Which of the following is NOT a common cause of delamination in carpets?

Delamination in carpets occurs when the primary backing separates from the secondary backing, often due to various stressors. One of the factors contributing to delamination is age, as older carpets naturally may break down due to wear and tear. Similarly, improper cleaning methods can damage the adhesive used to bond the carpet layers together, leading to delamination. Unusually heavy traffic can also contribute significantly to this issue, as the excessive wear can weaken the bond between the layers.

In contrast, light foot traffic does not exert enough stress on the carpet to cause delamination. Carpets designed for residential use typically endure light to moderate foot traffic without significant risk of layer separation. This understanding is essential for carpet maintenance and selecting the right carpet for specific environments. Thus, light foot traffic is not considered a common cause of delamination, making it the correct choice in this context.