ASHRAE releases 2007 Residential Energy Standard.

Press Release Summary:



ANSI/ASHRAE Standard 90.2-2007, Energy-Efficient Design of Low-Rise Residential Buildings provides minimum requirements for the energy-efficient design of residential buildings. Envelope tables were simplified by combining near like categories into single categories or enhancing the energy values, and the definition of conditioned space was simplified. Adjustments to mass walls and cool roof provisions were made, as well as to the climate tables.



Original Press Release:



ASHRAE Publishes 2007 Residential Energy Standard



ATLANTA - ASHRAE's new 2007 residential energy efficiency standard contains several improvements made based on public input.

ANSI/ASHRAE Standard 90.2-2007, Energy-Efficient Design of Low-Rise Residential Buildings, provides minimum requirements for the energy-efficient design of residential buildings.

"The standard features a simplified format and greater attention to the details of the document based on input received during public review periods," Jonathan Humble, chair of the 90.2 committee, said.

Responses to public input allowed improvements to the following provisions of the standard:

Further simplification of the envelope tables regarding the categories on walls, below grade insulation requirements, and the fenestration requirements by either combining near like categories into single categories or enhancing the energy values.

Clearer definition of "conditioned space," which will help in assessing when and how such spaces should be classified.

Enhancement of the "mass walls" provisions to make clearer the recognition of this type of system and its benefits to energy conservation.

Simplification of the cool roof provisions, by removing the equation and table and substituting with a simple table to determine compliance.

Enhancement to the climate tables with the intent to make the document more acceptable and responsive to the needs of countries outside the United States and Canada. In this case, added were climate data for China, Taiwan, Malaysia and Mexico.
The cost of ANSI/ASHRAE Standard 90.2-2007 is $95 ($76, ASHRAE members).

To order, contact ASHRAE Customer Service at 1-800-527-4723 (United States and Canada) or 404-636-8400 (worldwide), by mail at 1791 Tullie Circle NE, Atlanta, GA 30329, or visit the ASHRAE.org Bookstore.

ASHRAE, founded in 1894, is an international organization of some 50,000 persons. ASHRAE fulfills its mission of advancing heating, ventilation, air conditioning and refrigeration to serve humanity and promote a sustainable world through research, standards writing, publishing and continuing education.

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