Constructing to the latest version of an American Society of Heating, Refrigeration and Air-Conditioning Engineers standard increases building efficiency 6 percent to 8 percent over the 2010 version, officials say.

The recently published 2013 update of ASHRAE Standard 90.1, “Energy Standard for Buildings Except Low-Rise Residential Buildings, includes 110 changes that the Pacific Northwest National Laboratories says can increase energy savings over 50 percent in certain situations.

The lab conducted analysis using models of 16 building prototypes in 17 climate locations.

 “ASHRAE is committed to continually improving building energy performance, so we are pleased with this confirmation that the 2013 standard achieves significant energy savings over its predecessor,” said William Bahnfleth, ASHRAE’s president. “As we approach the 40th anniversary of the publication of the standard, these new savings underscore Standard 90.1’s key role in promoting energy efficiency in buildings in the United States by establishing successively more stringent — but cost-effective — minimum requirements and we look forward to further advances in future revisions.”

The standard has been endorsed by the American National Standards Institute and the Illuminating Engineering Society.

“The Illuminating Engineering Society of North America has provided technical support on lighting related requirements in each iteration of the standard since 1975,” said technology director Rita Harrold. “IES continued that role in developing the energy-efficiency provisions in the 2013 standard through modified LPDs (lighting power densities) and additional daylighting and controls strategies. The challenge to achieve higher energy efficiencies increases with each version of the standard and begins anew as we address targets for the 2016 edition.”