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Thermal Bridging

Thermal bridging, when one material conducts heat much better than materials around it, can reduce the effectiveness of insulation to a surprising extent.
Environmental Building News—July 1, 2009

Brominated Flame Retardants

Keeping furnishings, appliances, and building materials from catching fire and burning up is important, but many flame retardants aren't good for us or the environment.
Environmental Building News—June 1, 2009

Adaptive Thermal Comfort

Adaptive thermal comfort broadens our understanding of the comfort zone by accounting for human behavior and perception, and factors like amount of clothing and air movement.
Environmental Building News—May 1, 2009

Porous Paving

Pavement that allows infiltration of stormwater comes in a variety of types, and offers many environmental and even cost benefits.
Environmental Building News—April 1, 2009

Graywater Collection and Use

If properly stored and separated from potable water, graywater collected from sinks, showers, and clothes washers can be used to irrigate landscaping.
Environmental Building News—March 1, 2009

Using Fly Ash in Concrete

Fly ash lowers the environmental footprint of concrete and improves durability. Pouring and curing concrete with high levels of fly ash requires special treatment.
Environmental Building News—February 1, 2009

Weighting Environmental Impact Categories

Life-cycle assessments (LCAs) score products or design options across a series of environmental impact categories. To compare two products with different impact profiles, it becomes necessary to weight those categories, a difficult process.
Environmental Building News—January 1, 2009

Defining Recycled Content

Accepted definitions bring some clarity to the term "recycled content," but still leave gray areas that are open to interpretation by product manufacturers.
Environmental Building News—December 1, 2008

Reducing Heat Flow Through Windows

Bringing daylight into a building through windows usually means a loss of heat; low-emissivity coatings, multiple panes, and gas fills can make windows more energy-efficient.
Environmental Building News—November 1, 2008

Foam-in-Place Polyurethane Insulation

Sprayed polyurethane foam offers several advantages over other forms of insulation, including R-value and airtightness. Installation, R-value, and ozone safety vary with the type of foam used.
Environmental Building News—October 1, 2008
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Navien Tankless Gas Water Heater

Eric Nelson says, “The built-in recirculating pump could be a water and energy saving feature depending on how hot water is used in...” More...

Syndecrete

Mark Piepkorn says, “Thanks for the heads-up, Jim. Oddly, http://www.syndesisinc.com is still up and running without a notice. We'll get the lowdown this...” More...

Jim Nicolow says, “Just went to thier web page, which displayed a note saying they are no longer doing business due to market...” More...

Triple Guard Energy Sill Sealer

Christopher Vlcek says, “This looks like a useful product. However, builders in our area often lap the sheathing 1" over the concrete -...” More...

Navien Tankless Gas Water Heater

Bion D. Howard says, “Specs look good, so I hope to recommend one in project soon. One thing comes to mind; extended life...” More...

Daytime Light Pollution From Buildings May Harm Wildlife

Tristan Roberts says, “Hillary, here is a link to the abstract: http://www.esajournals.org/doi/abs/10.1890/080129 Polarized light pollution: a new kind of ecological photopollution Gábor Horváth1, György Kriska2, Péter...” More...

Hillary Brown says, “could you kindly cite the article title and authors. Thanks” More...

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