Good indoor and outdoor materials include olefin, also called polypropylene, nylon and polyester, as noted by CarpetBuyersHandbook.com. These materials are found to stand up the best against weather, sun and dirt.
Olefin is a popular material because it absorbs minimal amounts of water. The material can even float for a time, while other indoor and outdoor materials start to take on water after prolonged exposure. This material, like most outdoor carpeting, is commonly treated to be ultraviolet resistant so colors do not fade. There are different methods to accomplish this including melting the material with the color. This allows the rugs to be cleaned with bleach or other strong cleaners without ruining the coloring.
Most olefin rugs are machine made, but the other materials, such as nylon or polyester, may come in handwoven styles as well. The style of the rug and material can influence what type of backing these rugs get. Olefin may come with an adhesive material because it does not absorb water like the others. Backing on the other rug materials can include polypropylene, jute and other natural fibers; the rugs backed with the jute or natural fibers can develop mold issues, meaning that they should be hung up to dry after cleaning or cleaned with specialty cleaners. These materials also come in a wide variety of colors and styles, which makes them ideal for outdoor decorating.