Floor roof of the building is one of the commonly used forms of the roof, which often internal eave and gable roofs or places open Tongqikong helped breathable, Paishi and heat release.

• 通风屋顶的原理是在屋顶设置通风间层，一方面利用通风间层的外层遮挡阳光，使屋顶变成两次传热，避免太阳辐射热直接作用在围护结构上；