What is Unitized construction vs. Stick construction?

The expressions Unitized and Stick refer to the method of construction of a framing system for any glazed components within a building faade. Stick construction generally refers to components that have been factory prepared, shipped to the jobsite, and then erected piece by piece on-site. Unitized construction conveys that the components have been factory prepared and assembled then shipped to the jobsite as a completed unit. Each unit is then connected together to form the faade. Stick construction takes less time in the factory but takes longer to assemble on-site and presents some quality control issues. Conversely, Unitized construction takes longer to manufacture in the factory, however quality control can be strictly monitored, and it does accelerate the erection of the faade on-site. ... more