Plant fibre flooring is like wood or any natural product. It will expand and contract with temperature and moisture changes. To restrict movement in the natural flooring not only does it need to be acclimatised in the area it is to be installed but must be fitted using a stable double stick underlay and adhesives that are recommended by the natural flooring supplier. The method of installation is slightly more involved than standard carpet and many carpet fitters are not happy or proficient in handling the products. Without the correct procedure to install natural products you may find that they bubble when they expand or pull away from the walls when they shrink leaving an unsightly gap. If fitted correctly even though the product continues to expand and contract you will never notice.