07/16/2009

Changes Proposed to Standard 90.1 Requirements Available for Public Review

 

Eighteen (18) addenda have been proposed to ANSI/ASHRAE/IESNA Standard 90.1-2007 Energy Standard for Buildings Except Low-Rise Residential Buildings, which provides minimum requirements for the energy-efficient design of buildings. The proposed changes, which are designed to further improve the energy efficiency of buildings covered by the standard, are now open for public review.

“As we move toward publication of the 2010 standard, the 90.1 committee is considering many changes to reduce building energy use and cost,” say Mick Schwedler, chair of the committee. “The proposed addenda that are out for review move toward our goal of 30 percent energy cost savings.”

Among the proposed changes are a requirement for supply air temperature reset in multiple-zone HVAC systems, requirements for continuous air barriers, a requirement for the allowance of a number of paths to reduce building roof load, a reduction in additional lighting power allowances by reducing both lighting energy and the energy needed to cool a space, and a requirement for the orientation of fenestration to be considered to reduce thermal loads.

Each of these addenda can have a significant impact in increasing the energy efficiency of buildings. According to Schwedler, balancing the supply air temperature reset with an increase in fan energy can substantially reduce the HVAC system’s energy use; the energy savings resulting from that requirement alone can be as much as 2.5 to 3 percent.

“A working group comprised of many interested parties developed an energy saving proposal that we hope will lead to acceptance and adoption,” says Schwedler of the proposed changes.

The proposed addenda to ASHRAE/IESNA Standard 90.1 are available during their public review period at www.ashrae.org/publicreviews.

 

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Connectrac wireways offer discrete power and technology connectivity in open interior spaces of all kinds; affordably, quickly and with long-term flexibility.



When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.

Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.


Mitsubishi Electric’s H2i R2-Series heat pumps provide 100% heating capacity down to 0° F and simultaneous heating and cooling down to -4° F delivering year-round comfort, regardless of climate zone.

 
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