Tech. Sgt. Darin Ransaw of the 512th Civil Engineer Squadron, measures a piece of plywood to be cut during a Habitat for Humanity build in Dover, Del., June 5. The plywood was used for the roof of the house. More than seven Airmen are helping the organization build the house, which is scheduled to be completed in about six months. (U.S. Air Force photo/Staff Sgt. James Bolinger)