The Ceramic Tile Institute identifies tile in the following three categories. Meets or exceeds general safety and health regulations ADA and OSHA requirements. Terra Rosso 8 Hex Custom Tiles Flooring Terracotta Floor The code requires a minimum wet dynamic coefficient of friction DCOF of 042 for tiles in level interior spaces expected to be walked upon wet. Tile coefficient of friction . Coefficient of friction is 060 or greater wet. Ad Find the job you want. The commonly specified and often misunderstood value of. This new measurement developed by the Tile Council of North America is referred to as Dynamic Coefficient of Friction or DCOF and now that many manufacturers have converted solely to DCOF in technical specifications its important to understand what it actually means. The past standard which is still used to some degree today states that a tile in wet conditions should have at least a 06 static coefficient of friction rating over a. ANSI officially released ANSI ...