Peaking end joints

Lack of expansion space

Peaking end joints

Measure peaking

Up-and-down movement when applying finger pressure

Isolated peaking

Peaking end joints

Peaking end joints

Check floor temperature

Peaking end joints

Peaking

Peaking end joints

Steel ruler shows peaking

Steel ruler shows peaking

Lack of expansion space

Floor locked in place

Check expansion space

Peaked End Joints (Resilient Plank)

Floor Detective® Claims and Conditions Guide

Summary

Peaked end joints in resilient plank flooring are localized areas where adjoining plank ends rise at the short-edge joint. The condition develops when stress builds at the joint and is redirected upward rather than being absorbed through normal movement or support. This may be associated with dimensional change, restricted movement, substrate irregularity, adhesive behavior, or pre-existing plank distortion. Visibility may increase under directional lighting, but lighting does not create the condition. The presence of end joint peaking does not

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