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NEWS
Proposed Changes to Green Building Standard
March 11, 2010

Changes have been proposed for the new standard for the design of high-performance green buildings, published in January.

ANSI/ASHRAE/USGBC/IES Standard 189.1, Standard for the Design of High-Performance, Green Buildings Except Low-Rise Residential Buildings, is the first code-intended commercial green building standard in the United States. The standard provides a long-needed green building foundation for those who strive to design, build and operate green buildings.

Under The American Society of Heating, Refrigerating and Air-Conditioning Engineers’ (ASHRAE) continuous maintenance procedure, which allows requests for change to any part of the standard to be made at any time, changes have already been proposed.

Open for public comment are addenda a and b. Addendum a makes the daylighting definitions and criteria consistent with changes recently proposed to Standard 90.1, which sets requirements for energy efficient buildings. Addendum b reduces the space limitation for daylighting requirements. Rather than requiring daylighting in space larger than 1,000 square feet, the proposal would require it in spaces larger than 250 square feet.

For more information on the proposed addenda, visit www.ashrae.org/publicreviews.


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