Cleaning the air with roof tiles

Date:

June 4, 2014

Source:

University of California - Riverside

Summary:

Engineering students have created a roof tile coating that when applied to an average-sized residential roof breaks down the same amount of smog-causing nitrogen oxides per year as a car driven 11,000 miles makes. They also calculated it would cost only about $5 for enough titanium dioxide to coat an average-sized residential roof.