We had Vinton Carpet & Flooring Co install linoleum in our kitchen..
Since the width of the entire floor was more than 12 feet, a seam was needed to add an additional foot. They decided to do the seam by our kitchen sink. After 2 years the seam start splitting in several areas and opening up. We call the owner of Vinton but he would not repair or replace the floor.
We had to eventually replace the whole floor with another lino product. We contacted another company but this time the seam was put in another area where there was little traffic or chance of moisture getting into the cracks. We still have this floor and it is 12 years old.