Double curtain wall construction

Double-layer curtain wall with its superior performance, comfortable environment a few years ago in the industry has a small upsurge of application. In recent years, the application of double skin facade case less and less, the reason is that the double curtain wall in structure, insulation and fire resistance of different views and cognition, some even have opposing views and cognition, such as some people think that the double curtain wall are energy saving, some people think that the double curtain wall energy saving, some people think that the double curtain wall thermal cycle to deal with the energy saving, processing is bad not energy-saving.

As the name implies, the double-layer curtain wall should have two layers of curtain wall, and both layers should be curtain wall structure. Therefore, for the transformation of some existing buildings, only hanging a layer of glass curtain wall on the outer wall of the original traditional building can not be called double-layer curtain wall. Another example is the original ordinary glass curtain wall, only a layer of glass added to the indoor side floor, it can not be called a double curtain wall. Although some of these maintenance structures have the performance of double curtain wall, it can be called double exterior maintenance structure, but it can not be called double curtain wall, just as we can not call double window double curtain wall. Only the inside and outside of the two layers are the structure of the curtain wall can be called a double curtain wall. The outer curtain wall usually uses point-supported glass curtain wall, glass curtain wall or hidden frame glass curtain wall, the inner curtain wall usually uses the glass curtain wall, glass curtain wall hidden frame, in order to increase the permeability of the curtain wall, there are also inside and outside the curtain wall, which are using point-supported glass curtain wall structure.

Between the outer wall, there is a channel width that is usually hundreds of mm, the channel of the upper and lower parts, respectively, they have the outlet and inlet; air from lower inlet can go into the channel, and discharged from the top of the outlet channels. It can form the air flow from bottom to top in the channel; the heat is out of the channel within the channel at the same time, so it also known as hot channel wall double skin facade. The inner curtain wall panel is closed, and the outer curtain wall is connected with the outdoor; air through a passageway, so that the air in the passageway of the double curtain wall can circulate with the outdoor air. The inner curtain wall glass is usually hollow glass, and the outer curtain wall glass is usually monolithic glass.