from web site
Trained professionals and engineers work to provide curtains, including aluminum, in large reticulated frames. The spaces in the frame are filled with glass. While glass is the most commonly used material, it is not the only one. Metal panels, curtains and stone veneer can also be used. The structure is connected to the main building in every floor and corner, which makes your workplace more effective. The Curtain wall installation is resistant to air and water ingress, and therefore decomposes more slowly than other building materials. They also withstand natural forces on buildings, such as earthquakes in strong winds.