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
| Apr 23, 2014
Obama’s 2015 budget includes $1.7 billion to GSA for building construction, renovations
The Obama Administration has proposed $1.7 billion for construction, renovation, and repairs to federal buildings in fiscal year 2015 under the auspices of the U.S. General Services Administration.
| Apr 18, 2014
Massachusetts Supreme Court clarifies building code liability issue on mixed-use projects
The Massachusetts Supreme Judicial Court recently ruled that distinct portions of a mixed-used building may be treated as distinct and different structures under the state building code.
| Apr 18, 2014
First international buildings among 700-plus certified by BOMA 360 Performance Program
In the first quarter of 2014, the Building Owners and Managers Association (BOMA) International certified 66 properties in the BOMA 360 Performance Program for commercial real estate markets across the U.S and, for the first time, abroad.
| Apr 16, 2014
OSHA proposes $2.3 million in fines against Olivet Management for exposing workers to asbestos and lead
Olivet Management LLC, a real estate development and management company, faces $2.3 million in proposed fines from the Occupational Safety and Health Administration.
| Apr 10, 2014
Green Building Certification Institute partners with Well Building Institute on standard
The Green Building Certification Institute (GBCI), which administers third-party certification for the LEED standard, and the Well Building Institute will collaborate to promote the WELL Building Standard.
| Apr 10, 2014
OSHA’s construction safety advisory committee invites input on construction regulations
The Occupational Safety and Health Administration will hold a meeting of the Advisory Committee on Construction Safety and Health May 7-8, 2014, in Washington, D.C.
| Apr 10, 2014
ASTM’s International Standards in Building Codes now available in DVD and online
The compilation ASTM Standards in Building Codes contains more than 1,300 ASTM construction specifications, practices and test methods, and is now available in DVD and online.
| Apr 10, 2014
New California energy code requires building systems to be ready for demand response energy management
Starting in June, California’s latest version of its Title 24 building code kicks in, requiring several systems come with demand response capability.
| Apr 4, 2014
Green Building Initiative moves to include locally sourced materials in Green Globes
The Green Building Initiative group based in Portland, Ore., met with the Department of Agriculture on a plan to include locally sourced materials in its green building standards.
| Apr 4, 2014
White roofs outperform green roofs in reducing heat-island effect, says Lawrence Berkeley Lab
A new report from LBNL says that white roofs are three times more effective than green roofs at “cooling the globe.”
