Most cellular shades are either glued or heat treated or both. All of our cellular shades have a lifetime warranty against fabric separation and a remake is usually as easy as sending a picture over. Here is a picture of a job where the customers string snapped and the blind separated. You can tell this is the case because it does tear at the fuse. If this happens to you, simply call and let us know. Although rare, it does seem to happen a couple of times per year.