Curtain wall and Punched Windows

The primary function of the product (i.e., curtain wall) is to protect the building interior against the exterior natural phenomena such as sun exposure, temperature changes, earthquake, rain, and wind. The curtain walls are framing that are attached to the building structure and do not carry the floor or roof loads of the building. They are primarily composed of glass (by weight), followed by aluminium, steel, plastics, and silicone. The expected lifetime for the curtain walls is 25 years.