Professional Project Experience Program, which provides LEED AP exam candidates with an opportunity to actively work on a LEED registered project, thus qualifying participants to take the LEED AP exam while gaining real-world, hands-on experience.
OBJECTIVES - Participants will: perform LEED credit calculations, evaluate credit costs, troubleshoot potential setbacks, review documentation for compliance, review Credit Interpretation Requests, and complete LEED Templates.
AUDIENCE - This course is intended for LEED AP candidates and Green Associates seeking to earn the LEED AP credential as well as Building Professionals who have some level of familiarity with the LEED Rating System who are looking to gain a thorough understanding of how to manage the LEED documentation process.
COST
MEMBERS $360
NON-MEMBERS $400
Members: Email info@usgbccc.org to receive the discount code!
Register for the Project Experience Program
This program is limited In size. Once seats are filled, candidates wishing to participate may contact Green-Buildings.com to be added to the list for future projects.
Monday, April 18, 2011
Taylor Teter Partnership Becomes GOLD Sponsor
Many thanks to Taylor Teter Partnership, LLP and Loren Aiton for their joint sponsorship of $2,500! This makes the first GOLD LEVEL SPONSORSHIP for the year! The Central California chapter relies on the support of like-minded individuals with a shared vision of creating a built environment based in sustainability and awareness, and thanks Loren and the Partners of TTP for their generous support.
If you are interested in supporting the efforts our chapter please visit our Valued Sponsor Web page to learn more or make an immediate gift here. Your tax-deductible gift to the chapter will help us to continue to promote and advance healthy, sustainable, socially responsible, and economically viable environments through collaboration, diversity, education, networking, and environmental stewardship. Your sponsorship will allow us to provide first-rate educational programs and a full range of valuable services to chapter members and the communities we serve.
Again, our thanks to TTP for vital and generous support. It is because of YOU that we do succeed!
Monday, April 4, 2011
Go Green Expo | April 15-17
USGBC Members receive a 33% discount when registering for the upcoming Go Green Expo event in Los Angeles. Use promo code USGBC for $5 off (normally $15).
Go Green Expo
April 15-17, 2011
Los Angeles Convention Center - South Hall G
1201 South Figueroa Street, Los Angeles, CA 90015
Go Green Expo is one of the largest eco-friendly showcases in Los Angeles with hundreds of exhibits for eco-minded consumers & businesses. Learn from keynote presentations and panels from environmental leaders such as Captain Paul Watson of Whale Wars, Ed Begley Jr., Eric Cory Freed, Mariel Hemingway & dozens of others! See the latest eco-friendly options for the home & office, green health & beauty, pet and baby products, enjoy an eco-film screening and much more!
The 2010 Go Green Expo in LA showcased more than 300 exhibits featuring the latest in eco-friendly products and services. More than 10,000 Los Angeles residents and over 250 media outlets were in attendance – GoGreenExpo.com received more than 4,000,000 hits. This is an event you don’t want to miss!
Details & Tickets: http://www.GoGreenExpo.com
Purchase discounted tickets online in advance.
Use promo code: USGBC for $5 off (normally $15)
Los Angeles Convention Center - South Hall G
1201 South Figueroa Street
Los Angeles, CA 90015
Trade Only Day (free with proper business ID)
Friday, April 15, 2011 • 10am - 5pm
Open to Public
Saturday, April 16, 2011 • 10am - 6pm
Sunday, April 17, 2011 • 10am - 5pm
Exhibiting
USGBC member companies receive a $250 discount on the standard booth price. Only a few spaces remain - if your company is interested in exhibiting please contact Bradford Rand: BRand@GoGreenExpo.com or 212.655.4505 ext. 223
Purchase discounted tickets online in advance.
Use promo code: USGBC for $5 off (normally $15)
Tuesday, March 29, 2011
Cool It With Concrete
By Paulette Salisbury, FCSI, CDT
How can the color of a pavement make it more sustainable? The answer lies in the materials chosen by design engineers and public works agencies. Long known for its durability and strength, concrete has withstood the test of time on millions of miles of highways and local streets and roads. Now another attribute of concrete pavements is emerging as a benefit to owners, engineers and citizens. Concrete’s light color improves light reflectivity and makes it a cooler material for pavements, roof tiles and building facades. Concrete has been recognized as a solution to the Heat Island Effect by the US Secretary of Energy, Dr. Steven Chu.
Urban areas are usually warmer than their rural surroundings, a phenomenon known as the “heat island effect.” Heat islands can affect communities by increasing summertime peak energy demand, air conditioning costs, air pollution and greenhouse gas emissions, heat-related illness and mortality, and water quality.
Portland cement concrete absorbs less energy from light so it stores less heat and thus has a cooler surface temperature than black pavements such as asphalt. Typical summertime pavement surface temperatures can range from 120-150 degrees. Dark pavements hold heat internally and re-release it at night. Hot pavements also heat stormwater and run-off that flows into local waterways decreasing the water quality and its ability to support plants, fish and wildlife.
In many U.S. cities, pavements represent the largest percentage of a community’s land cover, compared with roof and vegetated surfaces. As part of EPA’s Urban Heat Island Pilot Project Lawrence Berkeley National Laboratory is investigating the impact of utilizing light-colored paving materials including concrete to reduce temperatures and the green house gas (GHG) emissions associated with energy production.
While decision-makers generally choose paving materials based on the function they serve, many private and public owners are considering how the pavement can provide a dual role in reducing energy bills from excessive air conditioning as well as providing a smooth, stable long-lasting driving or parking surface. Studies show that parking lots typically make up a large portion of paved surfaces in urban areas and therefore most of the research has been done on them. Streets, roads and highways also have a significant impact on urban temperatures. Support is growing among public works agencies for using concrete overlays on asphalt roadways to improve the longevity of the pavement and increase reflectivity thus “cooling” the environment. Recent “thermographic” images show the ambient temperature an average of 15 to 20 degrees cooler on concrete surfaces than asphalt pavements.
The US EPA’s Cool Pavements Compendium indicates that concrete is one of the most readily available solutions for the heat island effect. They also explain that concrete’s high albedo or solar reflectance is 40% compared to black asphalt at 5%. Concrete’s albedo can be increased to 70% by using slag or white cement. (http://www.epa.gov/heatisld/resources/pdf/CoolPavesCompendium.pdf ).
Even when a concrete pavement is worn and dirty its solar reflectance is high (about 25%) while asphalt may get lighter in color as the petroleum-based matrix wears away or ages reaching a maximum reflectance of 15-20%. At this point the asphalt usually needs to be resurfaced in a perpetual maintenance cycle making it black again diminishing its solar reflectance.
Concrete’s light reflectivity makes it an ideal material to enhance night time visibility. An AASHTO standard illustrates that illumination demands are roughly 40 to 50 percent lower for concrete pavements than for asphalt pavements. Another report comparing the two pavement types suggested a cost savings of as much as 31 percent in initial energy and maintenance costs for lighting concrete pavements. This finding is important for municipalities where utility costs associated with street illumination are often a large budgetary item.
In order to create sustainable communities architects, engineers, public works agencies and all government officials need to embrace all options. Concrete as a building and paving material is clearly one of the most promising solutions.
"If you look at all the buildings and if you make the roofs white and if you make the pavement more of a concrete type of color rather than a black and if you do that uniformly, that would be the equivalent of... reducing the carbon emissions due to all the cars in the world by 11 years – just taking them off the road for 11 years.”
Stephen Chu – Energy Secretary

