PTV stands for pendulum test value, which is a measurement of how slippery a surface is – whether it is a floor or a pavement. PTV also calculates slip-resistance. It is measured with a piece of equipment called a pendulum, which simulates a shoe (or a bare foot) on a surface. The calculation will create a slip-reading of 0 upwards.
Normally, we measure slip-resistance as follows:
0-18 = very low slip-resistance
18-25 = moderate slip-resistance
25-36 = good slip-resistance
36+ = excellent slip-resistance
If you are checking an area that is covered by water, such as a swimming pool, an ideal PTV rating would be 36+. That would certify the floor as slip-resistant.
All tiles in our R+PTV collection have a minimum rating of 36.