Continuing a trend of rapid growth, the

U.S. Green Building Council announced in early February that it had accepted its 4,000th member. USGBC membership—which is open only to companies and organizations, not to individuals—hit 2,000 in September of 2002 and 3,000 in May of 2003.

At the beginning of March 2004, the U.S. Green Building Council released a draft of the LEED

® for Existing Buildings (LEED-EB) Rating System for review by Council members during a 30-day comment period. LEED-EB is designed to certify the ongoing operations and maintenance of facilities, including upgrades to building systems. It is not... Read more

A recent design team solicitation from the Architect of the Capitol placed a whopping

25% of its selection criteria on the teams’ green design capabilities. “We believe this level of emphasis is a new high-water mark for the federal government,” said Terrel Emmons, FAIA, director of Planning and Programming. The project, being procured... Read more

™ vapor retarder, which changes permeability according to relative humidity, has been awarded an Innovative Housing Technology Award in the energy category from the NAHB Research Center and EH Publishing. CertainTeed is online at www.certainteed.com. See

EBN

Vol. 12, No. 11 for a review of MemBrain.

The

Hayward Corporation, which produces FSC-certified wood products and other green building materials (see

EBN

Vol. 9, No. 6 and

Vol. 10, No. 4), has achieved a LEED

® v2 Gold rating for its Hayward Building Systems plant in Santa Maria, California. The 55,000 ft

2 (5,100 m

2) facility... Read more

A new program is making it easier for Puget Sound residents to make their homes more efficient. Through a partnership with Efficiency Services Group (a division of Portland General Electric), HomeStreet Bank has started the

Mortgage Options for Resource Efficiency (MORE™) program. Participants in the program receive custom home energy... Read more

Please explain what makes “polyester yarn … impregnated with an acrylic-based material” fire resistant, as claimed in the article “PVC-Free Interior Shade Screening from Nysan” (

Vol. 12, No. 12). As far as we know, polyester and acrylics are both flammable.

Tim Burns, President

The Vinyl Institute

Arlington,... Read more

Civano, in southeast Tucson, Arizona, was named Best New Community in

Sunset Magazine’s annual Best Places to Live story. The 818-acre (330 ha), mixed-use community was designed around New Urbanist ideals, with a strong sense of community and place (see

EBN

Vol. 9, No. 7). The homes use 50% less energy... Read more

® landscape timbers, fencing, and pavers made from 100% post-consumer plastics, closed its doors in February. The Stamford, Connecticut company survived perennial capital shortages over its 15 years until an accident last April left owner Celeste Johnson unable to maintain sales streams, which plummeted more... Read more

The

Home Builders Association of Metro Denver, which recently trademarked the name Built Green

® for its residential green building program (the largest in the nation), has issued a cease and desist request against Vermont’s

Building for Social Responsibility (BSR) over its use of the name Vermont Built Green for its own... Read more

The California Division of the State Architect (DSA) has issued an “Acceptance Criteria Document” for zero-water consumption urinal fixtures that is helping to clear the way for nonflushing urinals in California schools and state-owned buildings. With this document, “DSA addresses those sections of the code that were controversial, and says... Read more

Meanwhile, University of Georgia researchers have found that selective serotonin reuptake inhibitors (SSRIs)—including fluoxetine and other common

antidepressants—delay both development in fish and metamorphosis in frogs. The affected animals eventually caught up with their drug-free peers, “but we know that in water, timing is... Read more

Cool Roof Rating Council (CRRC) has begun the aged-testing component of its product rating program. CRRC has been providing third-party verification of both initial solar reflectance and initial thermal emittance of roofing products since September 2002 (see

EBN

Vol. 12, No. 7), and this aged-testing component adds another... Read more

EBN... Read more

A recent study that compared development patterns to the health of over 200,000 people in 448 counties in major metropolitan areas around the U.S. found that

car-dependent suburbanites suffer from obesity and high blood pressure at a greater rate than city-dwellers. The report, “Relationship between Urban Sprawl and Physical Activity,... Read more

The Boston Society of Architects has approved the Institution Recycling Network (IRN) to offer American Institute of Architects

Learning Units in construction waste management. IRN, based in Concord, New Hampshire, is a cooperative organization that works to improve the financial and operating performance of recycling programs at... Read more

Last October’s issue of

EBN (

Vol. 12, No. 10) was another great one. My non-expert two cents on the filtration issue is that the best way to do HVAC in buildings (at least buildings other than single-family homes) is to separate space conditioning, which is an intermittent load, from ventilation, which is always present during... Read more