Army Targets Aggressive LEED

Green Building Goals

August 18, 2011 - When the U.S. Army announced it was adopting the new ASHRAE 189.1 high-performance building standard, some in the green building community worried it was calling a retreat: the Army has required building to LEED Silver standards since 2006, and ASHRAE 189.1 jibes more closely with LEED at the Certified level. For now, though, the Army—which owns more than a billion square feet of building space—is not only keeping LEED Silver in addition to ASHRAE 189.1 but is also working toward net-zero energy, water, and waste at a number of its existing installations.

According to Katherine Hammack, assistant secretary of the Army for installations, energy, and the environment, 189.1 is a more prescriptive “cookbook” approach that works well for the military and the federal government more generally. “We need to know how to build a really good LEED building and follow the guidance and direction of federal mandates,” Hammack says. “And the ASHRAE standard tells us exactly what we need to do.”

Before being sworn into the Army in mid-2010, Hammack was on the committee that developed ASHRAE 189.1, which started in part as a response to jurisdictions adopting LEED as a building code, but the LEED rating systems are not written like ordinances; they intentionally give ample freedom of choice to design teams and building owners. ASHRAE 189.1, Hammack says, was designed to put LEED into building code language.

She anticipates that in the future the two design standards will be “much more closely nested,” with the ASHRAE standard referenced in LEED as a way to meet certain prerequisites and achieve certain credits. Far from trying to move away from LEED, Hammack says the Army has been reaching LEED Gold on many projects and even has several buildings targeting LEED Platinum. read more>>>