Insulation install
U.S. Air Force Senior Airman Christopher Canlas, and U.S. Air Force Master Sgt. Sherwon Bennett, both from the 23rd Mission Support Group, put insulation into the wall frame during the Habitat for Humanity build, in Valdosta Ga., on Sept. 13, 2011Habitat for Humanity has helped build over 400,000 affordable houses and served more than 2 million people around the world. (U.S. Air Force photo by Staff Sgt. Joshua J. Garcia/Released)