What is the difference between porous and nonporous tile?

Porous tile is characterized by its ability to absorb moisture, making it more susceptible to stains and damage if not sealed properly; examples include natural stone tiles like travertine and slate. Nonporous tile, on the other hand, has a dense surface that resists moisture absorption, making it easier to clean and maintain; common types include ceramic and porcelain tiles. This fundamental difference impacts their use in various environments, such as bathrooms and kitchens, where moisture is prevalent. Additionally, porous tiles often require more maintenance and sealing compared to nonporous options.