What if you could help reduce the amount of pollutants in the air through the tile installed on your roof?  Over the past several years, smog-eating roof tiles have made their way onto the construction scene here in the U.S.  Originating in Japan and embraced in Europe, the technology behind these tiles has been used in a variety of green products including cement, paint and architectural panels for years.  Now roof tiles have been added to the list.

How It Works

The upper portion of the roof tile is coated with titanium dioxide, a catalyst that helps break down nitrogen oxide, one of the main components of smog, from the air. As natural light makes contact with the tile’s titanium dioxide coating it converts the nitrogen oxide into calcium nitrate, a benign compound found in your every day garden fertilizer.  The calcium nitrate simply washes away with the next rain shower and the air is left cleaner as a result.

How Effective Is It?

Surprisingly this process is very effective.  The average home (approximately 2,000 sq. ft.) can effectively eliminate as much smog in one year as produced by a car driven 10,800 miles.  That’s remarkable!  Additionally, the tile is resistant to algae or moss growth and dries out in half the time of standard tiles due to it’s porous, concrete make up.

While the typical homeowner should anticipate anywhere from $700-$1,000 to be added on to the cost of their roofing project, this cost is expected to come down as consumers continue to be drawn to this eco-friendly option.