Ductmate parent company DMI has joined the “Battle of the Buildings.”

The U.S. Environmental Protection Agency’s Energy Star competition will pit several company headquarters against one another to see which will reduce the most energy.

“As the only competitor in the Pittsburgh region, DMI Companies is honored to be a part of EPA’s Energy Star national building competition,” said Ray Yeager, company CEO. “Through our commitment to sustainability we continually strive to improve our energy efficiency, and we look forward to seeing how we measure up against other buildings across the nation.”

The 2011 Energy Star competition includes 245 teams from 26 different types of commercial buildings, such as retail stores, schools, hotels, and museums. Buildings are located in 33 states and Washington, D.C.

As a National Historic Landmark, DMI Cos.’ headquarters is one of only 11 buildings in the competition that are over 100 years old. The smallest building is just over 6,000 square feet, and 15 buildings cover more than 1 million square feet of floor space with the largest totaling nearly 3 million square feet.

“Buildings of all shapes and sizes are saving money and energy with help from EPA and Energy Star,” said Jean Lupinacci, director of the Energy Star commercial buildings program. “We applaud the contestants of EPA’s Energy Star national building competition for taking action to protect the environment and save energy in the buildings where we work, play and learn.”

Competitors will measure and track their building’s monthly energy consumption using EPA’s Energy Star online energy-tracking tool; make improvements to their building’s energy performance; and share their progress.

Of the initial 245 competitors, a small group of buildings will be selected as finalists in July. Among the finalists, the building that demonstrates the greatest percentage-based reduction in energy use intensity will be recognized as the winner Nov. 2.

To try to reduce the amount of energy being used in the DMI headquarters, the organization is taking several steps. The company will invest in an American Society of Heating, Refrigerating, and Air-Conditioning Engineers level No. 2 energy audit. Officials will also create a sustainability program and invest in a green roof.