A longtime resident of the greater Dallas/Fort Worth metroplex, Charles “Chuck” Scroggs lives in Rockwall, Texas, and serves as president of two construction companies in nearby Rowlett. One of Chuck Scroggs’ areas of expertise in Rockwall, Texas, is curtain wall construction. In architecture, the term “curtain wall” can be applied to any thin wall framing that contains in-fills of transparent or opaque glass, or panels comprised of other substances such as metal or stone. In general, the frames of curtain walls are comprised of aluminum or other lightweight metals. These frames are attached to the exterior fronts of buildings to serve as facades without bearing any structural weight. The basic approaches to curtain wall fabrication and installation can be divided into the general categories of stick systems and unitized (or modular) systems. The least complicated form of curtain wall, stick systems are comprised of standard individual framing elements that workers assemble at the construction site. Unitized systems, by contrast, involve creating and connecting relatively large curtain wall sections that shop workers have already preassembled.