There is however a possibility of excessive residue and soil build up if the machine you are using has inadequate extraction capabilities. Dry foam is the ideal method of choice if you have older carpet if you want to get your carpet as clean as possible. You can rent a machine at your local department or carpet store if you don't think you'll use it enough to buy it. Antique carpets represent enormous range in motifs and color harmonies and you'll simply lose yourself seeing the diverse combinations of rich antique colors and heavy intricate weaving. The diverse range of antique carpet pieces that you'll encounter while shopping for them are mostly Oriental carpets and rugs that portray the mystery and legend of the far off lands of the Orient. The tiles will vary in density as well as thickness. Carpet tiles with more thickness have a cushion so that it's soft on the surface, making them ideal for homes. They will also provide a degree of thermal insulation as well. The thinner types of tiles are best for offices, gyms, and other high traffic areas. Vegetable and protein fibers share the common disadvantage that they are both very absorbent and will have extended drying times when wet cleaned - which can lead to mildew, shrinkage, and even dry rot. Wool Wool fiber is produced from the fleece of lambs or sheep. Wool of carpet is imported from countries such as England, Australia, and New Zealand. Even with professional installation, you won't pay near as much as you would for hard surfaces. Unlike hard surfaces, carpet can keep you comfortable if you decide to lay down on it. Life span The carpets of today are very durable and can outlast most other types of flooring available on the market. All you have to do is select a type of carpet that has a life span of 5 - 30 years or more, which is very common now days. Acrylic/modacrylic Both of these fibers were first used as carpet yarns around the late 1940s. They disappeared around 1988 due to the competition from other fibers. In was reintroduced to the market around 1990 in Berber styling. This was done so that people could take advantage of the wool like appearance, hand feel, and the fact that its more spot resistant, much easier to clean, and not damaged in the ways that wool is.