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Is Nano a No-No? Nanotechnology Advances into Buildings

Nanotechnology takes advantage of the novel properties that particles can exhibit at a billionth of a meter in size. Those properties are being used in building materials, where they can improve thermal performance and the effectiveness of photovoltaics, among many possibilities. The field has little regulation, however, despite significant health and environmental concerns.
Environmental Building News—March 1, 2008

Water: Doing More With Less

The U.S. uses about 400 billion gallons of water a day, and water shortages are becoming more common. Water conservation is possible in several areas in and around buildings, however, with water-saving products and technologies currently on the market and in development.
Environmental Building News—February 1, 2008

Behind the Logos: Understanding Green Product Certifications

The number of environmental product standards and certifications is growing rapidly, putting numerous different "green" logos on products. This article reviews the key programs and evaluates their rigor, and offers guidance in using them to accomplish project goals.
Environmental Building News—January 1, 2008

Controls Go Wireless

Particularly for lighting and ventilation controls in retrofit situations wireless systems offer potential energy, money, and resource savings. The technology is still new, however, and potential drawbacks like health risks, interference, and even the potential for increased energy consumption need to be examined.
Environmental Building News—December 1, 2007

Investing in the Environment: The Financial Industry's Approach to Green Building

Recent changes in the financial industry are providing new opportunities for financing green buildings. However, lenders and investors have different approaches to documenting the benefits of green, which affect how they use rating systems and other metrics. To navigate effectively in the financial world, green designers and builders need to understand the territory.
Environmental Building News—November 1, 2007

Prefabricating Green: Building Environmentally Friendly Houses Off Site

Prefabricated housing offers several potential environmental benefits, including reduced transportation impacts, reduced waste, and quality control for better durability and performance. Aside from a few industry leaders, however, most manufacturers do not take full advantage of those efficiencies to create affordable high-performance houses.
Environmental Building News—October 1, 2007

Driving to Green Buildings: The Transportation Energy Intensity of Buildings

The energy used traveling to and from an average office building—its transportation energy intensity—can be more than twice the energy used to run it. This article addresses the significance of this issue and examines strategies for lowering transportation energy intensity through increased density and improved transit options.
Environmental Building News—September 1, 2007

Antimicrobial Chemicals in Buildings: Hygiene or Harm?

Carpets, door handles, and a myriad of other building products now contain pesticides targeting fungi and bacteria, offering potential benefit to the indoor environment, but also raising health concerns. This article asks whether antimicrobial products live up to their marketing claims and whether relying on them is a sound path to a hygienic environment.
Environmental Building News—August 1, 2007

The Challenge of Existing Homes: Retrofitting for Dramatic Energy Savings

Greenhouse gas emissions associated with residential energy use account for a fifth of all emissions in the U.S. Retrofitting existing houses to achieve a two- to three-fold reduction in energy use is necessary if we are to achieve the emissions reductions scientists say are required for avoiding catastrophic climate change. Here’s a look at how it can be done.
Environmental Building News—July 1, 2007

Making Carpet Environmentally Friendly

Carpets are the most popular floorcovering in the U.S., but they have also been associated with environmental problems including indoor air emissions and intensive resource use. However, manufacturers have worked to curb their environmental footprints by recycling carpet, examining their life-cycle impacts, and pursuing broad-based certification.
Environmental Building News—June 1, 2007
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Watermiser Flow Control Valve

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Free Energy Modeling in Google SketchUp

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