aaah! bcoz it's concrete!
The reason a concrete floor feels colder than a carpeted floor is because the carpet acts as an insulator to trap heat. The concrete on the other hand will stay cold way longer once it is cold.
You will need existing floor to be clean and dry. Layering concrete like this is called a cold joint. Concrete does not like cold joints. That I why big jobs like the cn tower and Hoover dam are all one pour basically. If you have to do cold joints, clean base floor, rent a sacrifice tool at a rent shop, rough up the floor as much as possible, clean all dirt and dust again, cover floor with a bonding agent from a box store, pour new concrete. Over 2" is recommended. Another way to get it to hold is to drill holes into base floor or even put various concrete screws in base floor with just the heads sticking up a little bit so new concrete can grab.
because all of the gravity is coming up from the ground where air circulates through it
Yes, concrete has form of "salvatory" element in it's mixture which can conduct heat or cold. Like on a sunny afternoon, the concrete becomes hot; likewise, on a cold night, the concrete becomes cold.
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.
yes, it gets cold in the winter
The extreme cold of winter = the winter's extreme cold.
Cold Winter happened in 2005.
Nevada is cold in the Winter
only if you put the right kind of plant in it
In winter it is very cold sometimes it can be -94 degrees
Yes, Wales is very cold in the winter.