by Canada Mortgage and Housing Corporation, 700 Montreal Road, Ottawa, Ontario, K1A 0P7, Canada. 235 pages, paperback, $29.99.

Congratulations on an excellent May/June 1996 issue! Very seldom do I read any magazine and find fewer things to pick at than this particular issue of

EBN. But I do have two. As we have discussed in the past, the name of CMHC, the Canada Mortgage and Housing Corporation, would seem to make more sense as the Canadian Mortgage and Housing... Read more

The pilot lights on gas-fired fireplaces waste a lot of energy. That’s one conclusion of a recent study by Skip Hayden of the Combustion Gas Research Laboratory of CANMET and Consumers Gas, a major Canadian gas utility. Fifty-two homes with significant use of gas fireplaces were surveyed; 38 of these had continuous pilots. In the homes with... Read more

by Eoin O. Cofaigh, John A. Olley, and J. Owen Lewis of the Energy Research Group, University College, Dublin. 1996. James & James (Science Publishers) Ltd., on behalf of the European Commission, Directorate General XII for Science Research and Development. Paperback, 160 pages, $50.00.

With great interest, I read your well-researched article on cork flooring in the January/February issue (Vol. 5, No. 1). As you concluded in the article, the harvest of commercial cork from the cork oak (

Quercus suber) tree is a relatively benign extraction that is one of nature’s best examples of a renewable, non-timber forest resource... Read more

Scientists at the National Renewable Energy Laboratory (NREL) in Golden, Colorado, have achieved a new world record in thin-film photovoltaic cell efficiency. A record 17.7% “sunlight-to-electricity” efficiency was achieved with a compound semiconductor called copper indium gallium diselenide. While this efficiency is 60% higher than the... Read more

The world’s first independently certified, “well-managed” redwood lumber is now available from the Big Creek Lumber Company of Davenport, California in the Santa Cruz Mountains. Big Creek sells redwood, Monterrey pine, and Douglas fir from its 6,800 acres (2,750 ha) of forestland. The Scientific Certification Systems evaluation team called Big... Read more

Expanded polystyrene (EPS) manufacturers representing 70% of the EPS industry recently joined together in April 1995 to form a trade organization, the EPS Molders Association, to more effectively promote their products. According to the May 1996 issue of

Energy Design Update, this development should help solve one of the biggest... Read more

U.S. greenhouse gas emissions continued to rise in 1994, totaling 1,666 million metric tonnes carbon equivalent according to the report

Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-1994 published by the U.S. Environmental Protection Agency, November 1995 (this figure does not include the net effect of carbon “sinks” in... Read more

castellated I-beams—essentially, regular I-beams with much... Read more

When homebuilder Barbara Harwood stumbled across the quote for a new mechanical system for a grocery store owned by her husband, she knew that the loads were out of line. The quote called for a system... Read more

Now that we at

EBN have finally the caught up with the trends and have created our own website, we can slow down long enough to ask: Why are we doing this, anyway? Didn’t we have enough to do just publishing on paper? At least the courts have struck down Internet censorship, so we don’t have to worry about getting in trouble for... Read more

A newly formed organization is now developing standardized testing protocols for indoor air quality related products and materials. The Product Emissions Testing Lab (PETL) Network is bringing together representatives of academia, government, and industry to achieve consensus-based procedures and to certify laboratories to test products... Read more

A plethora of stay-in-place insulating concrete form building systems have been introduced in the last decade. Among these is the Rastra system—a European technology that is now getting established in the western United States.

The Rastra system uses 100% recycled expanded polystyrene (EPS) foam, ground into small beads and mixed with... Read more

Using the natural cycles of plant and animal life instead of chemicals and mechanical systems to process wastewater holds a great deal of attraction. Conventional sewage treatment systems already rely on bacteria to do much of the work, but these organisms perform very restricted functions within a system that is generally mechanistic.... Read more

Manufacturers argue that, properly installed and operated, these heaters pose no threat, but the many warnings and cautions in the installation manuals suggest that... Read more

The First Annual National Environmental Sensitivity Award from the Construction Specification Institute was awarded to BSW International of Tulsa, Oklahoma. BSW is known for catering to corporate clients, such as Wal-Mart, with repetitive building programs. BSW’s Green Team prepared the winning entry in the form of their Environmental... Read more

Energy consumption in the U.S. during 1995 totaled 87.2 quads or quadrillion Btu (92 x 1018 J), according to the March 1996

Monthly Energy Review, published by the DOE Energy Information Administration. This record level represents an increase of 1.8% over 1994 consumption.

The U.S. Environmental Protection Agency and the U.S. Navy are sponsoring a student design competition, Breaking Through Barriers: Balancing Ecology and Economics, to help identify options for what to do with a military base being decommissioned. A key requirement of the competition is that teams must be interdisciplinary, including (at a... Read more