Absolutely. I use "VisQueen" 6-mil.. It is what they use prior to pouring a foundation. If the garage is damp and cold, I would also use a Golden-Rod because you must keep the bike a couple of degrees warmer than any surrounding metal. This way it forces condensation to a better object other than your bike.
Wouldn't that be a cautious and slippery surface as far as foot grip?
How about apartment living.No indoor storage. Is there anyone who stores there bike outside all winter with just a cover?