Which is better, a high-rise building or an ordinary attic?

It is said that the upper floors of 9- 1 1 are generally lime floors, which is not good. The public facilities on the upper floor are large, so the share is high, and the utility rate is generally low, ranging from 60% to 80%. Of course, if you use more public facilities, some people will feel comfortable. The utilization rate of multi-layer is generally high. As long as the roof with attic is waterproof and insulated, there will be no problem. Some attics are not high enough, which is a gift. The attic can be used as a small study, and vegetables can be planted on the roof, hehe.