What is the optimal ice thickness?
The thickness of the ice is one of the things that determines how much energy is consumed maintaining the ice.
Conditions to maintain the ice vary from rink to rink. Laying, taking care of, and maintaining ice is not the same thing in an “event arena” as it is in an “ice barn”.
A high level of humidity provides a rugged surface with a lot of snow production when in contact with the sharp blades of a skate.