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The ICC/ASHRAE 700-2015 National Green Building Standard™ (NGBS) has been approved by the American National Standards Institute for all types of sustainable residential construction. A collaborative effort of the International Code Council, ASHRAE and the National Association of Home Builders, NGBS outlines a variety of green practices that can be incorporated into new homes and multifamily buildings, as well as hotels, dormitories and land developments. The Standard also delivers stand-alone chapters for both home remodeling and additions and renovations of multifamily buildings.
The green practices address site and lot design, preparation and development; resource, energy and water efficiency; indoor environmental quality; and operation, maintenance and building owner education.
Four levels—Bronze, Silver, Gold and Emerald—enable residential professionals to integrate sustainability and high performance at a level most appropriate for their businesses and specific housing markets.
Changes for the 2015 Edition
The 2015 edition incorporates changes that better align the NGBS with the I-codes, expands the application of innovative practices and builds upon years of building and certifying to NGBS. Some of the more notable updates include:
- Substantial revisions to the Energy Efficiency chapter, which now has more stringent rating levels based upon whole-house energy savings that are above the 2015 International Energy Conservation Code.
- New criteria for measuring water usage that focus on appliance and fixture performance instead of third-party water efficiency labels.
- Mandatory installation of carbon monoxide alarms for all buildings, regardless of level of certification or local code.
- Revamped stormwater management options that encourage low-impact development practices.
- Greater emphasis on and recognition of multi-modal transportation options including bicycle parking, pedestrian connectivity, proximity to transit and electric-vehicle charging.
- New references in the Resource Efficiency chapter on innovative practices for environmental product declarations for both specific and industry-wide products.
This latest edition includes everything needed to design, construct or remodel any residential project to the most current sustainable and green building criteria available ─ all under one roof!