影响既有建筑节能改造的因素

Effect factors on energy-saving reform of construction

通过既有建筑节能改造必要性的论述,指出既有建筑节能改造重点应从窗户、外墙、屋顶等方面进行。

The paper points out that the energy-saving reform of construction should emphasize on window, external wall and roof.