Ceramic and porcelain tile are made from basically the same clay materials. Porcelain tiles are fired at a much hotter temperature, which makes them harder and denser. This means they are less porous than ceramics
, making them ideal for anywhere, even outdoors. When a porous tile is placed outdoors, it will absorb water. When a freeze comes along, that tile or its glaze, will then crack. In the Northwest, this is a major problem, which is why we recommend only tiles rated for our climate to be installed outdoors. A good quality porcelain is that tile.