Preventing slips & falls is an important concern when choosing an appropriate outdoor flooring surface. Because porcelain is less porous than other materials like natural stone, it will absorb less moisture. All porcelain tiles have less than 0.5 percent water absorption rate. In areas prone to wet conditions, such as a patio or around the pool, porcelain’s moisture-resistant properties and subsequent anti-slip qualities help contribute to a maximal level of safety. Porcelain tiles usually have printed patterns on top, and others have an anti-slip coating, increasing the slip resistance of porcelain tiles.