An aluminum stick curtain wall system is a type of facade construction commonly used in modern architectural designs. It consists of vertical and horizontal aluminum mullions (sticks) that are assembled and installed on-site to create a grid-like framework. Glass panels or other cladding materials are then installed within this framework to form the exterior envelope of the building.

To improve thermal performance and reduce heat transfer, thermal breaks are often incorporated into the aluminum mullions. These insulating materials help to minimize energy loss and enhance the overall energy efficiency of the building.