Curtain Wall:  aluminum-framed wall containing in-fills of glass, metal panels, or thin stone. The framing is attached to the building structure and does not carry the floor or roof loads of the building.

Mullions: vertical element that forms a division between units of a window. Its purpose is to provide structural support to an arch or lintel above the window opening.

Truss:  A supporting structure composed of beams, girders, or rods commonly of steel or wood lying in a single plane.

Columns: It is a structural element that transmits through compression, the weight of the structure above to other structural elements below.

Veneer: A thin layer applied to another material.

Cladding:  Is the application of one material over another to provide a layer that  controls the infiltration of weather elements and for aesthetic purposes.

Gasket: a piece of material that is used to make a tight seal between two parts that are joined together.