The 25,000-square-foot addition to Delta Dental of Iowa’s corporate headquarters in Des Moines, Iowa, has achieved LEED Gold certification from the U.S. Green Building Council.
Designed by OPN Architects to be energy-efficient, flexible, and expandable, the building features open office and meetings spaces. The exterior of the building is clad in a terra cotta rainscreen system; selected for its modularity, speed of installation, and visual warmth of the material. The terra cotta panel size sets up an organizational grid that is carried through the entire building.
There are four levels of LEED certification. The number of points a project earns determines the level of LEED certification that the project will receive. There are specific prerequisites projects must satisfy and a variety of credits projects can pursue to earn points. The number of points the project earns determines its level of LEED certification. Gold, the second highest certification, requires 60 to 79 points.
Currently, OPN Architects has more than two dozen LEED certified projects completed, and more in the process of certification, including the original 25,000-square-foot facility completed in 2010, which was certified LEED Silver.
This achievement for the Delta Dental Headquarters is in addition to a Merit Award from the American Institute of Architects, Iowa Chapter (AIA Iowa), for the original design. Both were constructed with Ryan Companies.