BuildingGreen Report

News Brief

August 30, 2007

Developers and builders in Babylon, New York, are preparing to register their buildings for LEED certification to comply with a 2006 local law that goes into effect in December 2007. The law requires all new commercial buildings larger than 4,000 ft2 (400 m2) to achieve at least a LEED Certified rating. In addition, projects applying for... Read more

News Analysis

August 30, 2007
“Build tight and ventilate right” is a favorite motto of building scientists concerned with good indoor air quality and low energy use. A new test method from ASTM International—ASTM E2357, “Standard Test Method for Determining Air Leakage of Air Barrier Assemblies”—offers them help in living up to their motto.

The method provides the first... Read more

News Brief

August 30, 2007

The American Society of Heating, Air-Conditioning, and Refrigerating Engineers (ASHRAE), the U.S. Green Building Council, and the U.K.-based Chartered Institute of Building Services Engineers are working together to provide guidance for measuring and reporting building performance. After a literature review, due out on September 1, 2007, the... Read more

News Analysis

August 30, 2007

Philips Lighting Company has announced a new line of T-8 fluorescent lamps using the company’s Alto II technology to replace its ten-year-old Alto technology. Each new lamp contains 1.7 mg of mercury, compared to 3.5 milligrams (mg) in each original Alto lamp. “Through some innovative approaches to mercury doses and retention in the lamp... Read more

Explainer

Ground-source heat pumps take advantage of stable temperatures just below the Earth's crust for energy-efficient heating and cooling.

August 30, 2007

Ground-source heat pumps (GSHPs), often called “geothermal heat pumps,” exploit the relatively stable temperatures found just 5 feet (1.5 m) or more below the surface, either depositing or extracting low-intensity heat. Heat pumps—whether ground-source or air-source—are basically air conditioners that can be run in reverse to provide heating as... Read more

Explainer

August 2, 2007
Light-emitting diodes (LEDs) use semi-conducting materials to turn electricity into light; electrons jump from one material to another, emitting photons as they travel. Different semiconductor materials create different colors of light: most white LEDs use indium gallium nitride (InGaN), which actually emits blue light. The blue light excites a... Read more

News Brief

August 2, 2007
Nevada Solar One, a 64-megawatt solar-thermal power plant in Boulder City, Nevada, became fully operational in June 2007. The plant, among the largest in the world, features parabolic-trough mirrors that focus sunlight on tubes filled with a synthetic oil, heating it to over 700°F (370°C). The hot oil flows to a central plant, where it passes... Read more

News Analysis

August 2, 2007
Having updated their influential 2004 study of the cost of green building [see

EBN

Vol. 13, No. 8] with new data, Lisa Fay Matthiessen and Peter Morris of Davis Langdon still come to the same conclusion. There are so many huge cost factors in construction that it is not possible to detect any statistically significant difference between... Read more

Op-Ed

August 2, 2007

In Alex Wilson’s editorial in the June 2007 issue [

EBN Vol. 16, No. 6], he was careful to point out that “the

heat source in nuclear power plants does not emit greenhouse gases” (my emphasis). This simplification distorts the true emissions picture, as shown in an analysis performed by Jan Willem Storm van Leeuwen and Philip... Read more

News Brief

August 2, 2007

The U.S. Green Building Council (USGBC) announced in July 2007 that it had reached a total of 10,000 member companies, signaling large growth in the previous year. The 2007 figure represents a growth of 2,800 members over 2006 numbers; USGBC gained a total of 4,800 members between 2002 and 2006. Member companies include architects,... Read more

News Brief

August 2, 2007
With more than 4.2 million square feet (39,000 m2), Chicago’s Merchandise Mart is the largest commercial building in the world. As owner of the building, Merchandise Mart Properties (MMP) already employs some green practices, such as recycling waste and using cleaning products with low levels of volatile organic compounds (VOCs). MMP is now... Read more

News Brief

August 2, 2007

A study published in

Forest Products Journal in June 2007 found that wood treated with copper azole or alkaline copper quaternary compound (ACQ) to both above-ground and ground-contact levels is prone to damage from brown-rot fungi. Both chemicals were introduced to replace chromated copper arsenate for residential use several years ago... Read more

News Brief

August 2, 2007

One of the largest waste collection and recycling companies operating in the U.S., Waste Management, Inc., has acquired an existing business, LampTracker, which offers a mail-back recycling program for fluorescent lamps. The company sells special containers for collecting and shipping fluorescent tubes, compact fluorescent lamps, and other... Read more

Product Review

August 2, 2007

SierraPine, which manufactures the Medex, Medite II, and Arreis lines of architectural fiberboards and moldings made of recycled and recovered wood free of added urea-formaldehyde, has begun producing particleboard using a phenol-formaldehyde (phenolic) binder rather than the conventional urea-formaldehyde (UF) binder. The new particleboard,... Read more

News Brief

August 2, 2007

The Canada Green Building Council (CaGBC) and the Building Owners and Managers Association of Canada (BOMA Canada) have discontinued negotiations towards a cooperative relationship. According to Nancy Grenier, manager of communications for CaGBC, the two organizations had been pursuing a relationship in which they would promote each others’... Read more

News Brief

August 2, 2007

Until recently, builders using structural insulated panels (SIPs) had to work with an architect or engineer to prove the technique was equivalent structurally to those spelled out in the International Residential Code. In May 2007, the International Code Council (ICC) adopted prescriptive specifications and installation details for SIPs into... Read more

News Analysis

August 2, 2007

In July 2007 the New Buildings Institute (NBI) released its Advanced Buildings

Core Performance Guide. The guide describes a series of energy-efficiency measures, selected by NBI using a comprehensive energy-modeling exercise, as the most cost-effective ways to achieve 20%–30% energy savings in buildings throughout the U.S. This guide... Read more

Op-Ed

August 2, 2007

Thank you for your recent article on light bulb bans [see

EBN

Vol. 16, No. 4]. It was well documented and had good points about the value of improving incandescent lamps rather than banning them. Incandescent lamps still have their place in some situations, and it would make no sense to replace every incandescent bulb with a... Read more

News Brief

August 2, 2007

Six organizations have joined forces to create a design guide focused on indoor air quality (IAQ) in nonresidential buildings. The U.S. Environmental Protection Agency initially decided to fund a design guide and reached a cooperative agreement with the American Society of Heating, Refrigerating, and Air-Conditioning Engineers. A memorandum of... Read more

News Brief

August 2, 2007

A spokesperson for San Francisco’s Department of Environment confirmed that chances were very good that legislation would be enacted to formalize recommendations put forth in a June 2007 report by the Mayor’s Task Force on Green Building. Following the proposed recommendations, large commercial and high-rise residential buildings, both new and... Read more