According to the pros, this is not very efficient in energy saving(unless you want to make your basement a super-large fridge in the winter).
The right way is to insulate the walls of the basement. But you have to frame around the cinder block walls first, and to cover them with drywall afterwards.
The right way is to insulate the walls of the basement. But you have to frame around the cinder block walls first, and to cover them with drywall afterwards.