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HomeTechnicalAsk the ExpertsDCOF on a pool deck

DCOF on a pool deck


I’m designing a home and need to pick a tile for a residential pool deck. Are there standards for using slip-resistant tiles in areas like this, and if so, what are they?


Thank you for contacting the NTCA, The measurements for slip-resistance are referred to as COF (Coefficient of Friction) and DCOF (Dynamic Coefficient of Friction). COF is the measurement of a tiles static frictional resistance, closely related to traction and slipperiness. DCOF is a measurement of dynamic friction, which is the frictional resistance one pushes against when already in motion.

Regarding the question of whether there is a specification or guidance for DCOF on a pool deck.  There is no specification or standard for slip resistance/DCOF/COF on a pool deck.  The reason is that each has its own unique design and use.  As such, it is up to the good communications process between the architect/specifier, owner, distributor, and installer to discuss and determine the best tile (type, glaze, traction, size, number of grout joints, etc.) for the installation being considered.

In addition, the tile and setting materials, membranes, expansion and movement joints, and other factors must all be carefully considered and approved or engineered for the application.

The NTCA Technical Team

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