Vertical movement

Hollow Sound Perception

Vertical Movement

Gaps

Vertical Movement

Gaps

Vertical Movement

Subfloor Flatness

Subfloor Flatness (Laminate)

Floor Detective® Claims and Conditions Guide

Summary

Subfloor flatness refers to how even and uniform the substrate surface is before laminate flooring is installed. Laminate flooring is designed as a floating system that relies on consistent support beneath the planks to distribute load through the locking system. Flatness is different from levelness; a floor may be level but still contain high and low areas that create stress within the laminate assembly. When flatness tolerances are not met prior to installation, the floor system may bridge, deflect, or concentrate load at joints. Observed performance symptoms do not

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