Core void

Check for flatness

Core void

Core void

Check left overmaterial

Core void

Thin where layer is not supported by a core in the affected area

Thin where layer

Core Voids (Multi-Layer Resilient Plank)

Floor Detective® Claims and Conditions Guide

Summary

Core voids in multi-layer resilient plank flooring are localized internal areas where structural support within the plank body is absent, incomplete, or significantly reduced. Modern resilient plank products commonly consist of a wear layer, decorative film, rigid or flexible core structure, and in some products an attached backing or cushion layer. When a localized void exists within the core, the upper layers may temporarily bridge across the unsupported area during normal service conditions. Under concentrated loading, repeated traffic, or localized flex stress, the unsupported surface may deform downward into the void and produce fracture, puncture, collapse, or localized structural failure. Because the condition exists internally within the plank body, it may remain concealed prior to installation and may only become visible after the flooring is subjected to service conditions. Proper classification requires distinguishing internal support loss from impact damage, substrate-related deflection, use-related surface damage, or external mechanical stress. See also Broken Locking Profiles, Blisters, and LVT and SPC Floor Problems for broader context.

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