What causes seam damage? There are different reasons why this may occur. This resident from Albuquerque , New Mexico noticed this happening to his carpet. This could be a result of wear. After time, the traffic over the seam will cause the glue to break down. This then leads to the seam separating which allows dirt into the seam causing further breakdown of the glue. Another reason may be the result of exposure to water. Either through flooding or being repeatedly over-wet through improper cleaning. The seam paper can break down and the glue will loosen and cause separation. This will need attention to prevent the carpet itself from fraying and becoming damaged beyond just the seam. A professional in carpet repair can easily repair this before it damages your carpet further.