When selecting tiles for outdoor use, which property is especially important?

When selecting tiles for outdoor use, slip resistance is particularly important due to the environmental conditions that can affect safety. Outdoor surfaces are often exposed to moisture from rain, dew, or snow, which can significantly increase the risk of slips and falls. Tiles that have a high coefficient of friction provide better traction, helping to ensure that individuals can walk safely on them, even when wet.

Other properties such as color variety, lightweight design, and availability in local stores may have their own merits, but they do not address the fundamental safety concern associated with outdoor surfaces. Color variety can enhance aesthetic appeal, lightweight design might facilitate easier installation, and local availability ensures convenience, but none of these factors can replace the necessity for slip resistance in minimizing accidents and ensuring user safety in outdoor environments.