Floor Flatness Ff Workmanship
Floor Flatness
Check floor flatness
Lippage
Lippage
Lippage
Lippage
Lippage
Floor Flatness (FF) and Workmanship (Tile)
Floor Detective® Claims and Conditions Guide
Summary
Floor flatness describes the degree of surface variation present in a concrete slab over a defined measurement distance. Flatness conditions originate from concrete placement and finishing practices rather than from tile materials. Because tile assemblies are rigid and do not readily conform to abrupt surface irregularities, substrate flatness strongly influences the performance and appearance of tile installations. Evaluation therefore focuses on
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