Because of the pressure of wind and heating,and the wall of tall building is very tall,the amount of air which form outside will pervade more than multistory building.

• 由于受到热压和风压的综合作用，高层建筑随着高度的增加，空气渗透量比多层建筑有较大增加，采暖热负荷计算与多层建筑有所不同。