There’s a room that doesn’t get used much in this apartment and I was thinking of storing some stuff (e.g. bike, etc) in there, but wanted to protect the carpet (and my deposit). So I put down some plastic sheeting and then stuff on top.

I vaguely remember a friend getting condensation under one of their desk chair mats in a carpeted room that sat on top of a garage. But this room is just on top of another apartment.

Is there any chance of moisture accumulating in the carpet? I’ve attached a picture of the floor section.