The abstract noun form of the verb to bare is the gerund, baring.

The noun form of the adjective bare is bareness, a concrete noun, a word for a physical condition.

Less heat is carried away from the feet.

Not really. You will need to seal the concrete surface to prevent concrete dust becoming a problem. Also, the carpet makes the floor warmer to walk on, concrete would feel cold to bare feet.

That's because a carpet doesn't conduct heat as well.

Bare concrete is porous and vulnerable to chemical attack and stains. Hence a sealer is used to seal the concrete counter top. The sealer should be applied to the concrete in multiple thin coats versus rather than a thick heavy coat. For additional protection food-safe finishing wax can also be used over the sealer.