Like linoleum floors, vinyl flooring can incur stains as a result of rugs and mats. The yellowing that occurs in linoleum floors will clear up once the rugs and mats are removed and the floor is exposed to light and air. Vinyl floors, on the other hand, may suffer permanent discoloration and may need to be replaced. Often times discoloration occurs as a result of heat on top of the rug. You can help minimize damage by keeping sunlight off your vinyl and linoleum floors, especially in areas where there are rugs. You may want to consider looking into rugs that meet green standards. Have a question about green flooring or green floor accessories? Check out the green FAQ section on FindAnyFloor.com.