"The Army has a $95 million contract to foam up to nine million square feet of building space in Iraq, of which about 60 percent has been completed. The Army also let a $29 million contract to foam structures in Afghanistan. So far, 150,000 square feet have been foamed. It takes a mere 26 days to recoup the costs of the foaming through the fuel savings." https://www.army.mil/article/20777/army_saves_fuel_and_lives...