FEATURE ARTICLE

Cost-Effective Green Retrofits: Opportunities for Savings in Existing Buildings

Between lighting, water use, mechanical systems, the building envelope, and occupant health, existing buildings are rife with cost-effective retrofits and operational opportunities that also offer environmental benefits. Improvements range from the painfully obvious to the more complex and involved.

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Green Building News

NAIOP Study Shows that Saving Energy Takes Know-How

A study commissioned by NAIOP argues that the 30%–50% energy savings called for by many organizations is not cost effective, but critics say the study is full of holes.

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ASHRAE to Launch Building Performance Label

A proposed labeling system from ASHRAE would expand Energy Star building performance metrics to a wider group of buildings.

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Dates Announced for LEED 2009 Launch, LEED AP Exam

USGBC has announced a launch date for LEED 2009 as well as dates for the retooled LEED Accredited Professional exams.

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Federal Stimulus Will Fund Green Building

The economic stimulus bill supports green building priorities to the tune of $79 billion, with support for energy efficiency, renewable energy, and green transportation projects.

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Retrofitting Professionals Get an Industry Association

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USGBC Puts Scot Horst in Charge of LEED

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Green Roof Professional Accreditation to Launch in June

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Groups Pledge to Find Common Carbon Metrics

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Alternative Septic Systems Draw Criticism

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NAHB Research Center Launches "Green Approved" Label

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Data Center Groups Lobby USGBC for New LEED Rating System

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Product News & Reviews

Coolerado Makes Solar Air Conditioning a Reality

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The First Practical Heliostat

Practical Solar has introduced a simple heliostat system to reflect sunlight into buildings for lighting and space heating; future applications will include water heating and electricity generation.

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iCrete Mixes Stronger Concrete With Less Cement

iCrete is an approach to concrete mix design that uses a proprietary algorithm, informed by detailed analysis of available aggregates, to optimize particle packing and use only as much cement as necessary.

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Top-10 Products for Affordable Green Retrofits

Ten key product areas represent compelling opportunities for cost-effective, environmentally friendly retrofits to existing buildings.

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From the Editors

Remembering Greg Franta

BackPage Primer

Porous Paving

Pavement that allows infiltration of stormwater comes in a variety of types, and offers many environmental and even cost benefits.

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April 2009

Volume 18, Number 4

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