Duostone is the ultimate solution for easy application of the finest ceramic floor tiles to your roof terrace, balcony, porch or patio. Duostone ceramic tiles not only look beautiful but are also practical. They prevent the formation of algae and moss meaning no more hassle with high-pressure cleaners. And no water marks, red wine, coffee or any other nasty stains on your beautiful terrace. The tiles are as easy to clean as the floor tiles inside your home. And these outdoor tiles are guaranteed to retain their color in even the harshest sunlight.