The U.S. Department of Energy (DOE) has released version 2.0 of its EnergyPlus modeling software. Compatible with Windows and Linux operating systems, the new version of the software features additional weather and materials data, a new green roof simulation tool, and enhancements to its ventilation and mechanical systems modeling tools. More... Read more

The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) has released the first public comment draft of its “Proposed Standard 189, Standard for the Design of High-Performance Green Buildings Except Low-Rise Residential Buildings.” This standard, being developed in conjunction with the Illuminating Engineering... Read more

According to... Read more

Building for Environmental and Economic Sustainability, software from the Building and Fire Research Laboratory, National Institute of Standards and Technology (NIST). Free download from www.bfrl.nist.gov/oae/software/bees.html or order from the U.S. EPA’s Pollution Prevention Information Clearinghouse, 202-566-0799, ppic@epa.gov. For further... Read more

Emissions of volatile organic compounds (VOCs) and other... Read more

Despite the increasing popularity of green building, research on high-performance building practices and technologies represents a tiny percentage of federally funded research. According to a report released in March 2007 by the Research Committee of the U.S. Green Building Council (USGBC), only 0.2% of federally funded research, an average of... Read more

Drywall comes in three primary product types. Paper-faced drywall remains by far the dominant product for finishing interior walls. It is inexpensive and easy to work with (cutting panels by scoring and snapping). Environmentally, the paper is typically 100% post-consumer recycled, the gypsum core can be derived from flue-gas-desulfurization (... Read more

The Athena Sustainable Materials Institute has released a new life-cycle assessment (LCA) tool for assemblies. The EcoCalculator for Assemblies draws on results from Athena’s Impact Estimator for Buildings to give instant LCA results for over 400 building assemblies, including those for walls, roofs, floors, and windows. Commissioned by the... Read more

The Sustainable Forestry Initiative (SFI) announced in March 2007 that four firms have achieved accreditation by the American National Standards Institute (ANSI) to perform chain-of-custody certification audits for SFI and the Programme for the Endorsement of Forest Certification (PEFC) sustainable forestry certification systems. PEFC is an... Read more

Michael Potts has replaced Amory Lovins as CEO of the Rocky Mountain Institute (RMI), the Colorado-based nonprofit and self-described “think and do tank.” Potts has been a member of RMI’s board of trustees since 2005. He previously served as CEO of software design company American Fundware, and, most recently, as a managing partner at Galway... Read more

Products earning Cradle to Cradle (C2C) certification, a multifaceted program run by McDonough Braungart Design Chemistry (MBDC), are now recognized in the LEED Rating System, following an April 2007 ruling by the U.S. Green Building Council (USGBC). The new “administrative credit interpretation ruling” allows projects to earn a LEED credit if... Read more

Energy Star, the federal energy efficiency program, has announced that it will no longer certify programmable thermostats. According to Energy Star spokesperson Jill Abelson, the thermostats have the potential to save homes $150 or more yearly when used properly, but in practice, homes with programmable thermostats don’t consume less energy... Read more

The Collaborative for High Performance Schools (CHPS) has recognized the Greenguard Children and Schools product certification program from the Greenguard Environmental Institute (GEI) as a means of improving indoor air quality in school buildings. GEI’s product certification program complies with California’s Department of Health Services... Read more

In a perfect world, energy simulations and design tools would be so well integrated that each time an architect moved a wall, added a window, or changed a lighting specification, the building’s predicted energy performance would be updated and displayed instantly. With that sort of real-time feedback, designers would quickly become skilled at... Read more

A report from the United Nations Environment Programme, titled “Buildings and Climate Change: Status, Challenges, and Opportunities,” details connections between the building industry and efforts to curb greenhouse gas emissions. According to the report, which focuses primarily on Europe, more rigorous energy efficiency standards there could... Read more