Dow Building Solutions, in collaboration with Cobblestone Homes, announced the completion of a 12-home energy-efficiency test community in Midland, Mich., Home Channel News reported. It is the nation’s first subdivision designed to generate scientific, whole-house performance data while providing all the typical comforts of home to its occupants. The new homes will generate comparative data on home energy efficiency based on whole-house insulation, air-sealing systems and real-world living conditions.