Carpets consist of four distinct layers. The face yarn is the topmost, and it’s stitched to the next layer, known as primary carpet backing. Made with a pre-developed piece of fabric, it provides support and enhances the integrity of the carpet. Manufacturers then apply a bonding layer that affixes the primary backing to the final section, known as secondary backing. This piece improves the installation process by improving the carpet’s stability.
The backing layers may separate when the bonding layer fails. Sometimes it’s due to poor installation, but in other cases it can happen when the carpet is damaged by water. A flood, for example, can leave the carpet soaked for days. That’s just enough time to weaken the bonding agent and cause the backing layers to separate. Even overexposure to moisture during carpet cleaning or due to harsh products can cause the problem. Heavy traffic may also eventually lead to adhesive separation between the carpet padding layers.