Credit: Peter Vanderwarker

Natural Ventilation: The Nine Biggest Obstacles and How Project Teams Are Beating Them

Designers are reinventing the art and science of passive comfort control even where climate and culture favor mechanical systems.

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Product News & Reviews

Silicone Air Barrier Offers Simple, Systematic Approach

A whole-building air barrier system with a 15-year warranty is offered as a package from Dow Corning.

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New Ground-Source Heat Pumps Saving Energy and Dollars in Commercial Applications

WaterFurnace’s CLW Chiller “geothermal” heat pump also uses excess heat and cooling within a building to provide energy-efficient HVAC.

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Green Building News

Chemical Industry, USGBC Announce Ceasefire

After years of anti-LEED lobbying, the American Chemistry Council says it wants to work to make LEED better.

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Attacks on LEED Continue in House Spending Bill

Some lawmakers want government agencies to justify green building and change how they use certifications like LEED and Green Globes.

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One Standard to Rule Them All: LEED, IgCC, 189.1 to Be Parts of Single System

Building codes could harmonize seamlessly with LEED certification as USGBC, ASHRAE, and ICC join forces.

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Onsite Verification Part of LEED’s Global Vision

GBCI will partner with Bureau Veritas to provide global support for LEED certification, with a focus on customer service and rigor.

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Tuning Today’s Building Designs to Tomorrow’s Climate

A new modeling tool, WeatherShift, helps designers see how designs today can account for comfort, resilience, and energy needs decades down the line.

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From the Editors

Architectural Board Should Reinstate Sustainability Criteria

Collaboration skills and sustainability concepts are being “elevated” by the National Architectural Accrediting Board (NAAB)—but it’s really a demotion.

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Environmental Building News

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GreenSpec new listings

EcoSlender High-Speed Hand Dryer

Hokwang Industries Co., Ltd.
Added on 08/01/2014

ENRGY 3.E Polyisocyanurate Board Insulation

Johns Manville Corporation
Added on 08/01/2014

Fermacell Gypsum Fiber Board

Fermacell GmbH
Added on 07/25/2014

Conditioning Energy Recovery Ventilator (CERV)

Build Equinox
Added on 07/01/2014

Residential Advice & Analysis