When considering carpet flooring, the decision of what to buy often is a result of personal taste and money. There are several other things to consider, though, particularly the type of fiber and qualities that are found in each, and the construction of the carpet.
Wool
Wool carpet flooring has been in existence for over 5,000 years, and seems to last forever. Heavy traffic can wear them down, and they are easier to stain. People with wool carpets often have area rugs and runners to protect the most heavily-used carpet areas. A soft, comfortable carpet fiber, wool is extremely expensive.
Polypropylene
Carpet flooring returned to its glory with the advent of polypropylene fibers. Also called Olefin, its color doesn't fade. This makes it ideal for areas that receive a lot of direct sunlight. Olefin does not absorb water. Instead of dyeing to achieve color, pigment is built into the fiber while it is created. It is mildew resistant. A downside is that is does not have the resiliency seen in other carpet flooring. As a rule of thumb, that problem is resolved by making it a loop pile carpet.
Nylon
Nylon is one of the better-known synthetic fibers, and the most expensive. It's excellent for both loop and cut pile carpet flooring, and accepts dyes readily. Its versatility compensates for the lack of stain resistance. Nylon is usually treated with a stain-resistant formula. Nylon is constantly improved. The flexible, long-lasting nylon fiber is now softer.
Polyester
No manmade fiber compares to polyester for softness, stain and fade resistance, and color. Construction is the key to exceptional carpet flooring with polyester. It is less expensive than nylon and available in cut pile carpet.
Blends
Scientists continue to work with fibers, blending the best features to achieve softness, stain, and fade resistance.

























