When properly constructed, a backyard skating rink will not kill the grass on your turf lawn—that's a common fear. Construction techniques will vary slightly depending on the resources available.
Do backyard ice rinks ruin grass?
Why an Outdoor Ice Skating Rink Won't Ruin the Lawn
The reason is that once temperatures are consistently below 50 degrees, perennial grasses go dormant and won't die when exposed to long-term darkness and weight. The first key is to put down the ice rink once the lawn has gone dormant.
What is underneath an ice rink?
Insulation & Heated Concrete
Underneath there is a layer of insulation and a heated concrete layer. This keeps the ground below the ice from freezing, which could expand and ultimately crack the rink structure.