Fired at 2500 degrees, porcelain tiles are able to resist the ravages of sunlight and UV rays and the damage they cause. Porcelain tiles are stain- and weather-resistant, thanks to their very low water absorption rate. As well, because so little water is absorbed, outdoor porcelain tiles won’t crack when temperatures drop, unlike many other materials. Designers often recommend installing porcelain tiles in outdoor spaces because of their outstanding durability and strength.