Builders, remodelers, product manufacturers and other industry professionals received their first expanded look into a brand-new edition of the ICC(International Code Council) 700 National Green Building Standard (NGBS) during “Green Day” at the International Builders’ Show in Las Vegas last week.

First published in 2009, NGBS forms the basis of many local and national programs and allows builders to certify new homes and remodeling projects that meet established criteria in energy efficiency, water and resource conservation, indoor air quality, lot and site development and homeowner education. The updated edition–the only green building rating system for residential construction approved by the American National Standards Institute (ANSI)–raises the bar for energy-efficiency requirements and revolutionizes the treatment of renovations and remodeling projects.

Attendees received a detailed briefing on the updated NGBS, which was approved earlier this month, at a special session on the exhibit floor. “The new edition of the standard brings a minimum 15 percent increase in energy efficiency,” said Dominic Sims, chief operating officer of the ICC, which partnered with NAHB on its development. “Consumers understand that this level of improvement will deliver real savings over time.”

Changes include referencing the 2009 International Energy Conservation Code (the earlier edition referenced the 2006 code) as the baseline to exceed in energy efficiency, completely revised and expanded criteria for remodeling that makes it possible to certify kitchen, bathroom and basement renovations and additions under 400 feet, and incentives for choosing lots in green communities.

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