The newly revised ANSI/ASHRAE Standard 105-2014, Standard Methods of Determining, Expressing, and Comparing Building Energy Performance and Greenhouse Gas Emissions, is intended to provide consistency in reporting the energy performance of existing or proposed buildings.
The standard answers such questions as: Should the measurements of a building’s area used in the equation to derive energy use per square foot be taken from the exterior dimensions or to the centerline of the wall? And, should storage spaces be included even though they are unoccupied?
“A standard method of measurement is needed to compare one building’s energy use to another,” says Keith Emerson chair of the Standard 105 committee. “For instance, comparing one building’s summer energy use to another building's winter use would be comparing apples and oranges.”
The standard provides a common basis for reporting building energy use in delivered energy forms and expressions of energy performance, and for comparing energy performance in terms of energy resources used and greenhouse gas emissions created—both across buildings and for energy efficiency measures within buildings. It also provides guidelines for comparing design options.
“To keep the standard flexible, a number of decisions are left to those who adopt it, including what should be calculated beyond site energy and the multipliers for those additional calculations,” Emerson said.
Related Stories
| Feb 23, 2012
Federal budget cuts put major building projects on hold
A plan to build the National Bio and Agro-Defense Facility in Kansas is among several major building projects in jeopardy after the Obama administration’s 2013 budget was unveiled. The budget would cut all construction spending for the facility.
| Feb 23, 2012
Federal agencies fixed on leasing LEED-certified space
The federal government is especially focused on renting LEED-certified spaces.
| Feb 23, 2012
Regulators investigating construction accident at World Trade Center
The New York Port Authority and the city’s fire and building departments are investigating an accident at the World Trade Center construction site in lower Manhattan after a crane dropped steel beams that fell about 40 stories onto the truck that delivered them.
| Feb 23, 2012
New Virginia statewide building code goes into effect March 1
After March 1, all building plans in Virginia must adhere to the 2009 code that was adopted a year ago.
| Feb 23, 2012
Privatizing flood insurance could lead to new code requirements
One thing that could pave the way toward private flood insurance would be NFIP reforms, like requiring new construction in flood-prone areas to be elevated.
| Feb 22, 2012
ACI BIM manual for cast-in-place concrete in development
The improved communication, coordination, and collaboration afforded by BIM implementation have already been shown to save time and money in projects.
| Feb 20, 2012
Comment period for update to USGBC's LEED Green Building Program now open
This third draft of LEED has been refined to address technical stringency and rigor, measurement and performance tools, and an enhanced user experience.
| Feb 20, 2012
GAF introduces web portal for architects and specifiers
The new portal offers a clean look with minimal clutter to make it easier to find the technical information and product data that architects need.
| Feb 17, 2012
AGC advocates for federal procurement reform
Ensure that small business goals take into consideration actual small business capacity in relevant specialty markets.
