Code
POOL floors in areas less than three feet (0.9 m) deep shall have a slip resistant finish with an acceptable coefficient of friction.
Annex
“Slip resistant” is usually considered to mean having a static coefficient of friction of 0.6 or better for both wet and dry conditions. Water three feet (0.9 m) and less is considered shallow water and the majority of BATHERS are capable of walking on the POOL bottom at these depths, so a slip-resistant surface is required. At depths greater than three feet (0.9 m), most BATHERS are sufficiently buoyant making the coefficient of friction for the POOL floor surface less important. Slip resistant surfaces shall meet or exceed the minimum coefficient of friction (typically 0.8 for ramped surfaces and 0.6 for other wet surfaces; currently, ASTM standard C1028 is under revision.) as set forth by the following groups:
* Americans with Disabilities Act (ADA)
* Occupational Safety and Health Administration (OSHA)